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BIOLOGICAL ASPECTS OF TWOBAR SEABREAM ACANTHOPAGRUS BIFASCIATUS (FORSSKÅL, 1775) IN WATER SURROUNDING SAMMALIAH ISLAND – ABU DHABI | ||
| Basrah Journal of Agricultural Sciences | ||
| Article 1, Volume 23, 2 (special Issue), 2010, Pages 45-60 PDF (0 K) | ||
| DOI: 10.33762/bagrs.2010.118321 | ||
| Author | ||
| Majid M. Taher | ||
| Abstract | ||
| A total of 346 fish of Acanthopagrus bifasciatus were collected from water surrounding Sammaliah Island during September 2001 to May 2004. Lengths and weights for all fish were taken and relationship equation was obtained. Age of fishes were determined depend on scales reading and found 10 age groups from 0-group to 9+ group. Fish growth was represent by von Bertalanffy equation as follow (Lt = 535 [1-e -0.1983(t+1.0828)]) and determine 535 mm as a maximum total length reached by this fish. Sex of 153 fish was determined and gonado somatic index was measured. It was found according to GSI and relative condition factor values that spawning period during January and February. Sex ratio was [females 93 (60.8%), males 12 (7.8%) and hermaphrodites 48 (31.4%)]. Food habits of 212 fish were studied. The main food for this fish is snails followed by crabs. It seems that feeding intensity and relative condition factor are higher during winter months than summer months. | ||
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