Topic Content:
- Classification of Fishes
- Based on their Habitat
- Based on their MorphologyMorphology is the study of the size, shape, and external structure of animals, plants, and microorganisms and their unique structural characteristics. More
The various species of fish found in oceans, lakes, rivers and streams have evolved over millions of years and have adapted to their preferred environments over long periods of time.
Fishes can be classified based on the following groups;
(a) Based on their Habitat:
A habitat is a place where an organism lives. Fishes live either in freshwater or saltwater.
Fresh Water Fishes:
This is water that has no salt e.g. rivers, streams, ponds, springs, etc. The fishes present are trout, piranha, pike, carp, perch, tilapia, salmon, mudfish, and catfish. Freshwater fishes cannot survive in saltwater.
Salt Water Fishes:
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