Culture fishery is rearing and harvesting of fish in small water bodies. The best method of culture
fishery is composite fish culture. Here fishes and selected on the basis of their growth rate, palatability,area of feeding and tolerance towards others. All of them have their exclusive zone and type of feeding.
There are three zones- surface, middle zone and bottom zone. Each zone can have 2 or 3 feeding options.
a. Why the different fishes do not compete with one another for food?
b. How many species can be accommodated at the bottom of the fish pond?
c. Name the fishes that reside in the surface zone of the pond.
d. How many species are accommodated in the middle zone?
Answers
Answer:
a. the different fishes donot compete with one another for food because diffrent type of fishes have different food habits..
b. small fishes
c. Tuna etc..
d... in small pond there are 10 . in large pond more than 10
Complete question:-
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Culture fishery is rearing and harvesting of fish in small water bodies. The best method of culture fishery is composite fish culture. Here, fishes are selected on the basis of their growth rate, palatability, area of feeding and tolerance towards others. All of them have their exclusive zone and type of feeding. There are three zones- surface, middle zone and bottom. Each zone can have 2 or even 3 feeding options.
a. Why the different fishes do not compete with one another for food?
b. How many species can be accommodated at the bottom of the fish pond?
c. Name the fishes that reside in the surface zone of the pond.
d. How many species are accommodated in the middle zone?
Answer:-
a. For composite fish culture fishes are selected in such a way that they have different food habits and hence do not compete with each other.
b. At the bottom of the fish pond usually a single species of fish is cultured. Eg. Cod, Carp, etc.
c. Some surface feeding species are Catla, Bluefin tuna, sardine, etc.
d. The middle zone usually occupies a pair of fish species such as Tiger Barb and Rummy Nose Tetras.