Some aspects of ecological and biological in the Prussian carp Carassius auratus gibelio in Al-Baddah Dam,Thi-Qar Iraq.

K. Fahd, Kamel

	Some aspects of ecological and biological in the Prussian carp Carassius auratus gibelio in Al-Baddah Dam,Thi-Qar Iraq.
Thi-Qar University Journal for Agricultural Researches
Article 1, Volume 1, Issue 2222, 2012, Pages 259-269
Author
Kamel K. Fahd
Abstract
Sixity five specimens of Prussian carp (Carassius auratus gibelio) were Collected from Al-Baddah Dam for the period from January to March 2008. Monthly changes in physical and chemical properties of water were investigated. Abiotic characters, namely air and water temperatures, transparency, salinity, dissolved oxygen, carbon dioxide, pH, total alkalinity, total hardness, nitrite, nitrate and phosphate were measured on regular basis for six months. Measurements for captured fish included total length, total weight, cleaned weight, and gonad weight. Age was also determined. Air temperature ranged from 14o C in January and 16o C in June. Water temperature ranged from 12 oC in January and 35o C in June. light penetration ranged between 40-65 cm. The lowest values of salinity (1.53 ppt) were encountered in May, and the highest values ( 4.99 ppt) were in February. Dissolved oxygen showed a decline during the warm months (June), amounting to 8 mg/L. pH ranged between 6.7 and 7.8. Carbon dioxide values were fluctuating and was totally absent in January,the highest values were recorded in may,June (4 mg/L).
Keywords
Some aspects of ecological and biological in the Prussian carp Carassius auratus gibelio in Al; Baddah Dam; Thi; Qar Iraq; Carassius auratus gibelio

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