Your browser doesn't support javascript.
loading
Assessment of tributyltin contamination based on imposex in Stramonita rustica (Mollusca: Gastropoda) along southern Bahia coast, northeastern Brazil / Avaliação da contaminação por tributil-estanho baseada em imposex em Stramonita rustica (Mollusca: Gastropoda) ao longo do Litoral Sul da Bahia
Zeidan, G C; Boehs, G.
  • Zeidan, G C; Universidade Estadual de Santa Cruz. Postgraduate Animal Science Program. Ilhéus. BR
  • Boehs, G; Universidade Estadual de Santa Cruz. Postgraduate Animal Science Program. Ilhéus. BR
Braz. j. biol ; 77(1): 185-190, Jan-Mar. 2017. tab, graf
Article in English | LILACS | ID: biblio-839170
ABSTRACT
Abstract This study investigated the effects of tributyltin (TBT) on the morphology of the genital system of the gastropod Stramonita rustica in southern Bahia, Brazil. For this, 330 specimens were collected during the summer of 2014 at eight sampling points to ascertain whether male sex organs had developed in addition to the complete female genital tract in females (= imposex). The analyses were made under a stereoscopic microscope. Imposex and their associated indexes, and the sterile females, exhibited the highest rates in harbors and shipyards areas. Despite the total ban of TBT in anti-fouling paints on a global scale since 2003, the results of this and other studies indicate the continued use of those paints on the Brazilian coast. This shows the inefficiency of existing legislation and the need to strengthen enforcement of the ban.
RESUMO
Resumo Este estudo investigou os efeitos de tributil-estanho (TBT) sobre a morfologia do sistema genital do gastrópode Stramonita rustica (Lamarck, 1822) no Litoral Sul da Bahia, Brasil. Para isso, 330 espécimens foram coletados durante o verão de 2014 em oito pontos de amostragem, para verificar se os órgãos sexuais masculinos tinham se desenvolvido para além do trato genital feminino completo (= imposex). As análises foram feitas sob um microscópio estereoscópico. O imposex e seus índices associados, assim como as fêmeas estéreis, apresentaram as maiores taxas em áreas portuárias e estaleiros. Apesar da proibição total do TBT em tintas anti-incrustantes em escala global desde 2003, os resultados deste e de outros estudos indicam a continuidade de uso dessas tintas na costa brasileira. Isso mostra a ineficácia da legislação vigente e reforça a necessidade de se cumprir integralmente o banimento.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Paint / Disorders of Sex Development / Trialkyltin Compounds / Gastropoda Limits: Animals Country/Region as subject: South America / Brazil Language: English Journal: Braz. j. biol Journal subject: Biology Year: 2017 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Santa Cruz/BR

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Index: LILACS (Americas) Main subject: Paint / Disorders of Sex Development / Trialkyltin Compounds / Gastropoda Limits: Animals Country/Region as subject: South America / Brazil Language: English Journal: Braz. j. biol Journal subject: Biology Year: 2017 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Santa Cruz/BR