{"refrec":{"BRefID":204724,"RR":"<b>Braeckman, U.; Provoost, P.; Sabbe, K.; Middelburg, J.J.; Soetaert, K.; Vincx, M.; Vanaverbeke, J.</b> (2011). Temporal variation in macrobenthic diet as inferred from fatty acid biomarkers, <b><i>in</i></b>: Braeckman, U. <i>Macrobenthos structuring the sea floor: importance of its functional biodiversity for the benthic ecosystem = De structurerende rol van macrobenthos in de zeebodem: belang van de functionele biodiversiteit voor het benthische ecosysteem.</i> pp. 103-130","BEntID":196892,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Braeckman, U. <i>Macrobenthos structuring the sea floor: importance of its functional biodiversity for the benthic ecosystem = De structurerende rol van macrobenthos in de zeebodem: belang van de functionele biodiversiteit voor het benthische ecosysteem.</i> pp. 103-130","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Braeckman, U.; Provoost, P.; Sabbe, K.; Middelburg, J.J.; Soetaert, K.; Vincx, M.; Vanaverbeke, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Braeckman, U. <i>et al.</i>","Englishabstract":"We investigated the temporal variation of pelagic and benthic food sources in the diet of two marine polychaetes: a macrobenthic omnivore (<i>Nephtys hombergii</i>) and a suspension-deposit feeder (<i>Lanice conchilega</i>) by means of fatty acid (FA) biomarkers and compound-specific stable isotope analysis (CSIA). FA biomarkers in the suspended particulate matter mirrored phytoplankton dynamics in the water column, consisting of a small diatom dominance early spring, succeeded by a mass <i>Phaeocystis</i> peak followed by a mixed diatom-dinoflagellate bloom. Deposition and subsequent bacterial degradation of the phytoplankton bloom were reflected in sediment FA biomarkers. The main distinction in FA biomarker concentration within macrobenthic tissue was observed at the species level (50% of variation), the diet of <i>L. conchilega</i> consisting of bacteria and diatoms and that of <i>N. hombergii</i> also of diatoms, but including more dinoflagellates and invertebrates. Temporal variation explained almost 20%: the two species retained more bacterial and <i>Phaeocystis</i> markers before the bloom, while they accumulated more polyunsaturated FA after the bloom. CSIA revealed increased accumulation or biosynthesis of poly-unsaturated FA from the suspended matter in <i>L. conchilega</i> upon bloom deposition, which is probably related to energy storage for gametogenesis. In contrast, bloom–dependent accumulation or biosynthesis of FA was not detected in <i>N. hombergii</i<, probably because of its reliance on invertebrate prey.","AbstractOtherLang":null,"BibLvlCode":"AM","StandardTitle":"Temporal variation in macrobenthic diet as inferred from fatty acid biomarkers","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":2011,"MonPub":null,"DateUpdate":"2011-05-16","DateCreate":"2011-05-05","SecASFANote":null,"ConfID":null,"PeerRev":null,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":204724,"PubliDate":2011,"Pagination":"103-130","XtraPublOfAnaID":null,"ISBN":"9789490695590","Volume":null,"Issue":null,"BRefMon":204685,"BRefMonRR":"<b>Braeckman, U.</b> (2011). Macrobenthos structuring the sea floor: importance of its functional biodiversity for the benthic ecosystem = De structurerende rol van macrobenthos in de zeebodem: belang van de functionele biodiversiteit voor het benthische ecosysteem. PhD Thesis. Marine Biology Research Group: Gent. 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