{"refrec":{"BRefID":323258,"RR":"<b>Belbachir, N.E.; Lepoint, G.; Mezali, K.</b> (2019). Comparison of isotopic niches of four sea cucumbers species (Holothuroidea: Echinodermata) inhabiting two seagrass meadows in the southwestern Mediterranean Sea (Mostaganem, Algeria). <i>Belg. J. Zool. 149(1)</i>: 95-106. <a href=\"https://dx.doi.org/10.26496/bjz.2019.32\" target=\"_blank\">https://dx.doi.org/10.26496/bjz.2019.32</a>","BEntID":316730,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Belg. J. Zool. 149(1)</i>: 95-106. <a href=\"https://dx.doi.org/10.26496/bjz.2019.32\" target=\"_blank\">https://dx.doi.org/10.26496/bjz.2019.32</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Belbachir, N.E.; Lepoint, G.; Mezali, K.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Belbachir, N.E.; Lepoint, G.; Mezali, K.","Englishabstract":"Among the fauna inhabiting the <em>Posidonia oceanica</em> seagrass meadow, holothurians are particularly abundant and provide essential ecological roles, including organic matter recycling within seagrass sediments. This study aimed to investigate the trophic niche of four holothurians of the order Holothuriida [<em>Holothuria poli</em> (Delle Chiaje, 1824), <em>Holothuria tubulosa</em> (Gmelin, 1791), <em>Holothuria sanctori</em> (Delle Chiaje, 1823) and <em>Holothuria forskali</em> (Delle Chiaje, 1823)] inhabiting <em>P. oceanica</em> meadows, through the measurement of nitrogen and carbon stable isotope ratios. Two shallow and contrasting sites of the littoral region of Mostaganem (North West Algeria) were chosen. The first site, located in Stidia, is weakly impacted by human activities. The second site, located in Salamandre, is highly impacted by human activities (industries, harbor facilities). High values of δ15N in holothurians and their food sources were observed at both sites. The δ13C values showed a lower contribution from detritic <em>Posidonia</em> than in other areas. This could be a consequence of <em>P. oceanica</em> bed degradation in the studied area. The stable isotope approach did not reveal dietary differences between species, and the four holothurians species exhibited significant isotopic niche overlap. However, niche sizes differed between species showing more variable individual trophic diversity in some species (<em>H. tubulosa</em> and <em>H. sanctori</em> in Salamandre; <em>H. forskali</em> in Stidia). If niche segregation does occur, it is not in terms of general resource use. More likely, it would be the abundance of food sources, the different life habits and their micro-habitats that may explain their co-existence in the <em>P. oceanica</em> seagrass meadow.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Comparison of isotopic niches of four sea cucumbers species (Holothuroidea: Echinodermata) inhabiting two seagrass meadows in the southwestern Mediterranean Sea (Mostaganem, Algeria)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-29 01:32:35.901424","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Echinodermata; holothuroids; stable isotopes; Mediterranean","OtherDescriptors":null,"Notes":null,"AnaPub":2019,"MonPub":null,"DateUpdate":"2020-04-08","DateCreate":"2020-04-07","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000510859200002","VABBcode":null,"OpenAcc":1,"DOI":"10.26496/bjz.2019.32"},"refs":null,"anarec":{"AnaID":323258,"PubliDate":2019,"Pagination":"95-106","XtraPublOfAnaID":null,"ISBN":null,"Volume":"149","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":44108,"SerRR":"Belgian Journal of Zoology. Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Gent.  ISSN 0777-6276; e-ISSN 2295-0451","StandardTitleSer":"Belgian Journal of Zoology","ISSN":"0777-6276","AbbrevSer":"Belg. J. Zool.","StandardTitleMon":null,"StartPage":95,"Pages":12,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Belbachir","Firstname":"Nor Eddine","Initials":"N.E.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":316730,"AutID":411916,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Lepoint","Firstname":"Gilles","Initials":"G.","Affiliation":"MARE Centre, Laboratory of Oceanology, UR FOCUS, University of Liège","Discriminator":null,"CorporateFlag":0,"BEntID":316730,"AutID":412214,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Université de Liège; Faculté des Sciences; Département de Biologie, Ecologie et Evolution; Laboratoire d'Océanologie Biologique","ORCID":"0000-0003-4375-0357","PersID":7091,"InsID":459},{"AutName":"Mezali","Firstname":"Karim","Initials":"K.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":316730,"AutID":256386,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":343581,"LibID":36,"BRefID":323258,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":null,"ShelfLocCode":"343581","RFID":null,"PaidValue":null,"Medium":"Server","Description":"VLIZ Open Access","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Open access","URL":null,"ClassifID":53,"Classification":"Open access","ReqLink":null,"ClassifTypID":1,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":null,"InternalReq":0,"LoggedInReq":0,"Disclaimer":null,"DutchDisclaimer":null,"FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique","City":"Gent"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":[{"TaxTerm":"Echinodermata"},{"TaxTerm":"Holothuroidea"}],"geotermsASFA":null,"collections":[{"Collection":"OMA - Open Marien Archief","ShortName":"OMA"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"222":{"SpName":"BMB - Belgische Mariene Bibliografie","SpColID":222,"ParSpColID":null,"TopParID":null,"ShortName":"BMB","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"BMB"},"221":{"SpName":"OMA - Open Marien Archief","SpColID":221,"ParSpColID":null,"TopParID":null,"ShortName":"OMA","URLLocation":null,"LibID":36,"OpenRepoFlag":1,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OMA"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":316730,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":316730,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.26496/bjz.2019.32","externalID":"10.26496/bjz.2019.32","URLTypeCode":"DOI","URLID":82390,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":null,"taxterms":[{"TaxTerm":"Echinodermata [Echinoderms]","AphiaID":1806,"TaxtID":15377},{"TaxTerm":"Holothuroidea [Sea cucumbers]","AphiaID":123083,"TaxtID":19545}],"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":[{"TaxTerm":"Echinodermata","DutchTerm":"Stekelhuidigen","AphiaID":1806,"TaxtID":15377},{"TaxTerm":"Holothuroidea","DutchTerm":"Zeekomkommers","AphiaID":123083,"TaxtID":19545}],"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Lyssens, Liesbeth, L.","newSesDate":{"date":"2020-04-07 18:44:11.530000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2020-04-08 07:16:35.150000","timezone_type":3,"timezone":"Europe/Brussels"}}}