Tributyltin impacts in Galapagos Islands and Ecuadorian shore: Marine protected areas under threat

Tributyltin impacts in Galapagos Islands and Ecuadorian shore: Marine protected areas under threat

Author Rodriguez Grimon, Rene Oscar Google Scholar
Arroyo Osorio, Maria Fernanda Google Scholar
de Freitas, Debora M. Google Scholar
Castro, Italo Braga Autor UNIFESP Google Scholar
Abstract Imposex incidence and biometric parameters were investigated in six muricid species along of 1200 km of Ecuadorian shore and in Galapagos archipelago. The obtained data, were compared to previous studies performed in the same area in 2009. The results showed that moderate imposex levels still occur in coastal areas of Ecuador, even after global TBT ban. However, a reduction in imposex parameters was detected in the sampled sites, indicating probably relationship to the global TBT ban issued by IMO at 2008. On the other hand, the levels currently reported in present study indicates that TBT environmental concentrations are still high enough to produce biological effects in studied areas. In addition, imposex incidence in four muricid species from Galapagos islands were detected suggesting that this marine protected area is under threat of antifouling contamination. These findings, after TBT global ban, denotes that current regulations and conservation plans still need to address such an issue and incorporate more restrictive management rules, particularly in complex coastal areas, vulnerable and unique systems such as the Galapagos Islands. (C) 2016 Elsevier Ltd. All rights reserved.
Keywords Antifouling paints
Regulations
Harbor areas
Marine protected areas
Imposex
xmlui.dri2xhtml.METS-1.0.item-coverage Oxford
Language English
Date 2016
Published in Marine Policy. Oxford, v. 69, p. 24-31, 2016.
ISSN 0308-597X (Sherpa/Romeo, impact factor)
Publisher Elsevier Sci Ltd
Extent 24-31
Origin http://dx.doi.org/10.1016/j.marpol.2016.03.017
Access rights Closed access
Type Article
Web of Science ID WOS:000377228800003
URI https://repositorio.unifesp.br/handle/11600/57716

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