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Occurrence of imposex in Thais haemastoma: possible evidence of environmental contamination derived from organotin compounds in Rio de Janeiro and Fortaleza, Brazil

2002; Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz; Volume: 18; Issue: 2 Linguagem: Inglês

10.1590/s0102-311x2002000200011

1678-4464

Marcos Antônio dos Santos Fernandez, Aricelso Maia Limaverde, Ítalo Braga Castro, Ana Cristina Almeida, Ângela de Luca Rebello Wagener,

Microplastics and Plastic Pollution

There are indications that the widespread use of organotin compounds (TBT and TPT) as antifoulings, as stabilizers in plastic and as pesticides, has severely affected several species of marine organisms. The most striking effect of TBT and TPT as hormonal disruptors is the development of male organs in females of gastropods, currently denominated imposex. This syndrome can lead to the sterilization and death of affected organisms. The present work gives an overview of the present state of knowledge on imposex occurrence and reports results of a survey conducted in Guanabara Bay, Rio de Janeiro and in several sites along the coast of Fortaleza, Ceará State. Different stages of imposex development were verified in this survey, however, the most prominent levels appeared associated to known spot sources of TBT and TPT.