2017
DOI: 10.1111/jfb.13499
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Abstract: Sexual dimorphism in size, anal-fin shape and coloration of Hyphessobrycon igneus, Characidae, were examined. Males were more frequent at larger body sizes, confirming body size as a sexually dimorphic trait. Anal-fin shape and the colour of all fins were the same for females and juveniles, differing only in adult males. Likewise, only adult males had bony hooks on fin rays; larger and more sexually mature males had the most numerous and developed hooks and hooks were most developed in degree and number during… Show more

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Cited by 4 publications
(1 citation statement)
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“…The male and female germ cells allowed the characterization of gonadal development phases according to the proposal of Brown-Peterson et al (2011), which was adopted in the upper Paraná River floodplain in the study of the reproduction of other invaders Serrasalmus marginatus (Melo, Santana, & Dei Tos, 2017), Loricariichthys platymetopon (Cardim, Pereira, Santana, & Dei Tos, 2019) and Auchenipterus osteomystax (Dei Tos et al, 2021). This scale has been adopted for investigations of freshwater fish reproduction in Brazil since 2013 for Hoplias malabaricus and Sorubim lima (Quagio-Grassiotto et al, 2013), Pimelodus maculatus and Serrasalmus maculatus (Wildner, Grier, & Quagio-Grassiotto, 2013), and more recently for Hyphessobrycon igneus (Longoni, Giora, & Fialho, 2018), Devario aequipinnatus (Jesus-Silva, Oliveira, Ribeiro, Ninhaus-Silveira, & Veríssimo-Silveira, 2018) Astyanax aff. bimaculatus (Araújo, Nascimento, Gomes, Sales, & Oliveira, 2019) and Rhamdia quelen (Mazzoni, Bombardelli, & Quagio-Grassiotto, 2020).…”
Section: Discussionmentioning
confidence: 99%
“…The male and female germ cells allowed the characterization of gonadal development phases according to the proposal of Brown-Peterson et al (2011), which was adopted in the upper Paraná River floodplain in the study of the reproduction of other invaders Serrasalmus marginatus (Melo, Santana, & Dei Tos, 2017), Loricariichthys platymetopon (Cardim, Pereira, Santana, & Dei Tos, 2019) and Auchenipterus osteomystax (Dei Tos et al, 2021). This scale has been adopted for investigations of freshwater fish reproduction in Brazil since 2013 for Hoplias malabaricus and Sorubim lima (Quagio-Grassiotto et al, 2013), Pimelodus maculatus and Serrasalmus maculatus (Wildner, Grier, & Quagio-Grassiotto, 2013), and more recently for Hyphessobrycon igneus (Longoni, Giora, & Fialho, 2018), Devario aequipinnatus (Jesus-Silva, Oliveira, Ribeiro, Ninhaus-Silveira, & Veríssimo-Silveira, 2018) Astyanax aff. bimaculatus (Araújo, Nascimento, Gomes, Sales, & Oliveira, 2019) and Rhamdia quelen (Mazzoni, Bombardelli, & Quagio-Grassiotto, 2020).…”
Section: Discussionmentioning
confidence: 99%