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Nucella lapillus L. imposex levels after legislation prohibiting TBT antifoulan...
Galante-Oliveira, S.; Oliveira, I.; Ferreira, N.; Santos, J. A.; Pacheco, M.; Barroso, C.Nucella lapillus (dog whelk) imposex levels were assessed along the mainland Portuguese coast in 2006 and 2008 and were compared with available data from 2003 for the same area. Given that specimen size has been described as a factor inducing variation in some of the imposex assessment indices, and thus resulting in less reliable results, new monitoring and data analysis procedures are described and applied to ...
Hydrobia ulvae imposex levels at Ria de Aveiro (NW Portugal) between 1998 and 2...
Galante-Oliveira, S.; Oliveira, I.; Pacheco, M.; Barroso, C. M.Imposex expression in prosobranch gastropods has been widely used as a biomarker of tributyltin (TBT) pollution. Estuaries have been described as the most affected areas by this problem since they usually enclose the main TBT sources—ports, dockyards and marinas—resulting from the compound’s application as a biocide in antifouling paints on ships. Using Hydrobia ulvae as a bioindicator, the current work address...
Imposex levels and tributyltin pollution in Ria de Aveiro (NW Portugal) between...
Galante-Oliveira, S.; Oliveira, I.; Jonkers, N.; Langston, W. J.; Pacheco, M.; Barroso, C. M.Nucella lapillus imposex levels and organotin (OT) concentrations in water and female tissues were measured in samples collected from the Ria de Aveiro (NW Portugal) between 1997 and 2007. Vas deferens sequence index (VDSI), relative penis size index (RPSI), mean female penis length (FPL) and percentage of imposex affected females (%I) were used to determine imposex levels at each site. A significant temporal d...
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