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No Thumbnail AvailableBook (series)Proceedings of the world scientific conference on the biology and culture of shrimps and prawns / Actes de la conférence scientifique mondiale sur la biologie et l'élevage des crevettes / Actas de la conferencia cientifica mundial sobre biologia y cultivo de camarones y gambas 1968
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No Thumbnail AvailableBook (series)Actas de la conferencia cientifica mundial sobre biologia y cultivo de camarones y gambas 1968
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No results found.Larvae of decapod Crustacea usually require different food and environmental conditions from juveniles and adults. It is suggested that in culture the problems of rearing larvae could be eliminated or greatly reduced by selecting species with direct or abbreviated development. Examples of shrimps and prawns with rapid post-embryonic development are given, and studies on their biology in captivity to assess their suitability for culture are proposed. -
No Thumbnail AvailableBook (series)Proceedings of the world scientific conference on the biology and culture of shrimps and prawns / Actes de la conférence scientifique mondiale sur la biologie et l'élevage des crevettes / Actas de la conferencia cientifica mundial sobre biologia y cultivo de camarones y gambas 1968
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No results found.The paper is based on experiments and observations made at Penang, Malaysia. Macrobrachium rosenbergii is widely distributed in fresh and brackish waters in southeast Asia. It is omnivorous and its feeding behaviour is described. An account is given of moulting, mating and egg-laying and of embryonic, larval and postlarval development. The larva undergoes ll moults before reaching the juvenile stage, but only 8 larval stages are morphologically distinct. At 26 to 28°C, embryonic development take s 19 to 20 days and larval development takes 30 to 45 days; when cultured in ponds, the prawns become fully grown 7 to 8 months after metamorphosis. The larval stages require brackish water for survival. Under natural conditions, the juveniles migrate to fresh water and adult females release their larvae in the upper parts of estuaries.
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