?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Recent+heavy+metal+contamination+of+the+Thurne+Broads&rft.creator=Sayer%2C+CD&rft.creator=Boyle%2C+J&rft.creator=Emson%2C+D&rft.creator=Goldsmith%2C+BJ&rft.creator=Patmore%2C+IR&rft.creator=Shilland%2C+J&rft.creator=Yang%2C+H&rft.description=The+banning+of+tributyltin+(TBT)+from+boat+antifouling+paints+in+the+late+1980s+led+to+its%0D%0Areplacement+by+alternative+biocide+additives+(Voulvoulis+et+al.%2C+2000%3B+Marcheselli+et%0D%0Aal.%2C+2010)%2C+including+Cu+(Dahl+%26+Blanck%2C+1996)+and+Zn+as+active+ingredients.+It+has%0D%0Abeen+reported+that+Cu+and+Zn+compounds+associated+with+these+biocides+have%0D%0Acaused+substantial+contamination+of+harbour+and+marina+sediments+(Eklund+et+al.%2C%0D%0A2010%3B+Parks+et+al.%2C+2010)%2C+with+negative+toxic+consequences+for+aquatic+organisms%0D%0A(Ytreberg+et+al.%2C+2010).+Indeed%2C+it+is+evident+that+Cu+and+Zn+compounds+present+in%0D%0Apaint+fragments+are+readily+leached+into+the+water+column+allowing+entry+into+aquatic%0D%0Afood+webs+(Jessop+%26+Turner%2C+2011).+Nevertheless%2C+relatively+little+is+known+regarding%0D%0Aantifoulant-derived+metals+contamination+in+freshwater+lakes.%0D%0AThe+Norfolk+and+Suffolk+Broads+(Eastern+England%2C+UK)+have+been+contaminated+by%0D%0Aantifoulant-derived+heavy+metals%2C+particularly+Cu+and+Zn+which+have+increased+since%0D%0Athe+banning+of+TBT+(post-1987)+in+parts+of+the+boated+system+(Boyle+et+al.%2C+in+prep.).%0D%0AFurther%2C+recent+studies+suggest+that+current+levels+of+sediment+contamination+by+Cu%0D%0Amay+have+negative+ecological+effects+for+aquatic+ecosystems+including+inhibition+of%0D%0Aaquatic+macrophyte+germination+and+performance+(Boyle+et+al.%2C+submitted%3B+S.%0D%0ALambert%2C+unpublished+data).%0D%0AIn+Hickling+Broad+(Thurne+Broads+system)%2C+post-TBT+increases+in+Cu+and+Zn+are+also%0D%0Aevident%2C+with+an+interesting+peak+in+Cu+for+the+late+1990s+in+core+HICK1+(Figure+1).%0D%0AThis+coincides+with+the+large-scale+loss+of+aquatic+macrophytes+(especially%0D%0ACharaceae)+from+the+lake+in+1999+(Barker+et+al.%2C+2008).+HICK1+was+collected+in+2003.%0D%0AIn+the+proposed+study+we+sought+to+gain+a+fuller+understanding+of+recent+metal%0D%0Acontamination+in+Hickling+Broad+up+to+the+present+day%2C+whilst+looking+to+verify+and%0D%0Abetter+contextualise+the+late+1990s+Cu+peak.+Further%2C+we+aimed+to+determine+whether%0D%0Athe+peak+in+Cu+for+Hickling+Broad+was+also+recorded+at+Horsey+Mere+which+is+used+as%0D%0Aa+control+site+in+this+study+i.e.+is+it+just+a+Hickling+phenomenon%3F+Or+is+it+a+Thurne%0D%0ABroads+system-wide+effect%3F&rft.publisher=UCL+Environmental+Change+Research+Centre&rft.date=2015-09&rft.type=Report&rft.language=eng&rft.source=++++(ECRC+Research+Report++165++).+UCL+Environmental+Change+Research+Centre%3A+London%2C+UK.+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10115153%2F1%2Fecrc_report_165_Sayer_Thurne.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10115153%2F&rft.rights=open