Dispersion of hooks on the anal fins of primary and secondary males in Brycon orbignyanus (Characiformes: Bryconidae): a secondary sexual trait for breeder selection

Dispersion of hooks on the anal fins of primary and secondary males in Brycon orbignyanus (Characiformes: Bryconidae): a secondary sexual trait for breeder selection

Abstract Brycon orbignyanus exhibits seasonal reproduction where males can be distinguished from females by the roughness present in the anal fin of the specimens that represents a secondary sexual characteristic known as hooks. This study aimed to describe the appearance and morphology of hooks on...

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Bibliographic Details
Main Authors: Bárbara Correa Bianchini, Patricia Postingel Quirino, Marina de Oliveira Cristan, Maria Luiza Ribeiro Delgado, Luciane Gomes-Silva, Cristiane Fernanda Benevente, Maiara Luzia Grigoli-Olivio, Alexandre Ninhaus-Silveira, Rosicleire Veríssimo-Silveira
Format: Article
Language:English
Published: Sociedade Brasileira de Ictiologia 2024-04-01
Series:Neotropical Ichthyology
Subjects:
Characiformes
Fish reproduction
Piracanjuba
Sexual dimorphism
Testicular development
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000100220&lng=en&tlng=en

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http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000100220&lng=en&tlng=en

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