Environmental determination of sex in Apistogrammai (Cichlidae) and two other freshwater fishes (Teleostei)
1996; Wiley; Volume: 48; Issue: 4 Linguagem: Inglês
10.1111/j.1095-8649.1996.tb01467.x
ISSN1095-8649
AutoresUwe Römer, Wolfgang Beisenherz,
Tópico(s)Fish Ecology and Management Studies
ResumoEnvironmental sex determination by temperature could be revealed significantly in 33 Apistogramma‐species and in Poecilia melanogaster . In some, but not all, Apistogramma‐species pH also influences the sex ratio, whereas neither temperature nor pH affect the sex ratio of Pseudocrenilabrus multicolor victoriae . The sex in offspring of A. trifasciata is determined within a sensitive period of about 30 to at least 40 days after spawning.
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