{"refrec":{"BRefID":27104,"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. <i>Belg. J. Zool. 132(2)</i>: 111-118","BEntID":27104,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Belg. J. Zool. 132(2)</i>: 111-118","DocTypID":8,"DocType":"Journal article","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":"AS","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":"2002-09-12","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000177262100004","VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":27104,"PubliDate":2002,"Pagination":"111-118","XtraPublOfAnaID":null,"ISBN":null,"Volume":"132","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":44108,"SerRR":"Belgian Journal of Zoology. 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