CBSE Class 9 Answered
(a) What are the two ways by which we can obtain fish for our food? Explain. How is culture of Pomphret and Mackeral different from that of Catla and Rohu?
(b) Give an example each for:
(i) Fresh water prawn
(ii) Marine water prawn
Asked by Topperlearning User | 29 Mar, 2016, 07:18: AM
Expert Answer
(a) We can obtain fish from natural resources called capture fishing and by fish farming called culture fishing.
Pomphret and mackerel are marine fish cultured in sea water whereas Catla and Rohu are fresh water fish grown in inland fisheries like ponds, canals, reservoirs and rivers and are recommended for composite fish culture system.
(b) (i) Macrobrachium rosenbergii (Fresh water) (ii) Peneaus monodon (marine)
Answered by | 29 Mar, 2016, 09:18: AM
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