{"refrec":{"BRefID":32352,"RR":"<b>Siddall, R.; Pike, A.W.; McVicar, A.H.</b> (1993). Parasites of <i>Buccinum undatum</i> (Mollusca: Prosobranchia) as biological indicators of sewage-sludge dispersal. <i>J. Mar. Biol. Ass. U.K. 73(4)</i>: 931-948. <a href=\"https://dx.doi.org/10.1017/S0025315400034810\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315400034810</a>","BEntID":32352,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Mar. Biol. Ass. U.K. 73(4)</i>: 931-948. <a href=\"https://dx.doi.org/10.1017/S0025315400034810\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315400034810</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Siddall, R.; Pike, A.W.; McVicar, A.H.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Siddall, R.; Pike, A.W.; McVicar, A.H.","Englishabstract":"The common whelk, <i>Buccinum undatum</i> L., was selected as a model host-parasite system in a seasonal study at an \"accumulating\" sewage-sludge dump-site in the Firth of Clyde, Scotland, where marked spatial concentration gradients exist for a variety of trace contaminants in the sediments. A total of 2808 whelks was examined from seven sites over 18 months. The prevalence of larval digenean parasites increased significantly with distance from the dump site from approximately 2% on its periphery to 15.1% at a reference site 3 km from the centre. At a second reference site, 13 km from the dumping area, 19.7% of <i>Buccinum</i> were parasitized. The effects of site, season, sex and parasitism on growth and condition of <i>Buccinum</i> and exposure to sewage sludge on the age-prevalence relationship and host response to infection were examined. Age-frequency distributions of <i>Buccinum</i> were used to compare various sources of mortalities (natural, fishing, pollution and parasite-induced). Patterns in parasite prevalence recorded at the dump site were not correlated with any natural environmental or host-related factors that were examined. The gradient in parasitism in <i>Buccinum</i> is considered to result principally from the toxic effects of trace metals on the micracidium, reducing parasite transmission to the molluscan host.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Parasites of <i>Buccinum undatum</i> (Mollusca: Prosobranchia) as biological indicators of sewage-sludge dispersal","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-14 01:31:05.202786","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1993,"MonPub":null,"DateUpdate":"2003-02-17","DateCreate":"2003-02-17","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1993MH49200013","VABBcode":null,"OpenAcc":0,"DOI":"10.1017/S0025315400034810"},"refs":null,"anarec":{"AnaID":32352,"PubliDate":1993,"Pagination":"931-948","XtraPublOfAnaID":null,"ISBN":null,"Volume":"73","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43277,"SerRR":"Journal of the Marine Biological Association of the United Kingdom. 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