2005
DOI: 10.5914/tropocean.v33i2.5056
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Altos índices de imposex em Stramonita rustica (Mollusca:Gastropoda) em áreas portuárias dos Estados de Alagoas e Sergipe, Brasil

Abstract: RESUMOO imposex é um excelente marcador da contaminação marinha por compostos orgânicos de estanho (COEs). Esse fenômeno consiste no surgimento de caracteres sexuais masculinos mensuráveis, em fêmeas de neogastrópodes. Um total de 17 estações de coleta foram escolhidas nas proximidades do terminal portuário de Jaraguá no Estado de Alagoas e no interior do estuário do Rio Sergipe, no Estado de Sergipe. Em ambas as áreas observa-se um intenso tráfego de embarcações. Em cada uma dessas estações foram coletados um… Show more

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Cited by 7 publications
(8 citation statements)
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“…Additional evidence of the influence of TBT on masculinization of females in molluscs was reported by Axiak et al (1995), Castro et al (2004) and Horiguchi (2006). Most species in which imposex have been observed belong to the family Muricidae Rafinesque, 1815, which makes this group the one most commonly used as bioindicators to evaluate contamination by organotin compounds worldwide (Castro et al , 2005). Despite evidence of imposex associated with marine pollution, in Brazil Caetano & Absalão (2003) also reported the phenomenon in unpolluted waters, for the family Olividae Latreille, 1825.…”
Section: Discussionmentioning
confidence: 99%
“…Additional evidence of the influence of TBT on masculinization of females in molluscs was reported by Axiak et al (1995), Castro et al (2004) and Horiguchi (2006). Most species in which imposex have been observed belong to the family Muricidae Rafinesque, 1815, which makes this group the one most commonly used as bioindicators to evaluate contamination by organotin compounds worldwide (Castro et al , 2005). Despite evidence of imposex associated with marine pollution, in Brazil Caetano & Absalão (2003) also reported the phenomenon in unpolluted waters, for the family Olividae Latreille, 1825.…”
Section: Discussionmentioning
confidence: 99%
“…As primeiras ocorrências de imposex foram registradas no início dos anos 70 em Nucella lapillus (Blaber, 1970), Ilyanassa obsoleta (Smith, 1971), Thais emarginata (Houston, 1971) e Ocenebra erinacea (Féral, 1974), mas este fenômeno é mais abrangente, afetando mais de 200 espécies em diferentes regiões do mundo (Bigatti et al, 2009). No Brasil já foram registrados casos em regiões costeiras do nordeste (Castro et al, 2000(Castro et al, , 2004(Castro et al, , 2005(Castro et al, , 2008Queiroz et al, 2007), sudeste (Fernandez et al, 2002(Fernandez et al, , 2005Da Costa et al, 2008) e sul do país .…”
Section: Ecotoxicologiaunclassified
“…No Brasil ainda são poucos os trabalhos que enfocam o problema, embora o litoral brasileiro represente cerca de 40% das regiões costeiras do Atlântico Sul. A maioria destes estudos se concentra nas regiões sudeste (Fernandez et al, 2002(Fernandez et al, , 2005Da Costa et al¸ 2008) e nordeste do país (Castro et al, 2000(Castro et al, , 2004(Castro et al, , 2005(Castro et al, , 2008Queiroz et al, 2007).…”
Section: Introductionunclassified
“…In gastropod molluscs, OTCs act as hormone disruptors, which affect at a biochemical level the synthesis and processing of some hormones, causing the masculinization of females (Shimasaki et al, 2003). It even promotes, in some animals, a total and radical change of sex (Castro et al, 2005). It can result in reproductive failure and death of the affected organisms and consequently, in the long term, the local extinction of the species due to lack of recruitment (Castro et al, 2011).…”
Section: Introductionmentioning
confidence: 99%