دراسة بيئية وتصنيفية للقواقع المائية في مدينة النجف الاشرف وبعض المؤشرات حول حكة السباحين == Taxonomic And Ecological Study of Aquatic Snails In The Al - Najaf Al - Ashraf City And Some Pointers About Swimmer’s Itch
Author name:
اسراء عبيد حسين الشبلي
Supervisor name:
جاسم حميد رحمة الخزاعي
General topic:
Biology
Specific topic:
Microbiology - Parasites
Degree:
Master
University:
University of Kufa - College Of Education For Girls - Department Of Biology
Language:
Arabic
University location:
Najaf
First pages:
24T2817 - p.pdf
Abstract:
اجريت الدراسة الحالية في محافظة النجف الاشرف تم جمع عينات القوقع من ثلاث محطات ( (منخفض بحر النجف وقضاء المشخاب والعباسية)) للفترة من 1 - 2 - 2013 لغاية 30 - 10 - 2013 وفحصت العينات في مختبر اللافقريات التابع لكلية التربية للبنات لغرض تشخيص الاطوار اليرقي | This study was conducted in Al - Najaf Al - Ashraf province and the samples were collected from Bahar Al - Najaf, Al - Mashkhab and Al - Abbasia, during the period 1/2/2013 untill 30/10/. The samples were in the laboratory of invertebrates in College of Education for Girls to diagnos the larva stages of Trematodes which parasitize on the aquatic snails with some of the indicators and observations about the causes of Swimmer’s itch disease. The lowest water temperature in AL - Abbasia water was 13?c in February while the highest temberature was recorded in Bahar Al - Najaf 30.4?c in August. The PH ranged between (7 - 8.5).The Electrical Conductivity recorded the lowest rate in February in Al - Abbasia 1.16 Microsimnez / cm and the highest rate in March in Bahar Al - Najaf 5.97 Microsimnez / cm and the salinity concentration was lowest the in February in Al - Abbasia 0.58 ppt, while the highest rate was recorded in March in the Bahar Al - Najaf (2.98) ppt and Turbidity was the lowest rate in Al - Mishkhab in October 2.8 Unit Turbidity nephlometric and the highest rate was in the AL - Abbasia in July (4.42) units Turbidity nephlometric while The Dissolved Oxygen recorded the lowest level in the Al - Abbasia 2 mg / L in August and the highest level in April in Al - Mishkhab 8.5 mg / L. The study showed the presence of five types of snails : Belamia bengalensis, Lymnae auricularia, Physa acuta, Melanopsis nodosa and Melanoides tuberculata. therefore, there are five species of snails in Bahar Al - Najaf while P.acuta was not recorded in Al - Abbasia and Al - Mashkhab in addition, the numbers of the snails varied according to the time, so the B.bengalensis and M.nodosa increased in June, July and August while L.auricularia and P.acuta and M.tuberculata snails increased during spring season. All snails that have been diagnosed were infected with (Miracidium, Sporocyst, Ridia and five types of Cercaria) stages.Also, the highest infection in the M.tuberculata was 36.3%, B.bengalensis 31.3%, M.nodosa 25.4%, L.auricularia 24 % while the snail P.acuta recorded lower infection rate at13.7%. The Results of the questionnaire revaled that the males infection in Swimmer’s itch was 76% higher than females.The highest infection was among (10 - 20 years) it reached 36%, and 39% in fishmen and aquatic birds which is the highest rate compared with others. The highest rate of infection was recorded in August (42 %) a large number of the patients exhibited symptoms of the disease after coming out of the water and dehydration reached 52%.The results showed that 75% of patients showed Symptoms of the Swimmer’s itch after (3 - 7days), also the hands and legs were more susceptible to infection 62 %, and the highest percentage of the S.dermatitis 86% wdetected in person swimming in Shallow water
