COMPARATIVE STUDY BETWEEN DESERT CULTIVATED AND NATURAL FISHERIES OF MULLET FISH IN EGYPT: I- CONCERNING HEAVY METALS

Document Type : Original Article

Authors

1 Animal Production Dep.. Faculty of Agric.. AI-Mansourah University

2 Desert Research Center, Ministry of Agriculture

Abstract

Cultivated mullet fish were compared with the wild mullet fish from four
locations during summer and winter 2005122006. This work was evaluated via
chemical analysis of feed, water, sediments and fish besides their contents of three
heavy metals (Cd, Fe a Pb). From the results obtained. it could be concluded that
there is a pollution with heavy metals (particularly with iron and lead) in all fish feeds,
rearing water and sediments of the tested locations (mainly in summer season). Also,
there is no difference between fish of natural resources and those of aquaculture
concerning metals pollution. So, it is a must to take considerations from the
responsible authorities for treating all kinds of waste waters before reaching water
bodies to protect aquatic life and consumers.

Keywords