LS - An International Journal of Life Sciences
  • Year: 2019
  • Volume: 8
  • Issue: 1

Few Aspects of the Reproductive Biology of Oreochromis mossambicus (peter 1852) from Lower Anicut, Tamil Nadu, India

  • Author:
  • P. Manivannan1, R. Sivakumar2,, R. Mathialagan3
  • Total Page Count: 10
  • Published Online: Apr 1, 2019
  • Page Number: 1 to 10

1Research Scholar, PG and Research Department of Zoology, Government Arts College (Autonomous), Kumbakonam-612002, Tamil Nadu, India

2Assistant Professor, PG and Research Department of Zoology, Government Arts College (Autonomous), Kumbakonam-612002, Tamil Nadu, India

3Assistant Professor, Department of Life Science, MASS College of Arts & Science, Chennai Salai, Kumbakonam-612501, Tamil Nadu, India

*Corresponding author email id: sivaera@gmail.com

Abstract

The morpho histological studies of the gonads revealed that the existence of five maturity stages of O. mossambicus. Although, gonado somatic index (GSI) indicated that the breeding season extended from December to August the appearance of first sexual maturity was observed in female than in male. It was concluded that the 50% of male individual were mature than females which was assessed through histological analysis of the present species.

Keywords

O. mossambicus, Sex ratio, Gonado somatic index, Maturity stages