Fish lived in aquatic environment for more than 300 millions year since the Devonian times. The fish are most numerous of all the vertebrates. In ancient water oriented civilization fishing was the main occupation. The fish occupies the main place in the society and economy in ancient, medieval, and modern period. It is main source of nutritional security for man in every period. The fish is also main occupation for numerous persons living nearby coastal areas, reservoirs and rivers.
Fishery Management
$56.70
$63.00
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