{"refrec":{"BRefID":208544,"RR":"<b>Kinds, A.</b> (2011). Dietary plasticity in three populations of the scavenger <i>Lethrinus mahsena</i> in a Kenyan coral reef ecosystem as revealed by gut contents and trophic markers. MSc Thesis. Faculty of Sciences, Ghent University/Kenya Marine and Fisheries Research Institute: Gent and Mombasa.  40 pp.","BEntID":200533,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". MSc Thesis. Faculty of Sciences, Ghent University/Kenya Marine and Fisheries Research Institute: Gent and Mombasa.  40 pp.","DocTypID":5,"DocType":"Book/Monograph","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Kinds, A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Kinds, A.","Englishabstract":"Overgrazing of seagrasses by sea urchins is known to be one of the key threats to seagrass habitat. What causes these outbreaks of sea urchins (mainly Tripneustes gratilla) is not yet fully understood, but it has been suggested that overfishing of sea urchin predators could be major driver. This study explored feeding patterns and dietary plasticity of a heavily fished urchin predator, Lethrinus mahsena. The diet of L. mahsena from three locations along the southern Kenyan coast (Nail, Shelly and Vipingo) was assessed using three different techniques: gut content analysis, fatty acid analysis and stable isotope analysis. The general diet of L. mahsena was dominated by crabs, fish and squid. Sea urchins made up only a small fraction of the gut contents in Nail and Vipingo, whereas in Shelly it was the second most important prey item. Based on both frequency of occurrence of preys and gravimetric data, the Shelly population was separated from the Nyali and the Vipingo populations. Also fatty acid and stable isotope data defined the Shelly population as a distinct group. However, this separation may be a reflection of different feeding habitats (seagrass beds vs. reef flats) rather than a difference in prey preference. Since fatty acid profiles of sea urchins did not reveal specific ‘urchin’ biomarkers, we were unable to assess the importance of sea urchins in the long term diet of L. mahsena. However, the relative trophic position of fish from Shelly was significantly lower than for the other populations, which may be related to the higher incidence of sea urchins (herbivores) in Shelly stomachs.","AbstractOtherLang":null,"BibLvlCode":"M","StandardTitle":"Dietary plasticity in three populations of the scavenger <i>Lethrinus mahsena</i> in a Kenyan coral reef ecosystem as revealed by gut contents and trophic markers","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":null,"MonPub":2011,"DateUpdate":"2012-12-12","DateCreate":"2011-10-17","SecASFANote":null,"ConfID":null,"PeerRev":null,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":null,"monrec":{"MonID":208544,"ISBN":null,"PubliDate":2011,"IssueDate":null,"Volume":null,"Issue":null,"Pagination":"40","Place":"Gent and Mombasa","Edition":null,"BRefXtra":null,"BRefXtraRR":null,"SerID":null,"SerRR":null,"Ser2BRefID":null,"Ser2RR":null,"StandardTitleSer":null,"ISSN":null,"AbbrevSer":null,"Degree":"MSc","ThesisID":208544,"InsID":9744,"Acronym":"EMBC+","FullStandardName":"Universiteit Gent; Faculteit Wetenschappen; Vakgroep Biologie; Afdeling Mariene Biologie; Erasmus Mundus MSC in Marine Biodiversity and Conservation","ToPubliDate":null,"SerNotes":null,"eISBN":null,"Pages":40},"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Kinds","Firstname":"Arne","Initials":"A.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":200533,"AutID":133536,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":"0000-0002-8156-1429","PersID":26117,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":227004,"LibID":36,"BRefID":208544,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"227004","RFID":null,"PaidValue":null,"Medium":"Server","Description":"Interne VLIZ documenten","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Non-open access","URL":null,"ClassifID":228,"Classification":"Non-open access","ReqLink":1,"ClassifTypID":3,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":1,"InternalReq":1,"LoggedInReq":1,"Disclaimer":"Disclaimer_VLIZ_Intern","DutchDisclaimer":"<p>Deze publicatie is enkel beschikbaar voor persoonlijk gebruik binnen de Innovocean site <br />en mag op geen enkele manier verder worden verspreid.</p>","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":[{"LitStyID":7,"Style":"Dissertation"}],"thespers":[{"PersID":223,"Surname":"De Troch","Firstname":"Marleen","Initials":"M.","Role":"Promotor"}],"arch2discl":null,"SERpubls":null,"MONpubls":null,"pictures":[],"thestermsPath":[{"ThesaurusTerm":"Fatty acids","ThestID":3039,"Acronym":"ASFA","ThesTermPath":"Acids > Organic compounds > Organic acids > Fatty acids"},{"ThesaurusTerm":"Biomarkers","ThestID":9475,"Acronym":"ASFA","ThesTermPath":"Biomarkers"},{"ThesaurusTerm":"Diets","ThestID":2312,"Acronym":"ASFA","ThesTermPath":"Diets"},{"ThesaurusTerm":"Stable isotopes","ThestID":164496,"Acronym":"CAB","ThesTermPath":"Isotopes > Stable isotopes"},{"ThesaurusTerm":"Coral reefs","ThestID":1885,"Acronym":"ASFA","ThesTermPath":"Reefs > Biogenic deposits > Coral reefs"},{"ThesaurusTerm":"Stomach content","ThestID":8038,"Acronym":"ASFA","ThesTermPath":"Stomach content"}],"thestermsASFA":[{"ThesaurusTerm":"Biomarkers"},{"ThesaurusTerm":"Coral reefs"},{"ThesaurusTerm":"Diets"},{"ThesaurusTerm":"Fatty acids"},{"ThesaurusTerm":"Stable isotopes"},{"ThesaurusTerm":"Stomach content"}],"taxtermsASFA":[{"TaxTerm":"Echinoidea"},{"TaxTerm":"Lethrinus mahsena"}],"geotermsASFA":[{"GeoTerm":"Nyali"}],"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":{"801":{"SpName":"Belgian Researchers on Kenyan topics - 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