Toxicologie environnementale et analytique

Impact of Physico-Chemical Parameters on Finfish Eggs Diversity from Muthupettai, South East Coast of India

Abstract

Selvam J, Varadharajan D, Babu D and Balasubramanian T

Physical and chemical parameters can determine the species diversity and abundance in particular area. Environmental parameters such as rainfall, atmospheric temperature, water temperature, salinity, pH and dissolved oxygen were recorded and correlated with the distribution of fish eggs. It is evident from the present study that the water temperature and salinity appear to play a significant role in determining the distribution of fin fish eggs in the study area. The time and intensity of spawning of fishes may perhaps be controlled by the seasonal cycle of the environmental factors. The physico-chemical parameters recorded from various stations presently showed monthly seasonal and annual variations.