DSpace Coleção: Nota Técnica/Nota científica (CNPASA)Nota Técnica/Nota científica (CNPASA)https://www.alice.cnptia.embrapa.br/alice/handle/item/241622026-08-12T23:53:58Z2026-08-12T23:53:58ZThe influence of sex ratio on the reproduction of pirarucu, Arapaima gigas, in captivity.LIMA, A. F.https://www.alice.cnptia.embrapa.br/alice/handle/doc/10860052026-06-24T07:16:54Z2018-01-01T00:00:00ZTítulo: The influence of sex ratio on the reproduction of pirarucu, Arapaima gigas, in captivity.
Autoria: LIMA, A. F.
Conteúdo: Because sex ratio in the broodstock can influence the reproductive behaviour of a species, the influence of sex ratio on the reproductive success of pirarucu, Arapaima gigas, in captivity was assessed. Pirarucu breeders were stocked in 0.10-0.13 ha earthen ponds at three sex ratios in quadruplicate: one male to one female (1M1F); one male to two females (1M2F); and two males to one female (2M1F). Eight spawning events occurred, seven of them with the 1M1F sex ratio, which was the most successful of the three tested sex ratios.2018-01-01T00:00:00Z