تاثير بعض العوامل البيئية في مجتمع الهائمات القشرية لنهر دجلة وجزيرة بغداد السياحية - العراق == The Effect of Some Environmental Factors In Crustaceans Plankton Community of The Tigris River And The Island of Baghdad Tourist - Iraq
Author name:
اعتدال فليح حسن العامري
Supervisor name:
صباح فرج عبد الاحد
General topic:
Biology
Specific topic:
Zoology - Invertebrates
Degree:
Master
University:
University of Baghdad - Ibn Al-Haytham College Of Education For Pure Sciences - Department Of Biology
Language:
Arabic
University location:
Baghdad
First pages:
24T2997 - p.pdf
Abstract:
The present study was conducted to investigate the effect of the water body type on the density of crustaceans zooplankton of the cortical Cladocera and two orders of copepod (Cyclopoida, Calanoida), addition to the physical and chemical effect of lake of Baghdad Tourist Island and Tigris river within the water of the lake near the site and electric and know the effect these characterties on density of crustaceans Zooplankton and for doing this study. We choose five places, tow on Tigris river and three places on the Island in AI - Fahhama in north of Baghdad The samples of water were collected every 15 days all these stations from beginning of December 2013 to May 2014. This study had corrected the temperature of air and water and the pH, electrical conductivity. and Dissolved oxygen, BOD5, NO?¯, PO?¯ and the density of Crastaceans Zooplankton. This study showed that the temperature of the air was nearly in the river and the lake and that because of their being in the same geographs area.The temperature was between (16°c - 34°c)in Tigris while it was (11.9°c - 33°c)in the lake Hydrogen Ions, it was (7.3 - 7.9) in the river and (8.18.8)in the lake because that were a lot of water plants and phytoplankton. This study shows that water of the river and the lake in the areas of study have a good of air and that was shown by recording the heigh values of oxygen. The values of dissolved oxygen (DO) was between (8.11 - 11.5) mg\L in river between (7.9111.37)mg\L in lake and showed from the study that the values were few. It was less than 5mg\L it was (0.33 - 2.6) mg\Lin the river and (0.64 - 3.55) mg\L in the lake. The values electrical conductivity of water in all the placed the study in the permissible range the water, it isn't over than 1500?s\cm. The electrical conductively records were between (851 - 1184) ?s\cm in the river, and it was (755 1270) ?s\cm in the lake. From the other hand nutrients, the phosphor records between (0.025 - 0.0563)mg\Lin the river and in the lake between(0.00310.0429)mg\L The Nitrate records its values highs in the month of winter because of the rain and it was increased in the river, it was (0.345 - 0.9135)mg\L compare with the lake, it was (0.028 - 0.626)mg\L in the places of the study that were appearance of two clear increases in the density of Zooplankton one was in winter and the other was spring.The density of zooplankton in the lake much more than it was in the river. The density of the zooplankton belong to Cladocera between (0.019 - 0.307) ind.\L in the lake and the density of the Calnoida was between (0.003 - 0.065)ind. \L in the river and (0.0078 - 3.37) ind. \L in the lake. The results shows differences if there are changes in places and month on most of physical and chemical biological characteristic the measured during the period of this study. The kind of water body effects on most characteristics and soon the density of crustaceans zooplankton.the results of the study mention the binding morale relation between the density of zooplankton the values of electrical conductivity and value of BOD(Biological Oxygen Demand) while there isn't any morale relation between the density of zooplankton and the value of Hydrogen Ion and Nitrate and dissolved oxygen that because the value of these changes was near to be equal in all the places that eayses the reduce of its effective on the average of density of these organism. The study shows that Baghdad lake have the environmental ingredients makes the lake natural protected to forming and breeding a fish in the lakes in addition that it is a place for Tourism.
