Some biological characteristics of Atlantic bonito (Sarda sarda Bloch, 1793) from Gallipoli Peninsula and Dardanelles (northeastern Mediterranean, Turkey)

Authors : Özgür CENGİZ

Pages : 73-83

Doi:10.3906/sag-1207-72

View : 17 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :This study was carried out to determine some biological characteristics of Atlantic bonito insert ignore into journalissuearticles values(Sarda sarda Bloch, 1793); from the Gallipoli Peninsula and Dardanelles insert ignore into journalissuearticles values(northeastern Mediterranean, Turkey); between September 2006 and October 2009. The length-weight relationship was estimated as W = 0.0020TL3.41 insert ignore into journalissuearticles values(r2 = 0.96); for females, W = 0.0029TL3.32 insert ignore into journalissuearticles values(r2 = 0.97); for males, and W = 0.0028TL3.32 insert ignore into journalissuearticles values(r2 = 0.97); for all samples. The von Bertalanffy growth parameters were computed as L\infinity = 68.5 cm, k = 0.78 year-1, t0 = -0.34 years for females; L\infinity = 72.2 cm, k = 0.69 year-1, t0 = -0.52 years for males; and L\infinity = 69.8 cm, k = 0.76 year-1, t0 = -0.44 years for all samples. The length at first maturity was estimated to be 41.9 cm for females and 35.8 cm for males.
Keywords : Sarda sarda, age, growth, Gallipoli Peninsula, Dardanelles, Atlantic bonito