{"refrec":{"BRefID":78792,"RR":"Austen, M.C.; Widdicombe, S.<\/b> (1998). Experimental evidence of effects of the heart urchin Brissopsis lyrifera<\/i> on associated subtidal meiobenthic nematode communities. J. Exp. Mar. Biol. Ecol. 222(1-2)<\/i>: 219-238. https:\/\/dx.doi.org\/10.1016\/S0022-0981(97)00146-9<\/a>","BEntID":74321,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". J. Exp. Mar. Biol. Ecol. 222(1-2)<\/i>: 219-238. https:\/\/dx.doi.org\/10.1016\/S0022-0981(97)00146-9<\/a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Austen, M.C.; Widdicombe, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Austen, M.C.; Widdicombe, S.","Englishabstract":"An enclosure experiment was carried out in the benthic mesocosm facility of the Norwegian Institute for Water Research at Solbergstrand, Norway, to determine the effects of the predatory\/disturbance activities of the heart urchin Brissopsis lyrifera<\/i> on natural meiobenthic nematode communities. Four 1 m2 boxes, filled to a depth of 22 cm with fresh sediment containing meiobenthic communities which had been collected from a 30 m deep site in the Oslofjord, were placed in the mesocosm. Large areas of the boxes were partitioned off with coarse mesh, 30 cm diameter cages which allowed meiofauna to move freely around within the box but retained the Brissopsis within the caged areas. Brissopsis<\/i> were added to the cages at two densities (equivalent to 28 and 71 individuals m\u22122, respectively) with two replicates of each treatment per box (i.e. four cages per box). Meiofauna was sampled inside and outside the cages of each box after 20 weeks. Multivariate nematode community structure varied between the uncaged sediment and the Brissopsis<\/i> cages and between the cages with different Brissopsis <\/i> densities. Univariate measures of nematode community structure such as abundance were unaffected by the Brissopsis <\/i> treatments. The more abundant species generally decreased in the presence of Brissopsis<\/i> with the exception of Odontophora<\/i> sp. whose abundance increased with increasing Brissopsis<\/i> density. The nematode abundance in different feeding groups varied between treatments suggesting that Brissopsis<\/i> altered the functional composition of the nematode community. High densities of Brissopsis<\/i> are quite patchy in the Oslofjord and Brissopsis<\/i> may act only locally as a keystone species. However the presence of these localised high density patches of Brissopsis <\/i> in the Oslofjord may increase the regional heterogeneity of nematode communities.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Experimental evidence of effects of the heart urchin Brissopsis lyrifera<\/i> on associated subtidal meiobenthic nematode communities","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-15 01:31:17.872285","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1998,"MonPub":null,"DateUpdate":"2006-01-17","DateCreate":"2006-01-17","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000072618500014","VABBcode":null,"OpenAcc":0,"DOI":"10.1016\/S0022-0981(97)00146-9"},"refs":null,"anarec":{"AnaID":78792,"PubliDate":1998,"Pagination":"219-238","XtraPublOfAnaID":null,"ISBN":null,"Volume":"222","Issue":"1-2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43229,"SerRR":"Journal of Experimental Marine Biology and Ecology. Elsevier: New York. ISSN 0022-0981; e-ISSN 1879-1697","StandardTitleSer":"Journal of Experimental Marine Biology and Ecology","ISSN":"0022-0981","AbbrevSer":"J. Exp. Mar. Biol. Ecol.","StandardTitleMon":null,"StartPage":219,"Pages":20,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Austen","Firstname":"Melanie","Initials":"M.C.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":74321,"AutID":11179,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":4284,"InsID":null},{"AutName":"Widdicombe","Firstname":"Stephen","Initials":"S.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":74321,"AutID":41974,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":8441,"InsID":null}],"mapdetails":null,"datasets":[{"DasID":702,"Acronym":null,"Citation":"Austen, M. (1995). Nematodes of Solbergstrand, Norway (in presence and absence of Brissopsis). Plymouth Marine Laboratory (PML), UK.","StandardTitle":"Nematodes of Solbergstrand, Norway (in presence and absence of Brissopsis<\/i>)","RelationID":3,"DOI":null}],"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":null,"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Elsevier","City":"New York"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":[{"Collection":"Marine Biodiversity and Ecosystem Functioning","ShortName":"marbef"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"329":{"SpName":"Manuela","SpColID":329,"ParSpColID":38,"TopParID":38,"ShortName":"manuela","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":38,"SpColPath":"marbef\/manuela"},"38":{"SpName":"Marine Biodiversity and Ecosystem Functioning","SpColID":38,"ParSpColID":null,"TopParID":null,"ShortName":"marbef","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"marbef"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":74321,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https:\/\/dx.doi.org\/10.1016\/S0022-0981(97)00146-9","externalID":"10.1016\/S0022-0981(97)00146-9","URLTypeCode":"DOI","URLID":110390,"URLTypID":13,"URLType":"DOI","URLPrefix":"http:\/\/dx.doi.org\/"}],"thesterms":null,"taxterms":null,"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":null,"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Cuvelier, Daphne, D.","newSesDate":{"date":"2006-01-17 12:12:08.943000","timezone_type":3,"timezone":"Europe\/Brussels"},"updSesName":"Cuvelier, Daphne, D.","updSesDate":{"date":"2006-01-17 12:12:08.943000","timezone_type":3,"timezone":"Europe\/Brussels"}}}