Morphometry, length-weight relationship and relative condition factor of red-toothed trigger fish, Odonus niger

Aim: The study aimed to investigate the morphometric and meristic measurements, length-weight relationship relative condition factor of Odonus niger landed along coastal Karnataka. Methodology: (Kn) O. was studied for a period eight months from August 2019 March 2020. different characters were subjected statistical analysis. analyzed both sexes (female male) combined data. Monthly size group. Results: A comparison measurements exhibited good extent correlation indicating interdependence these characters. Four out are environmentally controlled suggested wide range zoogeographical distribution niger. is indicated as W = 0.046 L2.565, 0.044 L2.589 0.047 L2.561 with coefficient determination (r2) 0.910, 0.913 0.910 male, female sexes, respectively. 'b' values (male female) negative allometric growth (p<0.05) appeared be leaner. There no significant variation among groups. However, little higher observed during November February. Interpretation: fills knowledge gap support developing suitable management system this fish species.