1999
DOI: 10.1590/s1516-89131999000400011
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Reproductive biology of a tetragonopterinae (osteichthyes, characidae) of the Ubatiba fluvial system, Maricá - RJ

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Cited by 26 publications
(40 citation statements)
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“…SOARES-PORTO 1994;MENEZES & CARAMASCHI 1994ARANHA & CARAMASCHI 1997MAZZONI & PETITO 1999;MAZZONI & LÓBON-CERVIÁ 2000). A ictiofauna é diversa, tendo sido registradas 22 espécies nesse rio, o que corresponde a 7,4% do total de espécies listado para os rios da Região Sudeste do Brasil (MAZZONI 1998).…”
unclassified
“…SOARES-PORTO 1994;MENEZES & CARAMASCHI 1994ARANHA & CARAMASCHI 1997MAZZONI & PETITO 1999;MAZZONI & LÓBON-CERVIÁ 2000). A ictiofauna é diversa, tendo sido registradas 22 espécies nesse rio, o que corresponde a 7,4% do total de espécies listado para os rios da Região Sudeste do Brasil (MAZZONI 1998).…”
unclassified
“…Within the Characidae, sexually dimorphic characters have been reported in several species. Most dimorphic characters are associated with sexual structures, such as the presence of hooks in anal and pelvic fins Dala-Corte, Fialho, 2014), sexual glands (Menezes, Weitzman, 2009;, or even fin shape ), but body shape (Ortega-Lara et al, 2002;Riehl, Baensch, 2007) and body size (Mazzoni et al, 2005;Mazzoni, Petito, 1999) have also been reported to differ. For H. coeruleus, aquarium observations of old-age individuals (approximately 7 cm SL) indicate differences between males and females (J.…”
Section: Discussionmentioning
confidence: 99%
“…Altitudinal segregation of young and adult individuals is an indicative of differences in the habitat use by different age classes and achieved by up-stream repro- Thus, as both species have a similar reproductive strategy when breeding season and oocytes recruitment are considered (Mazzoni and Petito, 1999;Mazzoni et al, 2005) RC, at the population level, considered as a measurement of gamete production (OI) and gamete release (BS), were 1,703.7 for AJ and 2,274.0 for AH; thus RC is 25% higher in AH.…”
Section: Discussionmentioning
confidence: 99%
“…The extension of Breeding Season (BS), considered as the number of months with breeding individuals, was the second indicative parameter of energetic investment and determined through the temporal occurrence of reproductive females (ripe and spawned ovaries). The third parameter, egg size and fecundity, were obtained from the literature (Mazzoni and Petito, 1999;Mazzoni et al, 2005) and treated as Ovarian Investment (OI), by the following model: OI = F * EV; where, F = fecundity (number of eggs / g of fish) and EV = mean volume of ripe eggs. A measurement of the reproductive cost (RC) of each species, that is the breeding season fecundity (sensu Wootton, 1990), was estimated with a simple equation linking OI and BS values: RC = BS * OI.…”
Section: Padrões De Investimento Da Estratégia Reprodutiva De Duas Esmentioning
confidence: 99%