A study on Length-weight relationship and reproduction of Longnose Trevally (Carangoides chrysophrys(Cuvier, 1833)) in the waters of Hormozgan

The relationship of Length-weight and reproductive of the Longnose Trevally (Carangoides chrysophrys) were studied from March 2014 to February 2015. Monthly samples at 14 stations were collected using trawl fishing. In this study, the total number of samples was 376, which 194 were females and 137 males and 45 immature. The minimum and maximum total length during different months were between 25.5 and 80 cm respectively. Weight-length relationship for Longnose Trevally was W = 0/0064TL 2/9004. This fish had an isometric growth. LM50 for Longnose Trevally was 46 cm. Sex ratio(female : male) for Longnose Trevally was 1/42:1. The maximum absolute fecundity and relative fecundity was achieved 479992 Ovule in April and 385 in July Ovule per gram of body weight respectively. The minimum absolute fecundity and relative fecundity was achieved 98247 Ovule in November and 125 in July Ovule per gram of body weight respectively. GSI female monthly average was calculated . This fish has a long spawning season from January to May and spawning peak was observed in May.