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دراسة بيئية مقارنة لتاثير الحاجز المائي في قضاء المدينة عند اسفل نهر الفرات == A comparative ecological study to the impact of Mudayna district barrier at the lower reaches of Euphrates River

Author name: سجاد عبد الغني عبد الله
Supervisor name: صادق علي حسين | عبد العزيز محمود عبد الله
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: An Ecological study was conducted, on monthly basis, for the period from November 2013 to October 2014, on the Lower reaches of the Euphrates River covering a location at northwest of Basrah province within the area between Al - Chebaysh district of Thi Qar province, and Mudayna district of the city of Basrah. The study area covered a distance of 16 kms lies between latitudes 47˚00 ' 18.81 " and 47˚09 '55.46" E and latitudes 30˚57' 41.53" and 30˚57'7.38" N. On 2010 the Ministry of Water Resources constructed an obstruction on the Euphrates River, 11 km west of Mudayna of a width 760 m. It’s aims is to raise water levels in the western side of the river for water to flow to Hor Al - Chebaych. Three stations were selected to execute the study. The former was situated in front of the Chebaish district and with a distance of nine kilometers east where station 2 was located. However, to the east of the constructed embankment and just three kms apart station 3 was chosen. The study revealed that air temperature ranged from 11 - 45°C and water from 10.5 - 37°C, light penetration from 15 to 210 cm. Turbidity from 0.66 NTU in October at station3 and 40.8 NTU in September at station1. Current speed ranged between 0.01 m/s to 0.41 m/s.The lowest value of Electric conductivity (2.4μS/cm) recorded in November at station 3 and the highest (5.74μS/cm) in March at station 1. Total dissolved solids between 1788 mg/ L to 3832 mg/L. the lowest value of pH (7.4) measured in August at station 2 and the highest (8.7) in February at Station 3. Dissolved oxygen ranged from 5.5 to 10.1 mg/L. BOD5 ranged from 0.19 to 3 mg/L. The lowest value of salinity (1.3 g/L) recorded in June and July from Station 2 and the highest (2.9 g/L) was encountered in February at station 3. Total hardness the lowest (880 mg/L) encountered in July at station2 and the highest (1350 mg/L) in February at station3. Total alkalinity ranged from 84 to 182 mg/L. Reactive nitrate ranged from 0.6 to 37.7μg at. N/L. Reactive phosphate ranged from 0.023 to 1.857μg at. P/L. Concentrations of some heavy metals were also studied. Copper was impalpable in November and December in stations2 and 3, but the highest (1.90 μg/L) was in August at station2. Intangible value was also recorded for Lead in November at station3 and the highest (0.1 μg/L) in July of the same station. Non - tangible value encountered for cadmium in November and December at stations 2 and 3 but the highest (12.73 μg/L) in July for station1. The study took in consideration application of the general index to the quality of water (CCME) as seasonal readings were calculated depending on river maintenance system for the year 1967 and amended in 1980. Throughout the study period values ranged between marginal (56.3) and FairB(69). Values were obtained depending on the previous studies, as were between marginal (47) and Fair( 65). Fish community structure was described. A total of 11851 specimens were collected included 28 species and 25 genera belonging to 12 families all belong to class bony fishes Osteichthyes. Cyprinidae came first concerning the number of species (13) and genera (11) and composing 37.44 %, these are Hamri (Barbus luteus), Prussian carp (Carassius auratus), grass carp (Ctenopharyngodon idella), (Acanthobrama marmid), (Alburnus mossulensis), Shillug (Aspius vorax), bunni (Barbus sharpeyi), gattan (Barbus xanthopterus), Hemicultuer leucisculus), small mouth benine (Cyprinon kais), big mouth benine (Cyprinon macrostomum), (Garra rufa) the mullet family Mugilidae formed 35.50 % and consist two species , namely, Liza abu green and Liza subviridis. Tilapia Cichlid family was represented by 21.84 % and two species, namely Tilapia zilli and Oreochromis aureus. Gumbusia (Pociliidae) formed 2.70% and represented by two species , namely (Gambusia holbrooki) and Poecillia latipinna, Clupeids family accounted for 0.025% and represented by two species, namely Tenualosa ilsha) and Nematalsoa nasus. However one species of seven families included Siluridae (Silurus triostegus) 0.58%, Sparidae Acanthopagrus latus (arabicus) 0.57%, Mastacembelidae (Mastacembelus mastacembelus) 0.28% , Hemiramphidae Hyporhampus limbatus)) 0.23% and minnows Engraulidae (Thryssa whiteheadi) rate of 0.345 % and Gobiidae (Bathygobius fuscus) was collected for the first time in the study area and in station 3 at 0.050 % and Heteropneustidae (Heteropneustes foosilis) formed the lowest contribution. The study also was taken in consideration the diversity indices in the Euphrates. The lowest value (1.04) of Shannon diversity index (H) was recorded in May from station1 and the highest (2.70) in the same month from station3, and was the lowest value for the evenness index (J) (0.476) in May was recorded for the station1 and the highest (0.933) in January. The lowest value of richness index (D) (0.868) was obtained in December from station1 and the highest (3.285) in May from station3. The lowest value for Jaccared similarity index (13.25 %) was in October between stations1 and 2 and the highest (100 %) in November and January between stations 1 and 2. Multivariate analysis (CCA) was applied to clarify the relationship between abiotic environmental characteristics and fish distribution in the aquatic environment.

تقييم مستوى التلوث العضوي وتاثيره في تنوع الطحالب الخيطية القاعية واصابة الاسماك بمجذافية الاقدام في ثلاث محطات في محافظة البصرة، العراق == Evaluation of organic pollution level and its effect on diversity of the filamentous benthic algae and fishes infected with copepods from three stations in Basrah province, Iraq

Author name: رشاد عبد الزهرة احمد
Supervisor name: ازهار علي عبد الله الصابونجي | خالدة سالم النعيم
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: Three Stations were selected based on its pollution level, first station was (Ashar chanel N : 30 º 31 13.31, E : 47º 50 13.63) the second station was (Shatt Al Arab N : 30 º 30 0. 29, E : 47º 51 36.31) and the third station was (Qurna N : 31 º 0 12. 79, E : 47º 26 37.11). Samples of waters, fish and sediments were collected monthly, collection of these samples started from Nov. 2013 till Oct. 2014 during the ebb time, group of physical and chemical variables had been measured like air and water, temperature, salinity, electrical conductivity, light penetration, pH, dissolved oxygen, biological oxygen demand, Total alkalinity (TA), Total hardness (TH), reactive nitrite, nitrate and phosphate, chlorophyll a in water, total organic carbon (TOC) in sediments, Soil texture was identified for each station through knowing the ratios of its components. Also, through the current study banthic algae were identified in areas of intertidal area, the parasitic copepod on fish also identified as biological indicator for the pollution at the selected stations.The study revealed that the air temperature varied between (17.5 - 43.2)Co while water temperature varied between (12 - 31) Co, the salinity varied between (0.57 - 4.16) ‰, while the electrical conductivity ranged between (0.9 - 6.5) mellisemince/ cm, while light penetration values were varied between (17 - 90) cm, pH values varied between (7.2 - 8.5), dissolved oxygen values were ranged between (3.5 - 11.2) mg/ l, while the biological oxygen demand varied between (1.2 - 9) mg/ l, value of TA and TH were varied between (81 - 190) mg/ l and (822 - 2123) mg/ l, respectively. The current study also recorded the concentrations of nutrients, that the values of nitrates and reactive nitrites ranged between (0.1 - 2.71) μg N - NO2/ l, (12.11 - 42.1) μg N - NO3/ l, respectively, while the reactive phosphate valuesbwere ranged between (1.31 - 9.98) μg P - PO4/ l, on the other hand the value of chlorophyll a were from (8.12 - 20.13) mg/ l.It was recorded in the current study a recognizable raise in values of total organic carbon (TOC) in the first station due to its highly exposed to the organic pollutants in comparison with the second and the third station, the values of (TOC) varied between (15.33 - 45.63)%, (4.4 - 22)%, (9.02 - 44.6)% for the three stations respectively.The current study demonstrated that the prevalence of green algae, all over study time in the second and the third station like (Cladophora fract, C. glomerata, Enteromorpha intestinalis, Schizomeris liblenii) also it was nocied that the Rhizoclonium crassipellitum was available more in the second station than the first and the third station, due to that the second station was featured with less contamination with organic materials. Some of the blue - green algae like (Lyngbya Birgei, L. major, Oscillatoria, amoena O. tenuis) showed prevealance in the first station because of the abundance of the organic pollutants, the red algae Compsopogon coeruleus, was recorded at three stations, the highest percentage was in the third station, the lowest percentage was recorded in the first station. It was also found in current study based on using algae as biological indicator for pollution, which prepared by Palmer. The first station was highly polluted with organic matter in comparison with other two stations, due to abundant of species which used as organic indicator of pollution. Results reavaled monthly variations in total number of benthic filamentous algea, which increased during two periods (Bimodel). Values of diversity ranged from 0.626 in station two to 2.15 in station two.The monthly variations in Organic Pollution Index (OPI) were different between three stations and ranged (25.54 - 48.72), (4.52 - 38.9), (15.14 - c28.69), in three stations respectively. The highest value 48.72 (Poor) was recorded in Ashar chanal at August and the lowest value 4.52 (Good) in Shatt Al - Arab river at December.Aquatic systems are affected by a variety of anthropogenic activities that decrease water quality through the introduction of organic pollutants. To investigate the relationship between fish parasite communities and water quality, copepods parasites were examined in 856 specimens of the fishes (Acanthobrama marmid, Acanthopagrus arabicus, Alburnus mossulensis, Carasobarbus luteus, Carassius auratus, Chelon subviridis, Coptodon zillii, Cyprinus carpio, Garra variabilis, Gambusia halbrooki, Leuciscus vorax, Liza abu, Luciobarbus subquincunciatus, Luciobarbus xanthopteru, Nematalosa nasus, Oreochromis aureus, Poecilia latipinna, Silurus triostegus, Tenualosa ilisha), sampled in three sites in the Basrah Province, Quran site (unpolluted), the Shatt Al - Arab (moderately polluted) and Al - Asher canal site (polluted). Six species of copepods, Ergasilus rostralis, E. mosulensis, E. ogawai, Ergasilus sp, Lernaea cyprinacea and Mugilicola kabatai were found in unpolluted site, and four species of copepods, E. rostralis, E. mosulensis and Lernaea cyprinacea were found in moderately polluted site, but the distribution of copepods was limited to the polluted site (Ergasilus rostralis, E. mosulensis and Lernaea cyprinacea). The variability of the calculated infection indices (prevalence and mean intensity) are affected by the pollution levels of the water. The unpolluted site had the highest species and the highest overall parasite abundance values.

العلاقة بين بعض العناصر الثقيلة وانتاجية الهائمات النباتية والكتلة الحية لبعض النباتات المائية السائدة في مناطق مختارة من شط العرب / جنوب العراق == Impact Of Some Heavy Metals On Qualitative And Quantitative Of Producer Organisms In Shatt Al - Arab River

Author name: رجاء عبد الكاظم حنف
Supervisor name: عبد العزيز محمود عبد الله | صالح عبد القادر العيسى
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: اجريت هذه الدراسة لمعرفة اثر بعض العناصر الثقيلة ( النحاس والرصاص والمنغنيز والخارصين والكوبلت ) على انتاجية الهائمات النباتية وبعض النباتات المائية فضلا عن قياس تراكيز تلك العناصر في المياه والرواسب في شط العرب للفترة الممتدة من كانون الثاني 2014 لغاية كانون الثاني 2015 . تم انتخاب اربع محطات ، تقع المحطة الاولى في منطقة الشرش والثانية في السندباد والثالثة في الصالحية والرابعة في منطقة العامية بالقرب من ميناء ابي فلوس في محافظة البصرة . اختيرت ثلاثة انواع من النباتات المائية السائدة في تلك المحطات الشمبلان Ceratophullum demersum والقصب Phragmites australis ونبات بربين الماء Bacopa moniera وحددت الكتلة الحية الهوائية لتلك الانواع . كما درست الهائمات النباتية كموانوعا ، وتم قياس دليل التنوع ودليل سمبسون (السيادة) ودليل التشابه للهائمات النباتية والنباتات المائية . كما قيست بعض العوامل الفيزيائية والكيميائية لمحطات الدراسة المختارة .تراوحت درجة حرارة الماء بين 10.1 و33.9 ºم، وانحصرت قيم الاس الهيدروجيني بين 7.6 و8.6 ، وتراوحت قيم الملوحة بين 0.9 و7.8 جزء بالالف ، وتراوحت قيم الاوكسجين الذائب بين 5.9 و16.9 ملغم/لتر، بلغت قيم المواد الصلبة الذائبة الكلية بين714 الى 4282.8 ملغم/لتر ،وتراوحت قيم القاعدية الكلية بين 87 - 391 ملغم كاربونات الكالسيوم /لتر، وقد سجلت العسرة الكلية قيم تراوحت بين 214 و596 ملغم كاربونات الكالسيوم /لتر. سجلت تراكيز النتريت والنترات قيم تراوحت بين 0.07 - 1.01 و5.64 - 19.63 مايكغم ذرة نيتروجين/لتر على التوالي ، وبلغت قيم الفوسفات بين 0.17 - 3.72 مايكغم ذرة فسفور/لتر كان تركيز النحاس والرصاص والمنغنيز والخارصين والكوبلت الكلي في الماء 3.22 - 53.99 و7.11 - 120.06 و3.09 - 49.05 و23.24 - 1130.35 و42.54 - 257.00 مايكغم/لتر على التوالي .تراوحت قيم المادة العضوية المتمثلة بالكاربون العضوي الكلي بين 27.8 - 119.2 و28.2 - 128.04 و28.4 - 176.9 و26.3 - 127.14 ملغم/غم وزن جاف لمحطات الشرش والسندباد والصالحية والعامية على التوالي . بلغ تركيز عناصر النحاس والرصاص والمنغنيز والخارصين والكوبلت في الرواسب بين 7.02 - 55.16 و18.16 - 165.11 و101.40 - 616.16 و19.34 - 469.12 و98.19 - 463.76 مايكغم/غم وزن جاف على التوالي ، وقيم دليل التجمع الجيولوجي بحدود (1.11 - - 0.62) و(1.17 - 1.56 ) و( - 2.10 - - 1.65) و(0.35 - 0.54 ) و( 2.56 - 2.87) للعناصر السابقة على التوالي ، مما يشير الى ان رواسب محطات الدراسة غير ملوثة بالنحاس والمنغنيز وغير ملوثة الى متوسطة التلوث بالرصاص والخارصين ومتوسطة الى شديدة التلوث بالكوبلت . اظهرت نتائج الدراسة الحالية سيادة انواع الهائمات النباتية التي تعود لصنف الطحالب الدايتومية (العصوية) Bacillariophyceae، تلتها الطحالب الخضر - المزرقة Cyanophyceae ، ثم الطحالب الخضر Chlorophyceae واخيرا الطحالب اليوغلينية Euglenophyceae في محطات الدراسة كافة ولجميع الاشهر . سجلت محطة الشرش 36 نوع تعود الى 31 جنس، وسجلت محطة السندباد 46 نوع تعود الى 38 جنس،بينما سجلت محطة الصالحية 48 نوع تعود الى 39 جنس ، اما محطة العامية فقد سجلت 30 نوع تعود الى 26 جنس .سجل تركيز الكلوروفيل في محطات الدراسة الشرش والسندباد والصالحية والعامية 0.12 - 2.65 و0.21 - 3.10 و0.31 - 3.89 و0.11 - 2.10 ملغم/لتر على التوالي ، اما تركيز العناصر الثقيلة (النحاس والرصاص والمنغنيز والخارصين والكوبلت) في الهائمات النباتية فقد كان11.55 - 48.26 و18.84 - 97.22 و139.80 - 659.01 و77.14 - 477.36 و43.55 - 216.02 مايكغم /غم وزن جاف على التوالي.تراوحت قيم الكتلة الحية الهوائية للنباتات المائية المدروسة بين 5.34 - 199.52 و34.45 - 465.77 و22.90 - 98.23 غم/م2 لنباتات الشمبلان C. demersum والقصب P. australis وبربين الماء B. monniera على التوالي ، وبلغ مدى تركيز العناصر الثقيلة (النحاس والرصاص والمنغنيز والخارصين والكوبلت) في نبات الشمبلان 1.04 - 88.53 و2.14 - 66.36 و36.05 - 1466.04 و56.56 - 197.14 و23.07 - 216.75 مايكغم/غم وزن جاف للعناصر على التوالي . وفي نبات القصب تراوحت تراكيز العناصر الثقيلة بين 6.17 - 66.34 و1.19 - 66.50 و32.76 - 467.02 و23.78 - 176.32 و7.11 - 98.11 مايكغم/غم وزن جاف على التوالي ، اما في نبات بربين الماء فقد كانت التراكيز 0.44 - 56.15 و0.81 - 67.04 و12.56 - 99.15 و33.34 - 116.55 و0.14 - 10.44 مايكغم /غم وزن جاف على التوالي . بلغت معدلات معامل التركيز الحيوي لمحطة الشرش في نبات الشمبلان 2.03 و1.22 و35.00 و1.25 و0.72 لعناصر النحاس والرصاص والمنغنيز والخارصين والكوبلت على التوالي ، بينما في نبات القصب كانت المعدلات 1.60 و1.05 و14.36 و0.83 و0.36 لنفس العناصر على التوالي . اما نبات بربين الماء فقد كانت معدلات معامل التركيز الحيوي تبلغ 0.57 و0.92 و4.47 و0.71 و0.01 للعناصر المدروسة على التوالي ، وقد بلغت المعدلات في الهائمات النباتية 3.08 و2.58 و79.51 و1.29 و0.57 لنفس العناصر على التوالي ولنفس المحطة . بينما بلغت معدلات معامل التركيز الحيوي في محطة السندباد لعناصر النحاس والرصاص والمنغنيز والخارصين والكوبلت لنبات الشمبلان 3.01 و1.19 و39.16 و1.61 و0.90 على التوالي ، ولنبات القصب 2.02 و0.89 و12.99 و0.94 و0.36 ولنبات بربين الماء 0.94 و0.80 و4.00 و0.85 و0.02 لنفس العناصر على التوالي ، اما في الهائمات النباتية في نفس المحطة فقد كانت معدلات معامل التركيز الحيوي 2.93 و2.65 و67.13 و1.64 و0.58 للعناصر المدروسة على التوالي . وفي محطة الصالحية سجلت معدلات معامل التركيز الحيوي لتلك العناصر في نبات الشمبلات 2.27 و1.23 و46.11 و1.31 و0.92 على التوالي ، وفي نبات القصب 1.97 و0.96 و15.76 و0.87 و0.41 على التوالي ، اما في نبات بربين الماء فقد كانت المعدلات 0.85 و0.95 و4.61 و0.69 و0.64 للعناصر على التوالي ، وقد كانت في الهائمات النباتية لنفس المحطة 2.07 و2.64 و63.71 و1.24 و0.72 للعناصر المدروسة على التوالي . اما في محطة العامية فقد كانت معدلات معامل التركيز الحيوي للعناصر الثقيلة المدروسة في نبات الشمبلان 2.11 و1.34 و25.67 و1.08 و0.70 على التوالي ، ولنبات القصب 1.91 و1.20 و16.21 و0.86 و0.43 على التوالي ، وفي نبات بربين الماء 0.95 و0.85 و7.34 و0.78 و0.03 على التوالي ، اما في الهائمات النباتية فقد كانت 2.98 و1.77 و117.96 و1.26 و0.92 للعناصر المدروسة على التوالي . بينت النتائج ان نبات الشمبلان هو الاكثر تركيز للعناصر وان عنصر المنغنيز هو العنصر المتميز بمعدل التراكم الاعلى ، كما بينت ان الهائمات النباتية اكثر مراكمة للعناصر الثقيلة من النباتات المائية . | The study was conducted to determind the effect of some heavy metals (Cu , Pb , Mn , Zu and Co) on productivity of phytoplankton and aquatic plants , as well as measurred their concentrations in water and sediments of Shatt Al - Arab river for a period from January 2014 to January 2015 . Four stautas were sellected from Shatt Al - Arab river , Frist (Al - Sharresh) , Second (Al - Sendibad Island) ,Third (Al - Salehia) , and Forth (Al - Ameia Region) near Abu - Floos port. Three types of dominanted aquatic plants were selected from these stations, Ceratophyllum demersum, Phragmites australis and Bacoba monniera .The areial biomass of aquatic plants and the quantitative , qualtitative and chlorophyl a of phytoplankton were determind . some of diversity indices for phytoplankton and aquatic plants were measured . Also some physical and chemical properties were measured for selected study stations .Water temperature was ranged between 10.1 - 33.9 Cº, pH 7.6 - 8.6 , salinity 0.9 - 7.8 ppt , DO ranged between 5.9 - 16.9 ml/L , TDS ranged between 714 - 4282.8 ml/L . The alkalinity showed values ranged between 87 - 391 ml CaCO3/L . The total hardness was record values between 214 - 596 ml CaCO3/L .. The investigated study showed nitrite and Nitrate values 0.07 - 1.01 and 5.64 - 19. 63 µg n/L respectively , phosphorus concentration ranged from 0.08 - 4.59 µg P - PO4 - 3/L . The concentration of Cu, Pb , Mn, Zn and Co in water ranged between 3.22 - 53.99 , 7.11 - 120.06 , 3.09 - 49.05 , 23.24 - 1130.35 and 42.54 - 257.00 µg/L respectively.TOC values in sediments were ranged 27.8 - 119.2 , 28.2 - 128.08 , 28.4 - 176.9 and 26.3 - 127.14 µg/gm dry wet for four station respectively . The concentrations of heavy metals Cu, Pb , Mn, Zn and Co in sedements ranged 7.02 - 55.16 , 18.16 - 165.11 , 101.40 - 616.16 , 19.34 - 469.12 and 98.19 - 463.76 µg/gm dry wet respectively .The values of Igeo index were ranged between - 0.26_ - 0.62 , - 1.17_ 1.56 , - 2.10_ - 1.65 , 0.35_ 0.54 , 2.56_ 2.87 for the heavy metals respectively.The present study was showed that the dominant types of phytoplankton belong to class Bacillariophyceae , followed Cyanophyceae , then Chlorophyceae and last Euglenophyceae to all station and through all monthes . Al - Sharresh station was recored 44 species belong to 28 genus , and Al - Sendibad Island was recorded 54 species belong to 35 genus , while Al - Salehia station recorded 60 species belong to 37 genus , and Al - Ameia station was rcorded 35 species belong to 24 genus . The concentration of chlorophyll values were recorded in the four stations 0.12 - 2.65 , 0.21 - 3.10 , 0.31 - 3.89 , 0.11 - 10.2 ml/L. respectively, and the concentraions of heavy metals (Cu, Pb, Mn, Zn and Co) in phytoplankton were ranged betwen 11.55 - 48.26 , 18.84 - 97.22 , 139.80 - 659.01 , 77.14 - 477.36 and 43.55 - 216.02 µg/gm dry wet respectively. The biomass of aquatic plants were ranged between 5.35 - 199.52 , 34.45 - 465.77 , 22.90 - 98.23 gm/m2 for C. demersum , P. australis and B. monniera respectively. The concentration of heavy metals (Cu, Pb, Mn, Zn and Co) in C. demersum were 1.04 - 88.53 , 2.14 - 66.36 , 36.05 - 1466.04 , 56.56 - 197.14 and 23.07 - 216.75 µg/gm dry wet for the Cu, Pb , Mn, Zn and Co respectively, and in P. australis were 6.17 - 66.34 , 1.19 - 66.50 , 32.76 - 467.02 , 23.78 - 176.32 and 7.11 - 98.11 µg/gm dry wet respectively , while in B. monniera were 0.44 - 56.15 , 0.81 - 67.04 , 12.56 - 99.15 , 33.34 - 116.55 and 0.04 - 10.44 µg/gm dry wet respectively. Averges of BCF in the C. demersum were 2.03 , 1.22 , 35.00 , 1.25 and 0.72 for Cu, Pb , Mn, Zn and Co respectively , while in P. australis were 1.60 , 1.05 , 14.36 , 0.83 and 0.36 respectively , and in B. monniera were 0.57 , 0.92 , 4.47 , 0.71 and 0.01 for heavy metals respectively , and in the phytoplankton the ranges were 3.08 , 2.58 , 79.51 , 1.29 , 0.57 respectively. The results showed that the aquatic plant C. demersum was most concentration for heavy metals and Mn was more accumulation , and showed that phytoplankton was more accumulation to heavy metals than aquatic plants.

بعض الاستجابات الفسلجية لتغير الملوحة في سمكة البلطي الازرقOreochromis aureus (Steindacher, 1864) == Some Physiological Responses of Blue Tilapia Oreochromis aureus (Steindacher,1864) to Salinity Changes

Author name: رافع عبد الكريم فارس
Supervisor name: سمية محمد احمد
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: Tilapia (Oreochromis aureus) was used to investigate the effect of salinity on Osmoregulation and growth. One hundred ninety fish were collected from Al - Sweeb River / Qurna. Acclimation on laboratory conditions was done for 24 days. The abrupt salinity transfer experiment was done using the following salinities : 1.5, 5,10,15,20,25 and 30 g/l during 96 h. Survival rate was calculated and reached to 90% in salinity 20 g/l , while it decrease to 0% in salinity 25 g/l. LC50 was calculated and was 20.44 g/l. Gradual salinity increase was conducted and was shown that survival rate increased to 80% in salinity 30 g/l, while it was 0% in salinity 35 g/l. Growth experiment was conducted for 120 days using the following salinities : 1.5, 5,12g/l. the results showed that food intake decrease to 18%, 37%, 43% with increasing salinity to 5, 12 and 20 g/l (respectively) comparing with the control. The role of gut and muscles in water and ionic regulation, chloride cell aggregation in gills and operculum, oxygen consumption rate, energy usage was also studied during salinity acclimation.The results showed that water content decreased in the muscles to 80.1%, 79.58% during salinity increasing to 5 and 12g/l (respectively) comparing with the control. While the water content in the gut increased to 90.4% and 91.44% with increasing salinity to 5 and 12 g/l (respectively) comparing with the control (83.05%). Ionic content also affected with increasing salinity to 5 and 12 g/l , as Na+ concentration in the muscles increased to 30.33, 38.18 m Mol /kg tissue water (respectively) comparing with the control (19.14 m Mol/kg tissue water). While in the gut, Na+ increased to 34.02 and 42.26 m Mol/kg tissue water (respectively) comparing with the control (18.04 m Mol/kg tissue water). K+ concentration in the muscles also increased to 59.23 and 60.23 m Mol/kg tissue water when salinity increased to 5 and 12 g/l (respectively) comparing with the control (49.3 m Mol/kg tissue water). While in the gut ,K+ concentration increased to 68.61 m Mol/kg tissue water with increasing salinity to 5 g/l and decreased to 57.30 m Mol/kg tissue water in salinity 12 g/l ,comparing with the control.bWith increasing salinity, the percentage of chloride cells in the gill epithelia increased to 7.5% and 9.39% with increasing salinity to 5 and 12 g/l (respectively) comparing with the control (5.7%). In the Opercular epithelia the percentage of chloride cells also increased to 3.33% and 4.04% with increasing salinity to 5 and 12g/l (respectively) comparing with the control (3.07%).After 24 hours of salinity increasing to 5, 12 and 20 g/l, the rate and percentage of oxygen consumption increase to 267.71 mg/kg/h (17%), 306.38 mg/kg/h (34%) and 404.21 mg/kg/h (77%) (Respectively), comparing with the control (228.57 mg/kg/l). The increase in oxygen consumption rate was coincide with increasing in the rate and percentage of energy usage to 0.90 Kcal/kg/h (16%), 1.03 kcal/kg/h (33%) and 1.36 Kcal/kg/h (77%) with increasing salinity to 5, 12 and 20 g/l (respectively) comparing with the control (0.77 Kcal/kg/h).Food intake after four days of increasing salinity decreased to 2.27, 1.73 and 1.58 g/100 g fish when salinity increase to 5, 12 and 20 g/l, comparing with the control (2.76 g/ 100 g fish ).The results of the growth experiment after 120 days of transfer to higher salinities (5 and 12 g/l) showed that the growth rate was affected largely with salinity and temperature, as the weight of fish declined during the first 10 weeks when water temperature was ranged between 24 - 30o c , while significant increase in fish weight was recorded with increasing water temperature to above 30o c.The results of chemical compositions of the whole body at the end of the growth experiment showed a decrease in the fat and protein content with increasing salinity. This may be explained as the fish depend on body storage of protein and fat as

علاقة بعض الخصائص البيئية بطبيعة غذاء اسماك الشلك Leuciscus vorax والحمري Carasobarbus luteus والجري Silurus triostegus في النهايات السفلى لنهر الفرات == Relation of some ecological characteristics with food habits of three fish species (Leuciscus vorax; Carasobarbus luteus and Silurus triostegus (at lower reaches of Euphrates River

Author name: خلود عبد علي حسن المنسي
Supervisor name: صادق علي حسين | جبار خطار عبد الحسن
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: انجزت دراسة بيئية وحياتية على اساس شهري للمدة من كانون الاول 2013 الى تشرين الثاني 2014. وتهدف لدراسة العادات الغذائية لثلاثة انواع من الاسماك متواجدة في القاطع الجنوبي من نهر الفرات وهي الجري Silurus triostegusوالشلك Aspius (Leuciscus) vorax والحمري Barbus (Carassobarbus) luteus عند منطقة المدينة ضمن خط عرض"53 .41 ′57°30 شمال "18.81′°47 عرضا. لمعرفة مدى تاثير بعض العوامل البيئية اللاحياتية على هذه الخاصية الحياتية المهمة. واعتمدت ثلاث طرق لتحليل مكونات الغذاء المتناول من قبل الانواع الثلاثة وهي الطريقة الحجمية volumetric والطريقة العددية numerical وطريقة تكرار الوجودfrequency of occurrence. وكانت اعلى قيمة لدرجة حرارة الماء 33م˚ واوطئها 10.5م˚ اما قيم نفاذ الضوء فتباينت اذ كانت اعلى القيم 67 سم وادناها 15 سم. وكانت اعلى القيم للاس الهيدروجيني 8.6 وادناها 7.7. وتراوحت الملوحة بين1.4 و2.8 جزء بالالف. وحسب التوزيع التكراري للاطوال والاوزان للمصيد لانواع الدراسة الثلاث وحسبت نسب المساهمة الشهرية للانواع والاحجام. اذ اصطيد اصغر فرد لسمكة الجري بطول كلي 340 ملم ووزن كلي 238غم في شباط واب وتشرين الاول. واكبر فرد في تموز وكان طوله الكلي850 ملم ووزنه 3675غم. واستحصلت اصغر سمكة شلك في حزيران وكان طولها الكلي 110ملم ووزنها الكلي8 غم واكبر سمكة455 ملم اصطيدت في كانون الثاني وكان وزنها 1064غم. واستحصل اصغر فرد من سمكة الحمري في نيسان بطول 65 ملم ووزنه 5غم واصطيد اكبر فرد (280 ملم) في تموز ووزنه257غم. حسبت التغيرات الشهرية في نشاط التغذية وشدة التغذية لانواع الدراسة وكانت اعلاها خلال اشهر الربيع والصيف وادناها في اشهر الشتاء اذ كان اعلى نشاط في ( ايار) للجري والشلك اما للحمري فكان في نيسان وايار وحزيران. وكانت اعلى درجة لشدة التغذية في حزيران للجري والشلك اما للحمري فسجلت في تشرين الاول. وسجلت اعلى النسب للمعد الفارغة في اشهر الشتاء وادناها في الصيف والربيع. اذ وجد ان هناك علاقة طردية بين درجات حرارة الماء ودليل الامتلاء ونشاط التغذية للانواع الثلاثة. واظهرت النتائج استمرار الانواع في التغذي على مدار العام بالرغم من تدني كمياتها مع انخفاض درجات الحرارة. وحللت محتويات المعد باستخدام طرق التحليل الثلاث الحجمية والعددية وتكرار الوجود ولتجاوز مساوئ كل طريقة تحليل اعتمد دليل الاهمية النسبي للغذاء المتناول للانواع الثلاثة فكانت الاسماك هي الاعلى اهمية في غذاء الجري فتراوحت نسبها بين 97 - 100% تلتها القشريات والنباتات المائية. وجاءت الاسماك بالمقدمة كذلك في غذاء الشلك فتراوحت نسبها بين 74.9 - 99.6% تلتها القشريات والحشرات، اما النواعم فكانت ضئيلة الاهمية. وكانت النباتات هي الاكثر اهمية في غذاء الحمري (49.3 - 99%), جاءت بعدها القشريات والحشرات المائية ( 0 - 20.2%)، تلتها النواعم (0 - 16.3%), والاسماك (0 - 10.1%)، والطحالب (0 - 5.7%). واظهرت النتائج ان سمكة الجري مفترسة تتغذى بشكل رئيس على الاسماك والقشريات. اما الشلك كان لحمي التغذية لكنه اكثر تنوع في المحتويات الغذائية اذ احتوت القناة الهضمية على الاسماك والقشريات والنواعم والحشرات المائية. واستنتجت الدراسة ان اسماك الحمري قارته اعتمدت في غذائها على ست مكونات غذائية وجاءت النباتات المائية بالمقدمة تلتها باقي المكونات من طحالب وحشرات مائية وقشريات ونواعم واسماك لكنها تميل بالاساس الى الغذاء النباتي اكثر من ذو المصدر الحيواني. وتناولت الدراسة اختلاف طبيعة التغذية في الاحجام المختلفة من انواع الدراسة وانتخب حجمين للجري اكثر من 450 ملم ودون 450 ملم وحجمين للشلك والحمري اكثر من 200 ملم ودون 200 ملم. اظهرت النتائج تباين طفيف بين المكونات الغذائية للاحجام المختلفة لانواع الاسماك الثلاث خلال اشهر الدراسة. وبينت الدراسة وجود تداخل غذائي بين نوعي الاسماك لحمية التغذية (الجري والشلك) اذ بلغ (0.88). وكان التداخل الغذائي ضعيف ومتماثل بين اسماك الجري والحمري(0.2) واسماك الشلك والحمري( 0.2). | An ecolo - biological study was accomplished on a monthly basis for the period from December 2013 to November 2014. It aims to study the food habits of three fish species coexisting in the southern sector of the Euphrates River, namely the cat fish (jerry) Siluru striostegus, cyprind fishes (shilling) Aspius vorax and (himri) Barbus luteus within an area at Mudayna district situated between the latitude of " 53 . 41 '57 ° 30 North " and 18.81' ° 47 south . The study aimed to find out the extent of the impact of some abiotic environmental factors on this vital biological aspect . Three analytical methods was adopted to analyze food components ingested by the three investigated species, i.e. volumetric, numerical and frequency of occurrence methods.The highest value of water temperature was 33˚ C and the lowest ( 10.5 c˚ ). Light penetration varied among periods as the highest of 67 cm and a minimum of 15 cm . The highest pH value was 8.6 and the lowest 7.7 . Salinity ranged between 1.4 and 2.8 ppt . Lengths and weights frequency distributions of the catch of the three investigated species were also their calculated and monthly contribution of species and sizes were calculated. The youngest individual of jerry was of 340 mm total length (T.L) and a total weight (T.W) of 238g collected in February, August and October.The largest encountered in July with total length of 850 mm and a weight of 3675 g.The smallest shillig specimens was obtained in June of 110 mm T.L and of 8 g T.W. and the biggest of 455 mmT.L collected in January and was weighing 1064 g . The youngest member of himri ( 65 mm, 5 g) encountered in April, while the largest ( 280 mm, 257 g) collected in July . monthly changes in feeding activity and feeding intensity of the studied species were calculated, the highest recorded during the spring and summer months and the lowest in the winter. The highest activity, however, was in May for jerry and shillig, whereas for himri was in April, May and June . The highest degree of food intensity for jerry was in June and in October for shillig and himri.The highest percentages of empty stomachs was recorded in the winter months and the lowest in summer and spring. It was found that there is a correlation between water temperatures (jerry : r=0.301, shilling : r=0.111, himri : r=0.397) and fullness index and feeding activity of the three species. Results showed the continuation of the species in feeding throughout the year in spite of the decline in the food quantity with low temperatures. Stomachs contents were investigated by using the three methods of analyses. volumetric, numerical and the frequency of occurrence in order to overcome the disadvantages of each method. Index of relative importance was adopted to calculate the relative importance of each food item of the three species. Fish were of the highest importance food item in the diet of jerry which ranged between (97 - 100%) and followed by crustaceans and aquatic plants. Fishes also came first in shilling diet ranged between 74.9 - 99.6% followed by crustaceans and insects, while mollusca was insignificant in the diet.Aquatic plants were of the most importance in himri diet (49.3 - 99%) followed by crustaceans and aquatic insects (18 - 20 %) mollusca (0 - 16.3%) fish (0 - 10.1%) and algae (0 - 5.7%) . Results showed that jerry was a predator feeding mainly on fish and crustaceans. whereas shillig was carnivore but it's diet was more diverse as its alimentary canal contained fish, crustaceans, aquatic insects mollusca. The study also concluded that himri was omnivore as relied on six food components where aquatic plants came first, followed by the rest of the categories, namely algae, aquatic insects, crustaceans, fish and molluscs, but they tend mainly to consume vegetation more than diet of animal source.The study also examined the difference in food habits nature of various sizes of the studied species.Two sizes were elected for jerry i.e. of more than 450 mm and less than 450 mm. Two sizes of shillig and himri were also chosen, namely more than 200 mm and below 200 mm . Results showed a slight discrepancy infood items among the different sizes of the investigated species of fish. The study showed diet overlap between the two carnivore species ( jerry and shillig ) , amounting to ( 0.88 ) . Diet overlap was low and symmetric between jerry and himri (0.2 ) on one hand and shillig and himri (0.2 )on the other

ستراتيجية تكاثر نوعين من الاسماك الغضروفية في المياه البحرية العراقية == Reproductive strategy of two cartilaginous species from Iraqi marine water

Author name: جنان حسن جاسم اللامي
Supervisor name: ساجد سعد حسن النور | امجد كاظم رسن
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: Investigation of the reproductive strategies of Arabian carpetshark Chiloscyllium arabicum (Gubanov, 1980) and Arabian whipray Himantura randalli (Last, Manjaji - Matsumoto et Moor, 2012) were conducted in Iraqi marine water from January, 2014 to December, 2014. A total of 365 Arabian carpetshark (200 female and 165 male) with total length ranged from 141 - 750 mm and 321 Arabian whipray (176 female and 145 male) with disk width ranged from 70 - 429 mm were cached. Trawling nets of Bahith Ship (owned by Marine Science Center) or other fishing boats were used to cached these fishes.Sex ratios of these fishes were investigated during study period. The cycle of gonad maturation was followed - up throughout the period of investigation by defining stages based on colour, shape and size of gonads. Fecundity was estimated and spawning period detected depending on gonado somatic index (GSI), hepato somatic index (HIS), histological study and sonar inspection.The length frequency distribution of Arabian carpetshark was dominated by group of 300 - 399 mm that appeared in all months except October. Smallest fish (142 mm, 20 g) was during October and biggest fish (750 mm, 1668.5 g) during June. The length - weight relationship was represented by the following equations : Male W= 0.000007 ×L 2.88Female W= 0.000005 × L 2.93 Both Sex W= 0.000006 × L 2.91Values of HSI was differ depending on the maturing conditions of males and females, where highest value (11.906) of HSI for females was recorded at October and lowest value (6.908) was recorded at June, while highest value (12.5) of HSI for males recorded at January and lowest value (9.14) recorded at March. There were negative correlation between oil ratioof liver and maturing condition of females, while in males this relation was not clear.Distinguishing of sex was carried out according to presence or absence of claspers. Smallest matured female was 421 ml in total length and 785.23 g in weight, while smallest matured male was 401 in total length and 693.14 in weight. Females were dominant on males during all months except February, August and November with equal sex ratio during March, while overall sex ratio was 1 : 1.26 toward females.The cycle of gonad maturation was divided into three stages : immature, maturing and mature for males and females. Linear relationship was found between total length (TL) and clasper length (x) and it was represented by following equation : TL=211.3479 + 0.013883 x X, with significant (P<0.05) correlation (r= 0.899) between them.The GSI values were different during study period, where highest values (8.84 and 7.93) for females recorded during April and May respectively and lowest value (0.73) during June, while highest value (6.74) for males recorded during March and lowest value (0.66) during May. Monthly differences in GSI especially for females refers that spawning period extended from May to June. This result supported by the results of frequency occurrence of germ cells. Results appeared that ovary of Arabian carpetshark contain 44 - 52 eggs with diameters between 22 - 48 mm. Depending on histological inspection of gonads, spermatocytes cells for males are divided into eight maturing stages, while spermatocytes cells for females into four maturing stages.Disk width (DW) frequency showed fife groups for Arabian whipray with dominant of 300 - 399 mm group that appeared in all months except October, while group of 200 - 299 mm was appeared in all months. Group of0 - 99 mm appeared in July and August, so it was concluded that reproduction occurred in July. Smallest fish (70 mm, 20 g) was cached during July and biggest fish (490 mm, 3834 g) was cached during June. Relationships between disk width and weight were as follow : Male W= 0.00031 x DW2.59 Female W= 0.0031 x DW2.31 Both Sex W= 0.0006 x W2.4HSI differed according to maturing conditions of males and females, where highest value (11.85) for females recorded during January and lowest value (6.04) recorded during June, while highest value (11.66) for males recorded during November and lowest value (7.48) recorded at March. There were negative correlations between gonad weight and liver weight of females and also between oil ratio of liver and maturing condition of females.Smallest matured female was 115 ml in disk width and 1936 g in weight, while smallest matured male was 355 in disk width and 1249 g in weight. Sex ratio was differ from the ratio of 1 : 1 during different months and at reproduction period the ratio of females was 64.5% and of males 35.5%, while the ratio was 50% for each sex after reproduction period at August. Females were dominant on males during all months except September and December and overall sex ratio was 1 : 1.26 toward females.Maturing cycle were divided into three stages : immature, maturing and mature for males and females. For males the dividing depending on morphological characteristics (length, size and colour) of claspers. Linear relationship was found between disk width and clasper length (x) and it was represented by following equation : DW=92.4133 +0.2233 x X .GSI showed differences throughout study period for both sexes. The highest value (8.63) for females recorded during June and lowest value (0.81) during July, while highest value (7.59) for males recorded duringJanuary and lowest value (0.97) during March. It was concluded, according to GSI especially for females, that birthing occurred between June and July.Number of eggs in the Arabian whipray ovary was ranged between 10 - 35 eggs and diameters between 5 - 28 mm, while the uterus contain 2 - 5 embryos that surrounded by strong covers and there wasn’t any placenta intelligence between embryos and female, so this fish considered as Ovoviviparous. Depending on histological inspections of gonads, spermatocytes were divided into seven maturing stages, while oocytes into four maturing stages.

دراسة تركيبة تجمع الاسماك في كرمة علي جنوب العراق == Study of Fish Assemblage Structure in the Garmat Ali River, South Iraq

Author name: انتصار كامل حميد
Supervisor name: عبد الرزاق محمود محمد | كاظم حسن يونس
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: The present study describes the composition of fish assemblage of the Garmat Ali River by adopting the ecological indices, and focusing on the changes in the structure of fish assemblage and the environmental factors. The ecological status of the river was evaluated by applying water quality index (CCME - WQI) and fish integrated biological index (F - IBI).Water and fish samples were collected on monthly basis, from the three stations during the period from November 2015 to October 2016.The study showed that air temperature ranged from 17.3ºC in December to 35.7 ºC in September, water temperature varied from 14.3 ºC in December to 32.7 ºC in September, transparency fluctuated from 17.7cm in July to 55.0cm in January, salinity ranged between1.5‰ in June to 6.0‰ in December and the pH varied from 7.2 in August to 8.3 in November. Water quality index of the river was classified as marginal (WQI= 49.5%). A total 34 fish species belonging to 26 genus and 16 families were caught using seine net, fixed gill net and electro - fishing, all species belong to Osteichthyes. Cyprinidae is a dominant family represented by seven species.The number of species caught was 9 in January and 25 in May. The fish fauna consisted of 18 marine, eight native and eight exotic species. The resident species consisted of 14 species, three species seasonal and 17 species occasional. Poecilia latipinna was the most abundant species numerically and in weight comprising 57.66% and 35.45%, respectively, followed by Tenualosa ilisha (15.29%, 22.38%). The third position in number was occupied with Thryssa whiteheadi (7.96%), but Carassius auratus in weight (10.16%). The dominance value (D3) for the more three abundant species in number (P. latipinna, T. ilisha and T. whiteheadi) was 80.91%, while in weight was 67.99% for P. latipinna, T. ilisha and C. auratus.The overall numerical diversity index ranged from 0.47 in February to 1.66 in October, but the weight diversity index ranged between 0.79 in February and 2.05 in April. The overall numerical evenness index varied from 0.23 in February and 0.63 in October, andthe weight evenness ranged between 0.37 in February and 0.73 in November. The overall richness index ranged from 1.05 in February to 2.26 in April.Associations between the numbers of species and individuals of fish and the environmental variables were clarified by using canonical correspondence analysis (CCA). The analysis was indicated that T.whiteheadi, T. vetrirostris, Coptodon zilli , Oreochromis aureus C. auratus and T. ilisha have been associated with water temperature, and P. latipinna has been associated with salinity.Cluster analysis reveals five main groups according to the Jaccared similarity index and three major groups according to Schooner' s similarity index. The integrated biological index (IBI) scores were calculated from 15 separate assemblage metrics based on the fish species richness, species composition and trophic guilds. The ecological status of the river was found to be impaired (F - IBI=46.5%).The study shows that the deterioration of the water quality of the Garmat Ali River during the last years, which reflects the deterioration of the water quality of both Shatt Al - Arab and East Hammar marsh, has affected on the composition of fish assemblage of the river fish in terms of the decrease in the number of native or endemic species and the increase in the numbers of marine and exotic species. This is confirmed by the value of F - IBI, which reflect the state of the ecological disturbance of the river.

كفاءة نبات البردي Pers. Typha domingensis والطحالب الملتصقة به في تحسين نوعية المياه في الجزء الجنوبي الشرقي من هور الحمار == Efficiency of Typha domingensis Pers. and Epiphytic algae for improving the water quality in South east Al - Hammar marsh

Author name: ازهار مكي نزال
Supervisor name: ازهار علي عبد الله الصابونجي | جبار خطار عبد الحسن
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: This study was conducted to evaluate the efficiency of aquatic plant Typha domingensis pers. and epipytic algae in improving the quality of water in South east Al - Hammar marsh. Four Stations were Selected , the first two stations are (AL - Mndhuri and AL - Daoudi) due to their location near and lack of vegetation, while the third and fourth stations Al - Zerki and AL - Burgah were selected Depending on the presence of high density of aquatic plants which dominated by T. domingensis , These are Al - Zerki and AL - Burgah. Water, aquatic plant and sediments samples were collected monthly from the selected stations from December 2014 until November 2015. Physical, Chemical and biological variables were measured, Air temperature was between (12.5 - 46.7)C◦ in Dec. and Aug. respectively, water temperature ranged between (11.2 - 42. 4) C◦ in Dec. and Aug. respectively, Salinity concentration ranged between (2.57) ‰ in Feb. and(6.59) ‰ in Sep. , Transparency at ranged between (42) cm in Jun and(74)cm in Dec. , Current velocity ranged between (0.26) m/sce in Feb. and( 0.59) m/sce in Aug. , pH was range between (5.7) in Jul. to(8.4) in Nov. , Dissolved oxygen ranged between (5.64) mg/l in May and(10.72) mg/l in Dec. , while the Biological Oxygen Demand was ranged between (0.72) mg/l in Nov. and(3.71) mg/l in Aug. , nitrate ranged between (2.61) μg/l in Apr. and(12.81) μg/l in Aug. ,while the reactive phosphate ranged from (0.27) μg/l in Sep. and( 0.93) μg/l in Aug. ,Total phosphorus ranged between (0.76) μg atom P/l in Jun and Oct. and(1.68) μg atom P/l in Aug. ,Chlorophyll a in water was ranged value between (4.11) μg/l in Feb. and(19.6 ) μg/l in Sep. ,Coliform of the study area at the ranged between (129) cell/100 ml in Nov. and(1800) cell/100 ml in Aug..Percentage of total nitrogen and total phosphate were determined in T.domingenesis, which collected from Al - Zerki and Al - Burgah stations, results showed that the Total nitrogen content of the aquatic plant which ranged between (1.02)% in Feb. and (2.89 (% in Sep. ,While the content of the aquatic plant of total phosphorus was ranged between(0.2)% in Feb. and (0.83)% in Sep. .As well as determined the Lead and Cadmium elements , as a dissolved part in water and exchangeable part in the sediments, as well as content in T.domingenesis. The concentrations of lead as dissolved part in water rangedBbetween( ( 0.86 μg/l in Jul. and ( 3.1 ) μg/l in Apr. , and in the exchangeable part of the sediment between ( 0.78 ) μg/g in Aug. and ( 2.41 ) μg/g in Apr. , while the content in T. domingenesis ranged between ( 0.38 ) μg/g dry weight in Jan. and ( 0.71 ) μg/g dry weight in Aug. ,Whereas cadmium as dissolved part in water ranged between ( 1.0 ) μg/l in Nov. and ( 2.8 ) μg/l in Apr. ,while in the exchangeable part of the sediment ranged between (0.6) μg/g in Apr. and (2.0) μg/g in Mar. ,and ranged in the T. domingenesis between (0. 3) μg/g dry weight in Jan. and(0.6) μg/g dry weight in Aug. ,The value of organic carbon in sediments ranged between (0.162)% in Nov. and(0.458)% in Jul. .Carlson Trophic State (CTSI) Index were used, based on three variables, namely chlorophyll - a - , total phosphorus and transparency to assess the nutritional status according to the primary productivity, Al - Mndhuri and Al - Daoudi stations were evaluated to be mesotrophic category values ranged between (41.42 - 46.68) for Al - Mndhuri station and between (45.63 - 40.44) for Al - Daoudi station during the months of August and October respectively. while Al - Zerki station were ranged between (42.55) during August which classified as mesotrophic, and 38.69 in February which classified as oligotrophic, AL - Burgah station were evaluated as oligotrophic and values ranged from 39.45 during January and 25.6 during October. The rate of trophic state index were 43.14 , 42.68 , 40.24 and 32.24 for four stations, respectively. Study areas marsh were classified as mesotrophic (39.57).Organic pollution index were measured depending on three variables, namely nitrates, phosphorus and biological oxygen demand to determine the levels of organic pollution for study stations, and to assess the general level of the study area, The values ranged (43.91 - 82.68) at Al - Mndhuri station during the months of May and August, while ranged between (37.65 - 75.76) during the months of November and August for the Al Daoudi station, and values for Al - Zerki station were ranged between (27.88 - 52.51) during the months of October and August respectively, while at AL - Burgah station were (24.60 - 39.22) during September and February.Al - Mndhuri and Al - Daoudi stations were classified in general to be Deteriorated, While stations Al - Zerki and AL - Burgah were classified as Medium, with an annual rate (52.81, 50.29, 38.57, 32.17) for the four stations, respectively. The lower values at Al - Zerki and AL - Burgah stations wasCassociated with decline in values of different factor that used for measuring OPI due to the presence of aquatic plant with high density which acting as filters for water contributed to the improvement of the environmental situation of the study area.Two Laboratory experiments for Free surfaces system static and recycling was done, both of which had lasted for eleven days to compare the efficiency between Epiphytic algae, and T.domingenesis in removing nutrients, which included nitrates and phosphates as well as the reduction of biological oxygen demand. The percentages of removal were calculated for each two days, also the total percentages of removal were calculated at the end of the experiment.Results showed that Epiphytic algae have higher efficiency in removing of nitrates, phosphorus and in reduction biological oxygen demand. than T.domingenesis and at both systems static and recycling. The total percentages of removing nitrate , phosphate and reduction in biological oxygen demand by epiphytic algae were (60.0, 52.91,60.0)% respectively, at the static system, and (68.84, 57.61 , 68.91 )%, respectively, using recycling system, while the total percentages reduction using the aquatic plant for nitrate ,phosphate and biological - oxygen demand were (39.9, 21.42, 63.64)%, respectively, using static system, and ( 48.12, 31.42, 72.87)% respectively, using recycling system. The results showed that the reduction of nutrient by using recycling system is higher than a static system .

التركيب النوعي والموسمي لهائمات بعض الاسماك وعلاقاتها الغذائية في الجزء الشمالي من شط العرب == The Spatial and Seasonal composition of Some Ichthyoplankton and trophic relationships in north part of Shatt Al - Arab River

Author name: منى طه خضير العكيلي
Supervisor name: عبد الرزاق محمود محمد | سمية محمد احمد
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:
Abstract: درس التركيب النوعي والموسمي لبيوض الاسماك ويرقاتها في الجزء الشمالي من شط العرب، باعتماد الادلة البيئية للتنوع مع التركيز على العلاقات الغذائية بين انواع يرقات الاسماك وامكانية التداخل الغذائي فيما بينها. جمعت العينات للفترة من كانون الثاني 2008 والى حزيران 2009 ، اذ تم اختيار خمس محطات لجمع العينات. اعتمدت وسيلتان لجمع عينات بيوض الاسماك ويرقاتهواهي شباك الهائمات حجم فتحات الشباك 100 - 300 مايكرون واستخدام مربع خشبي (50 سم Χ 50 سم) لجمع النباتات المائية التي قد تتواجد عليها بيوض الاسماك ويرقاتها. تراوحـت درجة حرارة الماء في منطقة الدراسة بين 11.2 ºم خلال كانون الثاني و33 ºم خلال اب والملوحة بين 1.81 جزء بالالف خلال كانون الاول و3.3 جزء بالالف خلال اب، ونفاذية الضوء بين 20 سم خلال تموز و150 سم خلال كانون الثاني. جمعت 360 عينة هائمات سمكية بواقع 72 عينة لكل محطة وتضمنت العينات 7220 بيضة اسماك و7360 يرقة اسماك. صنفت البيوض الى ثلاث عوائل سمكية متمثلة بعائلة الشبوطيات Cyprinidae التي شملت بيوض الكارب الشائع Cyprinus carpio والكارب الذهبي Carassuis auratus وعائلة البياح Mugilidae التي ضمت نوعا״ واحدا״ وهو الخشني Liza abu وعائلة البطريخ Cyprinodontidae التي ضمت نوعا״ واحدا״ Aphanius sp. . سادت بيوض الخشني في محطة كرمة علي (1 ) والشلهة (3 ) والسندباد (4 ) وبيوض الكارب الذهبي والشائع في محطتين النجيبية (2 ) والجباسي(5). تواجدت بيوض الكارب الذهبي والشائع والخشني في اربعة اشهر (شباط - ايار) والبطريخ من نيسان الى تموز. سجل اذار ظهور اكبر عدد لبيوض الخشني والكارب الذهبي والشائع، بينما سجل اكبر ظهور ليرقات البطريخ في نيسان. صنفت اليرقات الى خمس عوائل، شملت عائلة الشبوطيات Cyprinidae يرقات الكارب الشائع C. carpio والكارب الذهبي C. auratus والسمنان الطويل A. mossulensis ، وعائلة البياح Mugilidae الخشني L. abu وعائلة البطريخ Cyprinodontidae ، اذ صنفت يرقاتها الى مستوى النوع Aphanius sp. . تمثلت عائلة الصابوغيات Clupeidae بيرقات الصبور Tenualosa ilisha وعائلة نصفية المنقار Hemiramphidae تمثلت بيرقات القمبرور Hemiramphus sp.. سادت يرقات الخشني على الانواع الاخرى في المحطات الخمسة، وجاءت يرقات الكارب الذهبي في المرتبة الثانية في المحطات 1 و2 و4، واحتلت يرقات البطريخ المرتبة الثانية في محطة 3 ويرقات الصبور في المرتبة الثانية لمحطة 5. ظهرت يرقات الصبور في ستة اشهر خلال السنة (اذار ونيسان وحزيران الى ايلول) وسجل اب ظهور اكبر عدد ليرقاتها في محطة 4، وظهرت يرقات البطريخ في خمسة اشهر (نيسان الى اب) وسجل نيسان ظهور اكبر عدد ليرقاتها في محطة 3. ظهرت يرقات الخشني والكارب الذهبي والشائع في اربعة اشهر (شباط الى ايار) وسجل اذار ظهور اكبر عدد ليرقاتهم عند المحطة 3 للخشني والكارب الذهبي وعند المحطة 1 للكارب الشائع. ظهرت يرقات القمبرور في اب عند المحطة 5. سجلت اعلى وفرة لبيوض الاسماك ويرقاتها تلك التي جمعت من على النباتات المائية مقارنة بتلك التي جمعت باستخدام شباك الهائمات، اذ دلت نتائج التحليل الاحصائي وجود فروقات معنوية بين المحطة 1 والمحطات 2 و3 و4 و5 في وفرة بيوض الاسماك ويرقاتها التي جمعت بواسطة شباك الهائمات، وبين المحطة 3 والمحطات 1 و2 و5 في وفرة يرقات الاسماك التي جمعت من على النباتات المائية. تم حساب ادلة التنوع ليرقات الاسماك. تراوح دليل التنوع H بين صفر - 1.068، ودليل التكافؤ J بين صفر - 0.884، وقيم دليل الغنى D بين صفر - 0.739. اظهر التحليل العنقودي ان اعلى تشابه في عدد انواع اليرقات بين المحطتين الثانية والثالثة، الثانية والرابعة، الثالثة والرابعة حسب دليل جاكارد. ووجد ان اعلى تشابه في العدد الكلي لليرقات كان بين المحطتين الاولى والخامسة حسب دليل شونر. اعتمدت في تحليل غذاء يرقات الاسماك طريقتان النقاط Points وتكرار الـتواجد Frequency of occurrence. لم تسجل يرقات بمعد فارغة اثناء الدراسة وهناك ارتفاع في شدة ونشاط التغذية. بين تحليل محتويات القناة الهضمية ان اليرقات غـير متخصصة فـي تغذيتها، شمل محتـوى القـناة الهضمية الهائمات الحيوانـية والنباتـية ( دايتومات، طحالب، فتات عضوي، مجذافية الاقدام بمراحل حياتها المختلفة، براغيث الماء وبيوض النواعم). تتغذى يرقات الكارب الذهبي والشائع على الدايتومات ويرقات السمنان الطويل والبطريخ والصبور على مجذافية الاقدام. لوحظ ان اعـلى قيـمة لـدليل التـنوع الغذائي ليرقات الخشني بلغ 1.731 وادناها ليرقات الكارب الشائع اذ بـلغ 0.762 . تباينت يرقات الاسماك في شدة التداخل الغذائي Diet overlap فيما بينها اعتمادا على طبيعة التغذية، وبلغت عدد التداخلات بين اليرقات تسع تداخلات معنوية، وتراوحت قيم التداخل المعنوي بين 67.10% و91.73%. بلغ اعلى تداخل غذائي (91.73 %) بين يرقات الكارب الشائع والذهبي. كان تاثير التداخل الغذائي قويا״ جدا״ بين يرقات السمنان الطويل والبطريخ (101.22) ولم يظهر تاثير للتداخل الغذائي بين يرقات الكارب الذهبي والشائع ويرقات كل من الصبور والبطريخ والسمنان الطويل. بينت الدراسة اهمية الجزء الشمالي من شط العرب ونهر كرمة علي كمنطقة تكاثر وحضانة لبعض الاسماك. | The present work has taken in consideration investigating the spatial and seasonal composition of fish eggs and larvae in north part of Shatt Al - Arab River during the period from January 2008 till June 2009. Five sampling stations were chosen. Ecological diversity indices were adopted, with a focus on the dietary relations among species of fish larvae and the possibility of dietary overlap within larvae. Two sampling methods were adopted to collect the samples, plankton nets with mesh sizes 100 - 300µm and a wooden quadrate to collect aquatic plants that may exist upon fish eggs and larvae. Water temperature of the studied area ranged form 11.2ºC in January to 33 ºC in August. Salinity ranged form 1.81‰ in December to 3.3‰ in August. Light penetration ranged from 20 cm in July to 150 cm in January. A total of 360 samples were collected, 72 samples from each station. These samples included 7220 fish eggs belonged to three families and 7360 fish larvae belonged to five fish families. The eggs were identified Cyprinidae included Cyprinus carpio and Carassuis auratus, Mugilidae (Liza abu) and Cyprinodontidae (Aphanius sp.). The eggs of L. abu were prevailed at stations 1,3 and 4, and the eggs of C. carpio and C. auratus at stations 2 and 5. The eggs of C. carpio , C. auratus and L. abu were presented in four months ( February - May), and Aphanius sp. from April to July with peak during April. The eggs of L. abu , C. carpio and C. auratus were most abundant during March. Larvae were classified into five families included. Cyprinidae, which included the larvae of C. carpio , C. auratus and A. mossulensis, whereas, Mugilidae included a single species ( L. abu), and Cyprinodontidae, where the larvae were classified to the species level Aphanius sp., Clupeidae represented by Tenualosa ilisha, and Hemiramphidae by Hemiramphus sp.. Larvae of L. abu prevailed on other species in the five stations, and the larvae of C. carpio came in second place in the stations 1,2 and 3. Larvae of Aphanius sp. Occupied second place in station 3 and the larvae of T. ilisha in the second place in station 5. Larvae of T. ilisha appeared during six months (March, April and June to August ) with peak during August in station 4, while the larvae of Aphanius sp occurred at five months (April to August), with peak during April in station 3. The larvae of L. abu , C. carpio and C. auratus occurred in four months ( March to May) , with peak in total number during March at station 3, for L. abu and C. auratus and at station 1 for C. carpio. Larvae of Hemiramphus sp. appeared in August at station 5. The abundance of fish eggs and larvae collected from aquatic plants more than provided by using plankton net, as indicated by the results of statistical analysis there were significant differences between station 1 and stations 2,3,4 and 5 in abundance of fish eggs and larvae which were collected by plankton net, and between station 3 and stations 1, 2 and 5 in the abundance of fish larvae collected from aquatic plant. The diversity index (H') for fish larvae ranged between 0 - 1.068, while the richness index (D) ranged between 0 - 0.884 and the evenness index (J) between 0 - 0.739. Cluster analysis show that the highest similarity in the number of fish larvae between station 2 and stations 3, 2 and stations 4, stations 3 and 4. The highest similarity in the total number fish larvae was found between stations 1 and 5, according the Schoener index. The diet analysis was assessed using points and frequency of occurrence methods. No empty larval stomach were recorded during the study period and there is a high feeding activity and feeding intensity. The result of analyzing stomach contents indicated that the fish larvae were generalized feeders, consumed diatom, algae, detritus, copepoda, daphnia and eggs of molluscs. The larvae of C. carpio and C. auratus feed on diatom, while A. mossulensis, Aphanius sp. and T. ilisha on copepoda. The diversity index of gut content ranged form 1.731 for L. abu to 0.762 for C. carpio. The fish larvae differ in intensity of diet overlap depending on the nature of nutrition, and nine significance diet overlaps between larvae were detected. The significance overlaps ranged form 67.10% to 91.73 %. The highest diet overlap (91.73%) between C. carpio and C. auratus. A very strong diet overlap (101.22) between A. mossulensis and Aphanius sp.. No diet overlap were detected between the larvae of C. carpio, C. auratus, T. ilisha, Aphanius sp and A. mossulensis. The study showed the importance of the northern part of the Shatt Al - Arab River as a breeding and nursery ground for some fish

الاستخدام الجزئي للطحلب Enteromorpha intestinalis والقشري Parhyale basrensis علائق صغار اسماك الكارب الشائع Cyprinus carpio L == Partial utilization of Alga Enteromorpha intestinalis and the Crustacean Parhyale basrensis in diets of young carp Cyprinus carpio L

Author name: علي عبد الامير كحطان البدران
Supervisor name: ازهار علي عبد الله الصابونجي | امنة علي هاشم
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:
Abstract: اجريت في الدراسة الحالية مجموعة من التجارب التغذوية خلال الفترة الممتدة من 28 اب ولغاية 10 تشرين الثاني 2007 لمعرفة امكانية استبدال مسحوق الاسماك جزئيا باستخدام مسحوق الطحلب Enteromorpha intestinalis ومسحوق القشري Parhyale basrensis في العلائق المغذاة لصغار اسماك الكارب الشائع Cyprinus carpio واختبار كفاءة هذه المصادر البديلة من خلال تاثيرها على معدل الزيادة الوزنية ومعدلات النمو النسبي والنوعي وكفاءة التحويل الغذائي وقيمة البروتين المنتج ونسبـــة كفاءة البروتين ومستوى الاشباع ومعدل التفريغ الغذائي وقابلية الهضم والتركيب الكيميائي للجسم .اشارت التحليلات الكيميائية لمسحوق القشري P. basrensis ومسحوق الطحلب E. intestinalis بان محتواهما من البروتين قد بلغ 38.05 % ، 21.97 % على التوالي .صنعت سبعة علائق وهي 3.B , 3.A , 2.B , 2.A , 1.B , 1.A , Control متساوية في محتواها من البروتين ( 39.69 + 0.17 % ) والطاقة ( 450.30 + 4.80 كيلو سعرة/100غم ) ومتباينة في مصدر البروتين , اذ استبدل مسحوق الاسماك في العليقتين 1.B , 1.A باستخدام مسحوق القشري P. basrensis بنسبة 25% ، 50% على التوالي ، واستبدل في العليقتين 2.B , 2.A باستخدام مسحوق الطحلب E. intestinalis بنسبة 25% ، 50% على التوالي ، كما استبدل مسحوق الاسماك في العليقتين 3.B , 3.A باستخدام خليط من مسحوقي القشري والطحلب وبنسبة 25% ، 50% على التوالي ايضا ، وقورنت علائق الاستبدال مع عليقة السيطرة Control الخالية من مصادر البروتين البديلة . تباينت معدلات الزيادة الوزنية الكلية ومعدلات النمو النسبي والنمو النوعي للاسماك المغذاة على علائق التجربة المختلفة حيث حققت العلائق 2.A , 1.A , Control اعلى معدلات الزيادة الوزنية ومعدلات النمو النسبي والنوعي والتي بلغت 24.65 ، 23.86 ، 23.51 غم و242.24 ، 223.38 ، 220.47 % و2.085 ، 1.988 ، 1.972 % غم/ يوم على التوالي ، في حين كانت اوطا القيم لها في عليقتي الاستبدال 3.B , 2.B اذ بلغت 16.69 ، 17.27 غم و161.39 ، 162.73 % و1.627 ، 1.636 % غم/ يوم على التوالي .سجلت عليقتي الاستبدال 3.A , 1.A تفوقا معنويا ( P < 0.05 ) على عليقة السيطرة وبقية علائق الاستبدال الاخرى في قيم كفاءة التحويل الغذائي ونسبة كفاءة البروتين وقيمة البروتين المنتج اذ بلغت لهاتين العليقتين 37.01 ، 35.31 % و0.95 ، 0.90 و13.17 ، 12.42 % على التوالي ، بينما تخلفت العليقتان 2.B , 3.B في قيم كفاءة التحويل الغذائي ونسبة كفاءة البروتين وقيمة البروتين المنتج حيث سجلتا 25.33 ، 26.82 % و0.63 ، 0.68 و9.20 ، 9.83 % على التوالي .حققت علائق الاستبدال بنسبة 25% ( 3.A , 2.A , 1.A ) افضل النتائج بالنسبة لمستوى الاشباع إذ بلغت قيم مستوى الاشباع للاسماك المغذاة على هذه العلائق 3.13 ، 3.90 ، 3.98 % على التوالي بالمقارنـــــة مع عليقة السيطرة التي ســـجلت مستوى اشــــباع بلغ 5.27 % وعلائق الاستبدال بنسبة 50% . تباينت قيم معدل التفريغ للاسماك المغذاة على علائق التجربة المختلفة اذ اظهرت النتائج ان عليقة السيطرة تليها عليقة الاستبدال 1.B قد حققتا اعلى معدلات التفريغ بالمقارنة ببقية علائق الاستبدال وقد بلغت قيم معدل التفريغ لهاتين العليقتين 0.0092 ، 0.0082 غم / ساعـــــة على التوالي ، في حين كانت اوطا قيمة لمعدل التفريغ 0.0031 غم / ساعة في عليقة الاستبدال 1.A التي اعطت افضل النتائج ، وفيما يتعلق بوقت ظهور الفضلات فقد سجلت علائق الاستبدال 3.B , 2.B , 2.A ابطواقت لظهور الفضلات الذي بلغ 4.38 ، 4.21 ، 4.05 ساعة على التوالي بالمقارنة مع بقية علائق التجربة ، بينما سجلت العليقتان 1.B , Control الوقت الاسرع لظهور الفضلات وقد بلغ 3.30 ، 3.39 ساعة على التوالي .تباينت قيم معاملات الهضم الظاهري الكلي ومعاملات الهضم الظاهري للعناصر الغذائية باختلاف علائق التجربة اذ تراوح معامل الهضم الظاهري الكلي ما بين اوطا قيمة له التي بلغت 57.66 % في عليقــة الاستبــــدال 3.B واعلى قيمة له التي بلغت 63.53 % في عليقة الاستبدال 2.A ، وقد حققت عليقة الاستبدال 1.A اعلى قيمة لمعامل هضم البروتين التي بلغت 81.14 % في حين سجلت عليقة الاستبدال 2.B اوطا قيمة لمعامل هضم البروتين اذ بلغت 74.96 % ، وسجلت عليقة الاستبدال 1.A اعلى قيمة لمعامل هضم الدهون التي بلغت 77.28 % بينما سجلت عليقة الاستبدال 3.B اقل قيمة لمعامل هضم الدهون اذ بلغت 69.60 % . وفيما يتعلق بالتحليل الكيميائي لاجسام الاسماك فقد اشارت نتائج الدراسة الى ترافق انخفاض نسبة الرطوبة مع ارتفاع نسبة الدهن في اجسام الاسماك المغذاة على مختلف العلائق ، ولم تظهر هنالك اي فروق معنوية ( P > 0.05 ) في محتوى جسم الاسماك من البروتين لجميع علائق التجربة حيث تراوحت قيم بروتين الجسم ما بين 13.26 % في اجسام الاسماك عند بداية التجربة الى 14.95 % في اجسام الاسماك المغذاة على عليقة الاستبدال 1.B ، وقد سجلت عليقة الاستبدال 1.A اعلى قيمة لمحتوى الدهن في جسم الاسماك فقد بلغت 6.44 % في حين كانت اوطا قيمة لها في اجسام الاسماك عند بداية التجربة حيث بلغت 2.81 % ، ولم يظهر التحليل الاحصائي وجود فروق معنوية ( P > 0.05 ) ما بين عليقة السيطرة وجميع علائق الاستبدال في محتوى جسم الاسماك من الرماد .يستنتج من الدراسة الحالية امكانية الاستبدال الجزئي لمسحوق الاسماك باستخدام مسحوق القشري ومسحوق الطحلب وخليط من المسحوقين وبنسبة استبدال 25% في علائق صغار اسماك الكارب الشائع Cyprinus carpio . | Nutritional experiments were conducted in the present study during 28 August until 10 November 2007 to knowledge the possibility of partially replacement of fish meal using algae meal Enteromorpha intestinalis and crustacean meal Parhyale basrensis in the diets of young Common carp Cyprinus carpio and test the efficiency of these alternative sources through its effects upon rates of weight increment , relative growth , specific growth , food conversion efficiency , productive protein value , protein efficiency ratio , satiation level , evacuation rate , digestibility and body chemical composition .The chemical analysis of crustacean meal P. basrensis and algae meal E. intestinalis showed that its protein contain were 38.05 , 21.97 % respectively .Seven diets were formulated : i.e. control , 1.A , 1.B , 2.A , 2.B , 3.A , 3.B the diets were isonitrogenous ( 39.69 + 0.17 % ) and isocaloric (450.30 + 4.80 kcal./100 gm ) but varied in protein source , where fish meal replaced in diets 1.A , 1.B with crustacean meal P. basrensis using 25 , 50 % respectively , and with algae meal E. intestinalis in diets 2.A , 2.B using 25 , 50 % respectively , Also it was replaced in diets 3.A , 3.B with a mixture of crustacean and algae meals using 25 , 50 % respectively , these replacement diets were compared with control diet which contain no alternative protein source .The average of total weight increment , relative growth and specific growth rates were varied of fish fed different experimental diets , where control , 1.A , 2.A diets achieved the highest values of weight increment rates , relative growth and specific growth rates that achieved 24.65 , 23.86 , 23.51 gm , 242.24 , 223.38 , 220.47 % and 2.085 , 1.988 , 1.972 % gm / day respectively , while the lowest values were recorded in the replacement diets 2.B , 3.B which recorded 16.69 , 17.27 gm , 161.39 , 162.73 % and 1.627 , 1.636 % gm / day respectively .The replacements diets 1.A , 3.A showed significant ( P < 0.05 ) compared to control and other replacement diets in FCE , PER and PPV which reached in these diets 37.01 , 35.31 % , 0.95 , 0.90 and 13.17 , 12.42 % respectively , while the 3.B , 2.B diets were backward in the values of FCE , PER and PPV which recorded 25.33 , 26.82 % , 0.63 , 0.68 and 9.20 , 9.83 % respectively .The replacement diets with the 25 % ( 1.A , 2.A , 3.A ) achieved the superior results concerning the satiation level where it values in fish fed these diets were 3.13 , 3.90 , 3.98 % respectively compared to control diet which recorded satiation level which was 5.27 % and replacement diets of 50 % .The values of evacuation rates in fish fed experimental diets were varied where the results showed that control diet followed by replacement diet 1.B achieved the highest values compared to other replacement diets where it values were 0.0092 , 0.0082 gm / h for these diets respectively , while the lowest values 0.0031 gm / h were recorded in replacement diet 1.A which showed the superior results , the time of feces appearance were recorded in replacement diets 2.A , 2.B , 3.B slower time 4.38 , 4.21 4.05 h respectively compared to other experiment diets , while the diets control , 1.B recorded the faster time of feces appearance 3.30 , 3.39 h respectively . The values of total and nutrients apparent digestibility coefficients varied in different experiments diets , where the total apparent digestibility coefficient ranged between the lowest value 57.66 % in replacement diet 3.B to the highest value 63.53 % in replacement diet 2.A , The replacement diet 1.A achieved the highest protein digestibility coefficient 81.14 % where replacement diet 2.B recorded the lowest value 74.96 % , The replacement diet 1.A recorded the highest fat digestibility 77.28 % while the replacement diet 3.B recorded the lowest value 69.60 % .The results of chemical composition of fish body showed the association of moisture decrease with fat increase in the fish body fed different diets , No significant ( P > 0.05 ) differences were recorded in protein content of fish body fed all diets , where protein content ranged between 13.26 % in fish body at the beginning of experiment to 14.95 % in fish body fed replacement diet 1.B , The replacement diet 1.A recorded the highest fat content in fish body reached 6.44 % while the lowest value recorded in fish body at the beginning of experiment 2.81 % , statistical analysis showed no significant ( P > 0.05 ) differences between control diet and all replacement diets in ash content of fish body .It was concluded from the present study the possibility of partially replacement of fish meal with crustacean and algae meals also with mixed meal from both , the replacement ratio was 25% in the diets of young Common carp Cyprinus carpio .

تاثير نوع الهرمون ومقدار الجرعة على مستوى هرمونات الجونادوتروبين (Gonadotropin hormones) في دم سمكة الكارب الشائع Cyprinus carpio L. == Submitted To The College Ofagriculture of The University of Basrah In Partial Fulfillment of The Requirements For The Degree of Doctor of Philosophy In Fisheries And Marine Resources (Fish Culture)

Author name: فالح موسى جعفر الزيدي
Supervisor name: ساجد سعد حسن النور | باسم محمد جاسم
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:
Abstract: The study included the utilization of three types of hormones, LHRH - A2 with dosages of 10, 20 and 30 ?g / kg, a mixture of LHRH - A2 with dosages of 10, 20, 30, 40 and 50 ?g / kg with Domperidone (DOM) at 5 ?g / kg and carp pituitary gland extract (CPE)

اكثار الروبيان ذي الارجل البيضاء Penaeus (=Ltiopenaeus) vannamei وتربيته في محافظة البصرة، العراق == Breeding and culturing of the white leg shrimp Penaeus (= Ltiopenaeus) vannamei in Basrah,Iraq.

Author name: عبد الحسين حاتم غازي
Supervisor name: ساجد سعد حسن النور | مالك حسن علي
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:

تاثير الاجهاد الملحي في استهلاك الطاقة للتنظيم الازموزي والنمو في اسماك الكارب العشبيCtenopharyngodon idella (Valenciennes,1844) والكارب الشائع Cyprinus carpio L. == The effect of salt stress on energy usage for osmoregulation and growth in grass carp Ctenopharyngodon idella(Valenciennes, 1844) and Common carp cyprinus carpio L.

Author name: رغـــــد شـــــبر جعــفـــــر
Supervisor name: سمية محمد احمد
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:

تاثير الاقلمة الملحية في بعض الجوانب الفسلجية والتغذوية في يافعات اسماك الشعم الفضيacanthopagrus Latus (Houttyn,1782) == Effect Salinity Acclimation on some Physiological and Nutritional aspects in Acanthopagrus latus (Houttyn, 1782) Juveniles.

Author name: فاطمة عبد الحسين محمد سلطان
Supervisor name: سمية محمد احمد
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:

دراسة بيئية وتصنيفية للعوالق في خور الزبير مع تقدير مستويات الهيدروكاربونات النفطية الكلية == ECOLOGICAL AND TAXANOMICAL STUDIES TO PLANKTONS IN KHOR AL - ZUBAIR LAGOON WITH DETERMINATION OF THE TOTAL PETROLEUM HYDROCARBONS LEVELS

Author name: عماد جاسم محمد الشاوي
Supervisor name: صادق علي حسين | عبد العزيز محمود عبد الله
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:

طفيليات بعض الاسماك العراقية من بيئتين مختلفتين بمستويات الاثراء الغذائي في مياه نهري كرمة علي والصالحية في البصرة - العراق == Parasites of some Iraqi fishes in two localities varied in their trophic levels in Inland water of Basrah

Author name: احمد منذر شاكر الجناعي
Supervisor name: ازهار علي عبد الله الصابونجي | نجم رجب خميس
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:

عمر ونمو اسماك البني Barbus Sharpeyi Gunther,1874 والحمري Barbus Luteus (Heckel, 1843) في هور السويب - جنوب العراق == Age and Growth of Bunni Barbus sharpeyi Gunther, 1874 and Hemri Barbus luteus (Heckel, 1843) In Swab Marsh - South of Iraq

Author name: وطفاء احمد جاسم المالكي
Supervisor name: ساجد سعد حسن النور
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:

انتشار الاصابة بطفيليات الاسماك في محافظة البصرة والتاثيرات المرضية للفطر Saprolegnia Sp. وحساسيته تجاه بعض المستخلصات النباتية == INFECTION DISTRIBUTION OF FISH PARASITES IN BASRAH PROVINCE AND PATHOLOGICAL EFFECTS OF Saprolegnia sp. AND ITS SUCEPTIBILITY TO SOME PLANT EXTRACTS

Author name: خالدة سالم خضير النعيم
Supervisor name: نجم رجب خميس | نادرة كاظم السالم
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:

مسح بيئي حياتي لبعض اعداء الاسماك في ثلاث مزارع سمكية في العراق

Author name: جاسم محسن عبد
Supervisor name: نادرة كاظم السالم | صادق علي حسين
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:

مراقبة مياه نهر شط العرب باستخدام النمذجة البيئية لنوعية المياه ودلائل الدايتومات القاعية

Author name: مجتبى عبد الوهاب طاهر العنكوش
Supervisor name: عادل يعقوب يوسف الحنظل | امنة علي هاشم
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:

تاثير كثافة الاستزراع ونسبة التغذية في نمو اسماك الكارب الشائع Cyprinus Carpio في الاقفاص العائمة، محافظة البصرة - جنوب العراق == Effects of stocking densities and feeding ratios on growth of common carp Cyprinus carpio cultivated in floating cages, Basrah - South Iraq

Author name: ماجد مكي طاهر
Supervisor name: عادل يعقوب يوسف الدبيكل | جاسم حميد صالح
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:

مسح بيئي لمياه الجزء الجنوبي من نهر الغراف جنوب العراق == Ecological survey for southern sector of Al - Garaf River, southern Iraq

Author name: كامل كاظم فهد
Supervisor name: صادق علي حسين
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:

تقييم هور شرق الحمار كمحمية طبيعية باستخدام الادلة البيئية == Environmental Assessment for the East Hammar marsh as A natural Reserve by using ecological index

Author name: فادية خالد راضي
Supervisor name: عبد الرزاق محمود محمد | ازهار علي الصابونجي
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:

تقييم وادارة مخزون اسماك الصبور Tenualosa Ilisha (Hamlton - Buchanan, 1822) في المياه البحرية العراقية

Author name: عدي محمد حسن قاسم
Supervisor name: عبد الرزاق محمود محمد
General topic: Agricultural sciences
Degree: Master
Language: Arabic
University location: Basrah
First pages:

دراسة بعض طفيليات اسماك الشانك Acanthopagrus Latus والعوامل المرضية لنوعين من روبيان البنايدي من المياه الساحلية العراقية == Study on some parasites of Acanthopagrus latus and disease agents of two penaeid shrimps from Iraqi coastal waters

Author name: عبد الامیر رحیم جاسم
Supervisor name: نادرة كاظم السالم
General topic: Agricultural sciences
Degree: Doctorate
Language: Arabic
University location: Basrah
First pages:
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