Relative Gut Length and Gastro-somatic Index of Acanthopagrus arabicus (Iwatsuki, 2013) from the Offshore Waters of Pakistan

Abstract

Relative gut length, Zihler’s index, and Gastro-somatic index of Acanthopagrus arabicus were studied to investigate its feeding intensity and feeding habit, by collecting 240 samples of fishes from two fishing harbors of Pakistan from September 2017 to August 2018. According to the results, fish mean total length ranged from 16.26 ± 2.83 cm (in June) to 30.89 ± 5.16 cm (in September), and mean total weight ranged from 77.70 ± 42.25 g (in June) to 486.80 ± 237.28 g (in November). The total length and gut length of A. arabicus have a strong statistical relationship (P