In a village of West Bengal, 4-5 varieties of fish are cultured in a single pond.
a. What is the benefit of this practice? Name the fish culture.
b. What is the problem in the farming of fish.
c. How do different fish utilise the food available in ponds?
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Answers
Answer:
a. An advantage of composite fish culture is that it increases the yield of fish. Nearly, five or six different species are grown together in a single fish pond. The survival rate of fish increases and their yield also increases without affecting the other species.
b. In case of ocean fish farming, fish wastes, excess food, fish escapes, antibiotics and various chemicals from fish farms can all result in water pollution and harm surrounding habitats by poisoning wildlife and causing other disturbances. – Industries, is also a factor that can destroy the fish farming.
c. Fish in a garden pond can live on foods like plankton, floating pond plants, and the tiny roots of pond plants floating in the water, as well as the larvae of insects, worms, and other small animals.
Explanation:
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