{"refrec":{"BRefID":16828,"RR":"<b>Newell, R.C.; Lucas, M.I.; Painting, S.J.; Field, J.G.</b> (1985). Some estimates of carbon and nitrogen flux through pelagic communities in coastal waters, <b><i>in</i></b>: Gibbs, P.E. (Ed.) <i>Proceedings of the 19th European Marine Biology Symposium, Plymouth, Devon, UK, 16-21 September 1984.</i> pp. 51-59","BEntID":16828,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Gibbs, P.E. (Ed.) <i>Proceedings of the Nineteenth European Marine Biology Symposium, Plymouth, Devon, UK, 16-21 September 1984. European Marine Biology Symposia,</i> 19: pp. 51-59","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Newell, R.C.; Lucas, M.I.; Painting, S.J.; Field, J.G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Newell, R.C. <i>et al.</i>","Englishabstract":"Evidence is presented which suggests that the microheterotrophic pathway in pelagic systems may differ significantly between poorly-productive systems and upwelling or decomposer-dominated nearshore areas. Carbon flow through the microheterotrophic community may also vary according to the stage of a phytoplankton bloom in nearshore eutrophic systems. The relative significance of phytoplankton primary production and bacterial production at the peak, during the decline, and following the subsequent recovery phase of a phytoplankton bloom in the Southern Benguela upwelling system is described. It is shown that bacterial production is sustained at 1000-2000 mg C .m<sup>-2</sup> .d<sup>-1</sup> despite a decline in primary production from approximately 5000 mg C. m<sup>-2</sup> .d<sup>-1</sup> to only 700 mg C .m<sup>-2</sup> .d<sup>-1</sup> during a survey between 15 March and 20 March 1983. Bacterial carbon consumption is estimated to account for approximately 75% of primary production at the peak of a bloom, much as reported for the Peruvian upwelling system, but appears to be sustained by utilisation of the biomass of senescent phytoplankton cells during the collapse phase of a bloom. Estimates of nitrogen flow based on carbon flux are in reasonable agreement with those based on the <sup>15</sup>N-isotopic dilution technique. They suggest that, at the peak of a bloom, nitrogen regeneration through the bacterial community may account for approximately 40% of the nitrogen requirements of primary production. Following the collapse of the bloom, however, the community becomes a net mineraliser and may be responsible for the subsequent restoration of primary production by phytoflagellates.","AbstractOtherLang":null,"BibLvlCode":"AMS","StandardTitle":"Some estimates of carbon and nitrogen flux through pelagic communities in coastal waters","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-08 01:30:39.252502","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1985,"MonPub":null,"DateUpdate":"2001-09-17","DateCreate":"2001-08-29","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":16828,"PubliDate":1985,"Pagination":"51-59","XtraPublOfAnaID":null,"ISBN":"0-521-30294-3","Volume":"19","Issue":null,"BRefMon":16823,"BRefMonRR":"<b>Gibbs, P.E. (Ed.)</b> (1985). Proceedings of the Nineteenth European Marine Biology Symposium, Plymouth, Devon, UK, 16-21 September 1984. <i>European Marine Biology Symposia</i>, 19. Cambridge University Press: Cambridge. ISBN 0-521-30294-3. 541 pp.","BRefXtra":null,"BRefXtraRR":null,"SerBRefID":20275,"SerRR":"European Marine Biology Symposia.","StandardTitleSer":"European Marine Biology Symposia","ISSN":null,"AbbrevSer":null,"StandardTitleMon":"Proceedings of the Nineteenth European Marine Biology Symposium, Plymouth, Devon, UK, 16-21 September 1984","StartPage":51,"Pages":9,"ToPubliDate":null,"BRefBibLvlCode":"MS","SerNotes":null,"AutString":"Gibbs, P.E. 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