Just as large mammals and birds are synonymous to wildlife and environment to forests, biodiversity synonimises terrestrial environment. Aquatic organism such as fish, sharks, whales, crabs, squids, oysters and corals, etc. receive attention on individual basis as they are either beneficial or harmful to man. If we look at animal diversity commencing from protozoans (phylum Prorozoa) to amphibians (Phylum Chordata) a major segment are aquatic and only a small ...
