Histological Characterization of Gonadal Development of Croaker Otolithes ruber (Schneider, 1801) from off Paradeep Coast, Odisha, India

Author: S.K. Bhuyan, S.K. Chakraborty, B.K. Khuntia and Dipsikha Nayak

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Abstract

Histology is a powerful tool in the study of reproductive health of fishes. It is routinely used for sex verification, identifying stage of development. This study presents the first details on morphological and histological characteristics of gonads, gonadal development stages of the tiger tooth croaker Otolithes ruber (Schneider, 1801) Sampling was done fortnightly from January 2018 to December 2019 collecting fresh and live specimen from bottom trawlers fishing off Paradeep fishing harbour, odisha and a total of 196 individuals were collected. The gonads of specimens were removed, their sexes determined and then were fixed in Bouin’s solution after checking their morphology and measuring their weights, and lengths. Based on the size, shape and weight of the gonads, degree of occupation of the body cavity, presence or absence of ripe oocytes or milt, diameter of the oocytes in the ovary, and histological observations, six stages of sexual maturation in females were determined by macroscopic and microscopic study. The study on ova diameter and ovary histology of fully ripe females and spent fishes during different months indicates the spawning season is June to October, being a synchronous spawner

Keywords

Histology, ovary and periodicity, O. ruber

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How to cite this article

S.K. Bhuyan, S.K. Chakraborty, B.K. Khuntia and Dipsikha Naya (2021). Histological Characterization of Gonadal Development of Croaker Otolithes ruber (Schneider, 1801) from off Paradeep Coast, Odisha, India. Biological Forum – An International Journal, 13(3): 717-722