期刊名称：Advance Journal of Food Science and Technology
印刷版ISSN：2042-4868
电子版ISSN：2042-4876
出版年度：2020
卷号：18
期号：2
页码：27-34
DOI：10.19026/ajfst.18.6052
出版社：MAXWELL Science Publication
摘要：The present study aims at determining the length-weight relationship, sex ratio, relative weight, gonadosomatic indices and length at 50% maturation for the Indian mackerel, Rastrelliger kanagurta (Cuvier, 1817). A total of 791 specimens were collected from Salalah in the Dhofar region during the years 2007 to 2009. For both sexes, a common length-weight relationship was derived from the analysis, that is $W=0.00001×L^{3.4}$. It was found that the Omani Indian mackerel spawned during August to November and the lengths at 50% maturation were 271 mm for the combined sexes, 267.5 mm for the females and 277.5 mm for the males. The relative condition weight was positively proportion to the gonadosomatic index. The mean sex ratio for the entire fish sample of 0.56±0.1 was significantly different from the anticipated theoretical sex ratio of 0.5 $(X^2 = 8.77; ;df = 1; ;p<0.05)$.
关键词：Dhofar; Indian mackerel; Oman; Rastrelliger kanagurta; reproduction
