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Comments of Daphnia
Distribution:-
Daphnia is widely distributed in India, Asia, Europe and U.S.A
Habit and Habitat:-
Daphnia is found in freshwater, ponds, streams and ditches.
General character:
1. Daphnia is commonly called water flea.
2. Body except the head is enclosed in a bivalve shell or a large fold of carapace.
3. Body is soft, laterally compressed measuring 1-2 mm in length.
4. Sex is separate.
5. Segmentation is very imperfect.
6. Carapace ends into a pointed dorsal spine.
7. Abdomen is devoid of appendages.
Economic Importance:
Daphnia are not used by humans as a good source directly.
They are involved in many of the food chains necessary to sustain fish.
Diagram of Daphnia
