{"refrec":{"BRefID":53880,"RR":"<b>Seys, J.; Offringa, H.; Meire, P.; Van Waeyenberge, J.; Kuijken, E.</b> (2002). Long-term changes in oil pollution off the Belgian coast: evidence from beached bird monitoring, <b><i>in</i></b>: Seys, J. (2001). <i>Het gebruik van zee- en kustvogelgegevens ter ondersteuning van het beleid en beheer van de Belgische kustwateren.</i> pp. 97-107","BEntID":290976,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Seys, J. (2001). <i>Sea- and coastal bird data as tools in the policy and management of Belgian marine waters = Het gebruik van zee- en kustvogelgegevens ter ondersteuning van het beleid en beheer van de Belgische kustwateren.</i> pp. 97-107","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Seys, J.; Offringa, H.; Meire, P.; Van Waeyenberge, J.; Kuijken, E.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Seys, J. <i>et al.</i>","Englishabstract":"Trends in oil pollution in the southernmost (Belgian) part of the North Sea were analysed using a dataset of 37 years (1962-99) of annual national beached bird surveys conducted in February each year. The most abundant seabird groups represented in the beached birds were auks (31 %), gulls (28%), scoters (17%) and Kittiwake (9%). Oil rates of most bird species/taxa indicate a decline in oil pollution, though only Larus-gulls, Common Guillemot and Razorbill show significant reductions. The slope in the linear decreasing trend is steeper in inshore and midshore species, than in pelagic species. A power analysis of the results demonstrated that statistically significant trends in annual indices would be expected within 17 years for Razorbill, 29 years for Larus-gulls and 31 years for Common Guillemot. For other species/taxa, at least 50 years of surveying would be required. Long-term oil pollution monitoring in Belgium should be continued with a major focus on a set of abundant bird taxa, sensitive to oil-pollution and occurring in various marine habitats. Most appropriate for this purpose are grebes (inshore), Larus-gulls, Common Guillemot and Razorbill (midshore) and Kittiwake and Fulmar (offshore).","AbstractOtherLang":null,"BibLvlCode":"AM","StandardTitle":"Long-term changes in oil pollution off the Belgian coast: evidence from beached bird monitoring","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":"beached bird surveys","Notes":null,"AnaPub":2002,"MonPub":null,"DateUpdate":"2018-07-18","DateCreate":"2003-11-26","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":53880,"PubliDate":2002,"Pagination":"97-107","XtraPublOfAnaID":null,"ISBN":null,"Volume":null,"Issue":null,"BRefMon":20601,"BRefMonRR":"<b>Seys, J.</b> (2001). Sea- and coastal bird data as tools in the policy and management of Belgian marine waters = Het gebruik van zee- en kustvogelgegevens ter ondersteuning van het beleid en beheer van de Belgische kustwateren. PhD Thesis. 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