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Give an account of different types of fish ponds used for rearing fishes.
a. The healthy and sexually mature male and female fishes are collected and introduced to this pond for breeding . Then the eggs released by the female are fertilized by the sperm. The eggs float in water as a frothy mass.
b. A pond that is used for hatching is called . It is a place for breeding. In these hatching pits fertilized eggs are transferred for hatching.
c. The hatchlings from the hatchling pits are transferred after days to ponds so that the hatchlings grow in size. These growing hatchlings are cultured in these ponds for about with proper feeding till they reach 2 - 2.5 cm in length.
d. The ponds that are used to culture the baby fishes are known as . The fishes are maintained here for so that they reach a length of 10 to 15 cm. In these ponds, the fry develops into fingerlings.
e. Stocking pond is also known as as these ponds are used to rear fingerlings up to the marketable size.
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