Galante-Oliveira Susana, Oliveira Isabel, Jonkers Niels, Langston William J, Pacheco Mário, Barroso Carlos M
CESAM & Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal.
J Environ Monit. 2009 Jul;11(7):1405-11. doi: 10.1039/b900723g. Epub 2009 Jun 2.
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 decline in imposex intensity was observed during the assessed period. Imposex decrease was evident after 2003 although improvements were most notable from 2005 to 2007, probably due to the implementation of the EU Council Regulation no.782/2003 forbidding further application of tributyltin (TBT) antifouling on vessels carrying EU flags. Despite these improvements, OT analysis in N. lapillus female tissues and water indicate there are still recent TBT inputs into the study area.
1997年至2007年期间，在从阿威罗河口（葡萄牙西北部）采集的样本中，对蛎鹬的性畸变水平以及水和雌性组织中的有机锡（OT）浓度进行了测量。使用输精管序列指数（VDSI）、相对阴茎大小指数（RPSI）、雌性平均阴茎长度（FPL）和性畸变受影响雌性的百分比（%I）来确定每个地点的性畸变水平。在评估期间观察到性畸变强度有显著的时间下降。2003年后性畸变减少明显，尽管从2005年到2007年改善最为显著，这可能是由于欧盟理事会第782/2003号条例的实施，该条例禁止在悬挂欧盟旗帜的船只上进一步使用三丁基锡（TBT）防污漆。尽管有这些改善，但对蛎鹬雌性组织和水中的OT分析表明，研究区域仍有近期的TBT输入。
