2011
DOI: 10.3856/vol39-issue2-fulltext-10
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Biologia de la raya guitarra Rhinobatos leucorhynchus (Günther, 1867) (Rajiformes: Rhinobatidae) en el Pacifico colombiano

Abstract: RESUMEN.La raya guitarra Rhinobatos leucorhynchus es comúnmente capturada como fauna acompañante en la pesca del camarón de aguas someras del Pacífico colombiano, tanto a nivel industrial como artesanal. A partir de 286 ejemplares capturados incidentalmente entre 2001 y 2007, se estudiaron diferentes aspectos biológicos de esta especie. Las hembras fueron proporcionalmente más grandes que los machos, aunque el crecimiento fue similar en ambos sexos (alométrico). Los embriones no presentaron diferencias sexuale… Show more

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Cited by 24 publications
(37 citation statements)
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“…However, Almeida et al (2010) did not observe sexual differences in the diet of P. motoro on the Marajo Island in Brazil. Similar findings, reporting either the presence or absence of sexual differences among congeneric species of marine batoids, were cited by PoloSilva and Grijalba-Bendeck (2008) and Payán et al (2011) for Rhinobatos and Belleggia et al (2008) for Bathyraja.…”
Section: Discussionsupporting
confidence: 85%
See 1 more Smart Citation
“…However, Almeida et al (2010) did not observe sexual differences in the diet of P. motoro on the Marajo Island in Brazil. Similar findings, reporting either the presence or absence of sexual differences among congeneric species of marine batoids, were cited by PoloSilva and Grijalba-Bendeck (2008) and Payán et al (2011) for Rhinobatos and Belleggia et al (2008) for Bathyraja.…”
Section: Discussionsupporting
confidence: 85%
“…On the Marajó Island, at the lower Amazon drainage, P. motoro also consumed insects, but decapod crustaceans and fish were the dominant items . Despite the lack of data on the feeding ecology of extinct freshwater stingrays, we may assume that at least in the Potamotrygonidae, the insectivorous habit found mainly in juveniles of extant species, but also in the adults of some species, represents an evolutionary shift from the basal diet composed of hard-shelled invertebrates in marine batoids (Carroll, 1987), dominated by macrocrustaceans (Belleggia et al, 2008;Moura et al, 2008;Payán et al, 2011).…”
Section: Discussionmentioning
confidence: 99%
“…Most studies on elasmobranchs in Colombia have been directed towards biology (e.g. Mejía-Falla et al, 2012, 2014aGrijalba-Bendeck et al, 2012;Payán et al, 2011), ecology (e.g. Navia et al, 2007Navia et al, , 2010Navia et al, , 2011López-García et al, 2012;Mejía-Falla et al, 2014b), fisheries (Acevedo et al, 2007;Grijalba-Bendeck et al, 2007), genetics (Hleap et al, 2012), and only Díaz (1984) carried out a zoogeographical study of sharks in the Colombian Pacific.…”
Section: Introductionmentioning
confidence: 99%
“…The guitarfish diet is dominated by small crustaceans, fishes being a complementary component (Talent 1982, White et al 2004, Bizzarro 2005, Downton-Hoffman 2007, Navia et al 2007, Valadez-González 2007, Payán et al 2011. However, changes in the diet composition of several ray species have been described to be influenced by sex or maturity stage, as well as spatial and temporal effects (Ellis et al 1996, Bethea et al 2004, Bizzarro 2005, Braccini and Perez 2005, Magraña and Gilberto 2007, Belleggia et al 2008.…”
Section: Introductionmentioning
confidence: 99%
“…It is a shallow-water, soft-bottom benthic species showing low mobility (McEachran and Notabartolo-Di-Sciara 1995). Like other species of the genus Rhinobatos, it is an important part of the incidental catch in several fisheries worldwide (Payán et al 2011). In Mexico, it is caught in artisanal gillnet fisheries off the states of Sonora and Sinaloa (Márquez-Farías and Blanco-Parra 2006), and off Nayarit and Jalisco (Godínez-Domínguez et al 2000).…”
Section: Introductionmentioning
confidence: 99%