Mobilization of energetic substrates in the endangered catfish Steindachneridion parahybae (Siluriformes: Pimelodidae): changes in annual reproductive cycle in captivity

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A case of intersex occurrence in Steindachneridion parahybae (Steindachner, 1877) (Siluriformes: Pimelodidae) under captivity condition: a cytogenetic and morphological study

Little is known about reproductive biology of endangered Steindachneridion parahybae, a gonochoristic teleost species inhabiting the Paraíba do Sul River Basin, and herein is the first description of intersex in S. parahybae juvenile. The normal appearance of ovaries and testes in juvenile from the same lot of breeding were also described for comparison, even as cytogenetic analysis was perform...

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ژورنال

عنوان ژورنال: Neotropical Ichthyology

سال: 2018

ISSN: 1982-0224,1679-6225

DOI: 10.1590/1982-0224-20170120