Question

Name the following Fish seeds are released in the ponds for the growth of fish.

Answer 1

Explanation:

FISH FARMS

1.1 Area and Distribution

On the basis of information provided by the Government, the total area of existing freshwater ponds1 is estimated to be about 0.95 million ha, of which less than 30 percent are operational. West Bengal has a total of about 162 000 ha, possessing the largest, operational, fish pond area. Bihar, Uttar Pradesh, Madhya Pradesh, Andhra Pradesh and Orissa are also major states with large areas of freshwater ponds. Karnataka possesses extensive areas of small irrigation ponds with an average size of about 12 ha. Assam also has large areas of this type of pond, but a great majority of these irrigation ponds are not utilized for fish production (see Table 1 on page 17).

1.2 Physical Characteristics

1.2.1 Land and Water

On the basis of a source of water supply, the predominant type of fish pond in the country can be described as rain-fed. Water levels of this type of pond fluctuate considerably and the fluctuation depends upon a number of factors, such as rainfall and rainfall distribution, fluctuation of ground-water table, soil permeability, evaporation, etc. The so-called perennial ponds are those located at sites with a higher ground-water table. The water supply to these ponds is relatively constant. Extensive areas of this type of pond are distributed along the Lower Ganges Delta and the low-lying lands of other large river basins, whereas the so-called seasonal ponds are those situated at sites with a lower groundwater table. These ponds usually have their maximum water level during the monsoon season, become dry during the dry months, due mainly to seepage. Both types of ponds are suitable for fish culture by the adoption of different management practices. The perennial ponds may require adequate water control structures and equipment for management of the pond water level, while the seasonal ponds would need a suitable system of fish population management for the best utilization of the available waters.