نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه شیلات، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران
2 ایستگاه تحقیقات نرم تنان خلیج فارس، پژوهشکده اکولوژی خلیج فارس و دریای عمان، موسسه تحقیقات علوم شیلاتی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی. بندرلنگه، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The study was conducted to determine growth parameters, mortality, length-weight relationship and exploitation ratio of Saurida tumbil in Coastal Waters of Jask, Iran. Totally, 2336 specimen of S. tumbil were measured during 2015-2016. Length-Weight relationship was calculated as: W = 0.0055 TL3.07 According to the equation, growth of S. tumbil is isometric. Population parameters were estimated. The growth parameters of von Bertalanffy equation were estimated as, L∞: 65.5 and K: 0.74 and t0: -0.2. Mortality coefficients such as total mortality, Z: 3.38 and natural mortality, M: 1.16 and fishing mortality, F: 2.22 were estimated. Exploitation ratio was estimated to be 0.66. According to biological characteristics, S. tumbil is classified as low vulnerable group fishes.
کلیدواژهها [English]