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Some Biological Aspects of Silurus triostegus (Heckel) in Al-Hilla River, Iraq | ||
| Basrah Journal of Agricultural Sciences | ||
| Article 11, Volume 26, 2 (special Issue), 2013, Pages 154-165 PDF (0 K) | ||
| DOI: 10.33762/bagrs.2013.111680 | ||
| Authors | ||
| Moayed J. Y. Al-Amari; Mayson S. Al-Taee; Kareem H. Rasheed | ||
| Abstract | ||
| The present study was conducted on Silurus triostegus in Al-Hilla River/middle of Iraq. Monthly samples were collected from September 2009 to August 2010 . 59 specimens were collected. The highest value of individuals was ( 88.31 )% in May , July and October and none in March. The total length of individuals ranged from 203 -654 mm and wet weight varied between 65.8 and 2024 gm. Length Weight relationship was calculated as S. triostegus n=59 R=0.946 logw= -4.654+2.819logL Gonadosomatic index (GSI) recorded highest value 7.22 for males and 3.88 for females in march . Five age groups were obtained, fishes of 3+ age group was dominant in total catch 33.9. It seems that the food nature of S. triostegus in Al-Hilla river was carnivours with dominance of fish. | ||
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