Imposex in Nassarius nitidus (Jeffreys, 1867) as a possible investigative tool to monitor butyltin contamination according to the Water Framework Directive: A case study in the Venice Lagoon (Italy)

Ecotoxicology and Environmental Safety
Federica CacciatoreRossella Boscolo Brusà

Abstract

Butyltin (TBT, DBT, and MBT) effects on molluscs, especially endocrine disruption in bivalves and gastropods, have been widely investigated. Imposex, the superimposition of male characters onto female gonochoristic Caenogastropods, is the most studied biological effect of TBT. TBT compounds are among the priority hazardous substances within Directives 2000/60/EC (WFD) and 2008/105/EC. The Environmental Quality Standards (EQSs) set by the WFD for TBT are quite difficult to quantify by means of chemical analysis, without the use of expensive and high performance methods. Assuming that EQSs set for TBT were derived from evidence of imposex development at very low concentrations, this specific biomarker could be used as an indirect measure of assessing levels of bioavailable BTs. Therefore, this study aims to validate the use of imposex development as an investigative tool to monitor the bioavailable fraction of BTs within the WFD, by comparing imposex levels and BT concentrations in Nassarius nitidus from the Venice Lagoon. BT concentrations and imposex levels in N. nitidus, collected in 2013, had decreased when compared to previous studies in the same area. Both VDSI and RPLI correlated positively with BT body burden in females, ...Continue Reading

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Citations

May 28, 2016·The Science of the Total Environment·Rodrigo Moço BatistaGilberto Fillmann
Jul 19, 2016·The Science of the Total Environment·Thekla I AnastasiouChristos Arvanitidis
Apr 7, 2017·The Science of the Total Environment·Yasna MattosÍtalo B Castro
Nov 28, 2017·Environmental Monitoring and Assessment·Mercia Barcellos da CostaAllana Cristini Borges Resende
Oct 20, 2018·Environmental Monitoring and Assessment·Grazia SoccioAntonio Marcomini
Jun 28, 2018·Environmental Science and Pollution Research International·Omar Ahumada-MartínezMarco A Liñán-Cabello

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