Reproduction of the catfish Iheringichthys labrosus (Lütken) (Pisces, Siluriformes) in Furnas reservoir, Minas Gerais, Brazil (original) (raw)

2004, Revista Brasileira de Zoologia

AI-generated Abstract

The reproductive biology of the catfish Iheringichthys labrosus in Furnas reservoir, Minas Gerais, Brazil, was explored from August 1993 to July 1994, involving the capture of 323 males and 817 females. Findings indicate that both sexes were reproductively active year-round, with a peak in advanced maturation from October to January and spawning occurring in tributaries or the reservoir itself. The species exhibits fractional or multiple spawning with asynchronous oocyte development, emphasizing the role of environmental factors on reproductive cycles.