Long-term temporal trends (1992-2008) of imposex status associated with organotin contamination in the dogwhelk Nucella lapillus along the Icelandic coast

Using the dogwhelk Nucella lapillus as a biomonitor, we evaluated the organotin contamination along the Icelandic coast over nearly two decades. In 2008, adult dogwhelks collected from 30 locations were examined for imposex status. In 2009, tissue concentrations of six organotin species in dogwhelks...

Full description

Bibliographic Details
Published in:Marine Pollution Bulletin
Main Authors: Gudmundsdóttir, LÓ, Leung, KMY, Svavarsson, J, Lam, JCW, Ho, KKY
Format: Conference Object
Language:English
Published: Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbul 2011
Subjects:
Organotin
Recovery
Antifouling paint
Imposex
Neogastropod
TBT
Water Pollutants
Chemical - analysis - metabolism - toxicity
Disorders of Sex Development - chemically induced - epidemiology - veterinary
Environmental Monitoring
Gastropoda - drug effects - metabolism - physiology
Organotin Compounds - analysis - metabolism - toxicity
Reykjavík
Dogwhelk
Nucella lapillus
Online Access:https://doi.org/10.1016/j.marpolbul.2011.02.012
http://hdl.handle.net/10722/130259
Description
Summary:Using the dogwhelk Nucella lapillus as a biomonitor, we evaluated the organotin contamination along the Icelandic coast over nearly two decades. In 2008, adult dogwhelks collected from 30 locations were examined for imposex status. In 2009, tissue concentrations of six organotin species in dogwhelks from 16 of the 30 locations were analysed using gas chromatography-mass spectrometry. Tributyltin was the most predominant residue ranging from 2.07 to 70.38μgkg -1 dw, while triphenyltin was also detected at concentrations up to 22.79μgkg -1 dw. Higher total organotin concentrations and imposex indices were observed at locations near large harbours (Reykjavík and Hafnarfjör{eth}ur). By comparing the current imposex results with those of previous surveys (1992-2003), we found that recovery was slow near the large harbours, but more apparent near the smaller harbours. We also observed a notable increase in imposex at several northwest sites implying incessant input of organotins. © 2011 Elsevier Ltd. link_to_subscribed_fulltext The 6th International Conference on Marine Pollution and Ecotoxicology, City University of Hong Kong, Hong Kong, 31 May-3 June 2010. In Marine Pollution Bulletin, 2010, v. 63 n. 5-12, p. 500-507

Similar Items