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Title: Monitoring the effectiveness of the European tributyltin regulation on the Basque coast (northern Spain) by assessing imposex in two gastropod species (Nassarius reticulatus and Nassarius nitidus)
Authors: Cuevas, Nagore; Garcia Alonso, Jose Ignacio; Larreta, Joana; Sariego, Cristina; Zorita, Izaskun; German Rodriguez, Jose
Citation: CHEMISTRY AND ECOLOGY, 2014, 30, 636-642
Abstract: Imposex and butyltin body burden were assessed in 2011 along the Basque coast (northern Spain) in two gastropod species (Nassarius reticulatus and Nassarius nitidus) four years after an initial survey in 2007. The aim of this re-survey was to monitor the effectiveness of the European ban on the use of tributyltin (TBT) based antifouling paints on ships' hulls (EC 782/2003). Imposex levels in 2011 were lower than those determined in 2007 at most of the sampling sites. Accordingly, TBT concentrations in the female body burden of Nassarius reticulatus varied from 43 to 250ngSn/g in dry weight in 2011, which was a lower maximum than in 2007. Nevertheless, the results for the butyltin degradation index suggest that there have been recent inputs of TBT within the two main Basque harbours. Overall, the legislative measure is contributing to the reduction of TBT effects on the Basque coast although its presence is still evident.
Keywords: imposex; tributyltin; Nassarius nitidus; Nassarius reticulatus; Basque coast; BIOACCUMULATION PATTERN; BUTYLTIN; TBT; STERILITY; SEDIMENTS; POLLUTION
Issue Date: 2014
Type: Article
Language: English
DOI: 10.1080/02757540.2014.894991
ISSN: 0275-7540
E-ISSN: 1029-0370
Funder: Fundacion Inaki Goenaga
Appears in Publication types:Artículos científicos

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