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Heavy metal pollution can occur from indiscriminate discharge of wastes into waterbodies and heavy metals are well-known toxins for man and animals. River Galma is the main drainage channel in Zaria and the river receives copious industrial effluents, agricultural wastes and domestic effluents including sewage from adjoining settlements. Thus, there is every possibility of contamination of water, sediments and fish in the River by heavy metals because of their persistence, toxicity and bioaccumulative nature. The few works on heavy metal loads in the River concentrates on river water and no...

This book is a research work into some aspects of the Limnology and Fisheries potential of a typical African Man made Lake. It documented the physico-chemical parameters of the Lake and the distributions/abundance of the Phytoplankton, Zooplankton, Macro-invertebrates and the composition of the Fish species of Sabke Lake, which is a shallow Freshwater Lake located in Katsina State, Nigeria. The book is written to assist the professional who will want to make comparative studies with other Lakes and the amateur who will develop interest in the field of ecology. Emphasis is placed on...