Preliminary Report on the Size-specific Variation in Length-weight Relationship, Relative Condition Factor, and Gonad Maturation of Bigeye Scad Selar crumenopthalmus (Bloch, 1793) in the northern Sulu Sea, Philippines

Abstract

A preliminary investigation on the size-specific variation in the length-weight relationship, relative condition factor, and gonad maturation of Bigeye scad, Selar crumenopthalmus, was conducted from April to May 2018 in the northern Sulu Sea, Philippines. A total of 435 samples were collected using a ring net. The results showed a shift from isometric to negative allometric growth pattern, good condition, and earlier maturation in males in S. crumenopthalmus. These findings help us understand some aspects of the S. crumenopthalmus population in the area; however, further research needs to be conducted with increased sampling duration and frequency.