Abstract

Today unwise anthropogenic activity has disturbed the natural ecosystem globally. Civilization on its way to goal has
destroyed nature as well as natural diversity. Aquatic ecosystem is also facing the same adverse effect as they are used
as waste releasing source. However, anthropogenic activity has drastically damaged the natural habitat of all the living
being. Though river water is used for agriculture, fisheries, residential and industrial developments, mining activity,
navigation, power generation and variety of other activities including sand digging and disposal of industrial and
domestic wastes, but still, some natural breeding do exists in the nature. Identification of those natural breeding ground
and to bring them under proper conservation is a most effective way of natural breed conservation. The river Damodar
is the most important watershed in the eastern part of India and is one of the main tributaries of the Ganga. The river
housed a healthy fish faunal diversity in the recent past but today in spite of drastic deterioration of natural ecosystem,
astonishingly no significant difference occurred in faunal composition of the river system.

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