Abstract
Ecology and biology of Gattan Barbus xanthopterus (Heckel) in Euphrates river, middle of Iraq have been studied through a period from September 2002 to December 2003, water temperature has been shown lowest values (14.5 °c) in January, whereas, the highest values (39°c) was in August. Salinity concentration and water turbidity values ranged between 0.68 to 0.81 gm/L and 11 to 57 NTU respectively. Slight fluctuation in pH ranged between 7.2 to 8.1 with 7.7 mean value. Dissolved oxygen shown highest mean values ranged between 6.9 to 11.5 mg/L in summer and winter respectively. Variation values of gonado somatic index (GSI) recorded lowest ones in warmer months, whereas, the highest were in hot months. On the other hand, there is opposite relationships between GSI and relative condition a factor (Kn.) value. The results shown that Gattan was carnivorous with dominance of animal components consisted mainly of aquatic insects' oligochatea and molluses. which were, formed 78.09%.
Article Type
Article
How to Cite this Article
Al-Rediny, Abdul Motaleb Jaseem; Mohamed, Abd-Al-Razaq Mahmmod; and Abas, Loay Mohammed
(2006)
"Ecology and biology of Barbus xanthopterus (Heckel) in Euphrates river, middle of Iraq,"
Baghdad Science Journal: Vol. 3:
Iss.
4, Article 7.
DOI: https://doi.org/10.21123/bsj.2006.743
