Friday, 7 November 2014

TYPES OF PONDS FOR FISH CULTURE



Fish culture ponds differ in size and depth depending on their functions:
(key word:ha=hectare)
  1. NURSERY PONDS: They are usually about 0.02-0.05ha. The water is usually about 1m deep.
  2. REARING PONDS: They are usually larger than a nursery pond. Water is about 1.5-2.0m deep. Nursery and rearing ponds are seasonal.
  3. STOCKING PONDS:They are much larger,0.2-2.0ha.It should be  2.0-3.5m deep. This pond might be perennial or seasonal.
  4. MARKETING PONDS: They are small but quite deep;they are used to keep fish caught from a stocking pond for sale,at short notice. Usually 0.05-0.10ha in size,water level is 3-4m in dry seasons.
  5. BROODSTOCK PONDS: They are usually 0.2-0.4ha. They are perennial and have a water depth of 2m in dry season.
  6. QUARANTINE PONDS: Fish are brought in from outside and placed in this pond-0.02ha,1.5m deep. This pond serves to verify that fish are not infected and if they are,treat diseased fish from other ponds here.

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