Gillnet Selectivity for Big Eye Barracuda, Sphyraena forsteri (Cuvier, 1829) in Thoothukudi Waters, Southeast Coast of India

摘要

The present study is the first concerning gillnet selectivity in Thoothukudi waters, Tamil Nadu, India. Selectivity estimates were made for Sphyraena forsteri. Sampling took places at three landing centers in Thoothukudi Coast from the period between April 2012 to March 2013. Samples were collected with gillnets of mesh sizes of 28 mm, 50 mm and 52 mm. Selection factors for S. forsteri is 7.04 whereas the commercial significant length group is 40.42 cm. Optimum size for this species is 5.82 cm.