{"refrec":{"BRefID":39389,"RR":"<b>Marty, J.-C.; Chiavérini, J.; Pizay, M.D.; Avril, B.</b> (2002). Seasonal and interannual dynamics of nutrients and phytoplankton pigments in the western Mediterranean Sea at the DYFAMED time-series station (1991-1999). <i>Deep-Sea Res., Part 2, Top. Stud. Oceanogr. 49(11)</i>: 1965-1985","BEntID":39389,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Deep-Sea Res., Part II, Top. Stud. Oceanogr. 49(11)</i>: 1965-1985","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Marty, J.-C.; Chiavérini, J.; Pizay, M.D.; Avril, B.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Marty, J.-C. <i>et al.</i>","Englishabstract":"The phytoplankton dynamics in the western Mediterranean Sea has been studied at the DYFAMED (France JGOFS) time-series station from 1991 to 1999 by means of an analysis of monthly pigment profiles in the 0-200-m layer. The site (43degrees25'N, 7degrees52'E) is located in the central zone of the Ligurian Sea, NW-Mediterranean Sea, and is protected from coastal inputs by the presence of Ligurian current flowing along the coast. The seasonal hydrological regime varies from winter mixing (January-February) to strong thermal stratification in summer and fall. Nutrients are depleted in the surface layer during summer oligotrophic conditions and re-injected to the surface layer during winter mixing. The nitrate-to-phosphate ratio is about 20 in deep waters, which indicates a general tendency to P-limitation. Nevertheless our 9-year study indicates that N/P ratio in surface layer is always higher than 20 (up to 60) during oligotrophic period and generally lower than 20 during the rest of the year. This indicates a probable shift from N-limitation in winter to P-limitation in summer. Seasonal variations of phytoplankton dynamics have been characterized using the HPLC pigment approach, and related to hydrological conditions and distribution of nutrients. The 0-200 m integrated chlorophyll a during the 9-year study is highly variable (from 12 to 230 mg m(-2)). The phytoplankton biomass is dominated by 19'-hexanoyloxyfucoxanthin-containing algae all the year round, but the relative abundance of the characteristic populations with respect to total biomass indicates a seasonal succession. The contribution of diatoms to biomass, as inferred from facoxanthin, is maximal in January or February and is followed 1 month later by 19'-hexanoyloxyfiicoxanthin-containing nano flagellates. The ratio of zeaxanthin (associated to cyanobacteria) to chlorophyll a is highest at the beginning of the stratified period, just before maximal contribution of divinyl-chlorophyll a (prochlorophytes) to biomass. There was a general increase in total phytoplankton biomass during the 9-year study. This increase seems mainly due to small-sized phytoplankton as a specific response to the lengthening of the summer stratification period favoring the growth of species supporting the regenerated production.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Seasonal and interannual dynamics of nutrients and phytoplankton pigments in the western Mediterranean Sea at the DYFAMED time-series station (1991-1999)","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":2002,"MonPub":null,"DateUpdate":"2003-09-16","DateCreate":"2003-09-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000176218500002","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":39389,"PubliDate":2002,"Pagination":"1965-1985","XtraPublOfAnaID":null,"ISBN":null,"Volume":"49","Issue":"11","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45197,"SerRR":"Deep-Sea Research, Part II. Topical Studies in Oceanography. Pergamon: Oxford.  ISSN 0967-0645; e-ISSN 1879-0100","StandardTitleSer":"Deep-Sea Research, Part II. Topical Studies in Oceanography","ISSN":"0967-0645","AbbrevSer":"Deep-Sea Res., Part II, Top. Stud. Oceanogr.","StandardTitleMon":null,"StartPage":1965,"Pages":21,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Marty","Firstname":"Jean-Claude","Initials":"J.-C.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":39389,"AutID":40408,"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":"Chiavérini","Firstname":null,"Initials":"J.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":39389,"AutID":40409,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Pizay","Firstname":null,"Initials":"M.D.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":39389,"AutID":40410,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Avril","Firstname":"Bernard","Initials":"B.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":39389,"AutID":32162,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":666,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":null,"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Pergamon","City":"Oxford"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":null,"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":39389,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":null,"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":"Haspeslagh, Jan, J.","newSesDate":{"date":"2003-09-16 09:16:15.990000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Haspeslagh, Jan, J.","updSesDate":{"date":"2003-09-16 09:16:15.990000","timezone_type":3,"timezone":"Europe/Brussels"}}}