Age, growth and reproduction of Mullus surmuletus(Linnaeus, 1758) in Saros Bay (Northern Aegean Sea)
Mukadder Arslan, Ali İşmen
Department of Fishing and Processing Technology, Faculty of Marine Science and Technology, Çanakkale Onsekiz Mart University, 17100, Çanakkale, TURKEY
The age, growth, reproduction of Mullus surmuletus, caught in Saros Bay (North Aegean Sea) between November 2006 and June 2008, were investigated. The female˗male ratio was 1.6:1. The total length (weight) of females ranged from 11.0 cm to 26.8 cm (15.3 g to 235.1 g) and of males from 11.8 cm to 19.8 cm (19.1 g to 91.2 g). The growth parameters for females were calculated as L∞=28.38 cm K=0.19 year ˗1, t0 =˗2.16 year and for males L∞=26.94 cm, K=0.20 year ˗1, t0 =˗2.34 year. The length at first maturity for females and males was 13.7 cm and 13.2 cm, respectively. Monthly values of the gonadosomatic index indicated that spawning occurred mainly between April and May.
Keywords: Mullus surmuletus, age, growth, reproduction