{"refrec":{"BRefID":105140,"RR":"<b>Piontkovski, S.A.; Landry, M.R.; Finenko, Z.Z.; Kovalev, A.V.; Williams, R.; Gallienne, C.P.; Mishonov, A.V.; Skryabin, V.A.; Tokarev, Y.N.; Nikolsky, V.N.</b> (2003). Plankton communities of the South Atlantic Ocean anticyclonic gyre = Communautés planctoniques du tourbillon anticyclonique de l’Atlantique Sud. <i>Oceanol. Acta 26</i>: 255-268","BEntID":100132,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":null,"RefStringPartII":". <i>Oceanol. Acta 26</i>: 255-268","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Piontkovski, S.A.; Landry, M.R.; Finenko, Z.Z.; Kovalev, A.V.; Williams, R.; Gallienne, C.P.; Mishonov, A.V.; Skryabin, V.A.; Tokarev, Y.N.; Nikolsky, V.N.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Piontkovski, S.A. <i>et al.</i>","Englishabstract":"Data collected during cruises of the Former Soviet Union (in 1963-1989) and the British Atlantic meridional transect program (in 1995-1999) were used to analyse macroscale patterns in phyto- and zooplankton biomass, size structure, species diversity, chlorophyll a, and plankton bioluminescence in the macroscale anticyclonic gyre of the South Atlantic Ocean. The spatial pattern of bioluminescence intensity was in good agreement with that of remotely sensed (CZCS) chlorophyll a, phosphate, salinity, and copepod species diversity index distributions especially in terms of geographic inclinations of the isolines, both associated with the north-westward pattern off the South equatorial current. Among the 416 copepod species recorded in samples, 51 species were noted throughout the whole gyre. On the other hand, there were a number of species found only in one of the currents. The mesozooplankton biomass size spectra (calculated in carbon units), exhibited a fairly stable slope of the curve from the eastern periphery of the gyre to its centre. The British Atlantic meridional transect program meridional transect through the western part of the gyre showed mesozooplankton size spectra in greater detail between the equator and 50° S. Although the spectra change slowly along the transect as far as 36° S, there is a general trend toward increasing slopes from the equatorial region to the oligotrophic central gyre. The calculated phyto-to-zooplankton ratio indicated that for the tropical anticyclonic gyres, the mesozooplankton carbon biomass could be represented as the exponential function of the phytoplankton carbon.","AbstractOtherLang":"Les données collectées durant les campagnes de l’ex-URSS (1963 à 1989) et la section britannique dans l'Atlantique Sud (1995-1999) permettent d’analyser la distribution macro-échelle du phytoplancton et du zooplancton, la structure de taille, la diversité spécifique, la teneur en chlorophylle a, et la bioluminescence du plancton dans le tourbillon phytoplanctonique de l’Atlantique Sud. La répartition de la bioluminescence est en bon accord avec celle de la chlorophylle mesurée par télédétection (CZCS), les phosphates, la salinité et l’indice de diversité des copépodes. Cette répartition suit l’inclinaison des isolignes liée à la distribution générale du nord vers l’ouest au large du courant sud-équatorial. Parmi les 416 espèces de copépodes, 51 se rencontrent dans tout le tourbillon; à l’inverse, nombre d’espèces sont spécifiques à l’un des courants. La distribution en taille de la biomasse du mésoplancton, calculée en termes de carbone, suit une courbe à pente constante de la périphérie est au centre du tourbillon. Les sections réalisées par les anglais au travers de la partie ouest du tourbillon permettent de détailler cette répartition en taille du mézooplancton entre l’équateur et 50° S. Bien que le spectre se modifie lentement jusque vers 36° S, la tendance générale est bien à une élévation des pentes de la zone équatoriale au centre oligotrophe du tourbillon. Le taux calculé entre phytoplancton et zooplancton souligne que, pour les tourbillons anticycloniques tropicaux, la biomasse carbonée du mésozooplancton peut être représentée par une fonction exponentielle du carbone phytoplanctonique.","BibLvlCode":"AS","StandardTitle":"Plankton communities of the South Atlantic Ocean anticyclonic gyre = Communautés planctoniques du tourbillon anticyclonique de l’Atlantique Sud","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2003,"MonPub":null,"DateUpdate":"2006-11-21","DateCreate":"2006-11-10","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":105140,"PubliDate":2003,"Pagination":"255-268","XtraPublOfAnaID":null,"ISBN":null,"Volume":"26","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43599,"SerRR":"Oceanologica Acta. 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