
Reproductive characteristics of pike‐characids Boulengerella cuvieri (Ctenoluciidae) in the middle Xingu River, Eastern Amazon
2017; Wiley; Volume: 91; Issue: 1 Linguagem: Inglês
10.1111/jfb.13339
ISSN1095-8649
AutoresYanne A. Mendes, María Auxiliadora Pantoja Ferreira, Cleonice Maria Cardoso Lobato, G. M. F. Silva, Luciano Fogaça de Assis Montag, Rossineide Martins da Rocha,
Tópico(s)Fish Ecology and Management Studies
ResumoThis study evaluated the reproductive characteristics of pike-characids, Boulengerella cuvieri, during the hydrological cycle in the Xingu River, eastern Amazon. The sex ratio was 1:1 and the gonado-somatic index and relative frequency of maturation stages indicate a short breeding season of single phase spawning that coincides with a filling and flood period. Mean standard length at first sexual maturity for female B. cuvieri was estimated to be 22·9 cm.
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