{"refrec":{"BRefID":38633,"RR":"<b>Agawin, N.S.R.; Duarte, C.M.; Augustí, S.</b> (2000). Response of Mediterranean <i>Synechococcus</i> growth and loss rates to experimental nutrient inputs. <i>Mar. Ecol. Prog. Ser. 206</i>: 97-106. <a href=\"https://dx.doi.org/10.3354/meps206097\" target=\"_blank\">https://dx.doi.org/10.3354/meps206097</a>","BEntID":38633,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mar. Ecol. Prog. Ser. 206</i>: 97-106. <a href=\"https://dx.doi.org/10.3354/meps206097\" target=\"_blank\">https://dx.doi.org/10.3354/meps206097</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Agawin, N.S.R.; Duarte, C.M.; Augustí, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Agawin, N.S.R.; Duarte, C.M.; Augustí, S.","Englishabstract":"The response of <i>Synechococcus</i> sp. growth, primary production and loss rates was examined in a large-scale mesocosm nutrient enrichment experiment in a coastal NW Mediterranean bay community during the summer of 1997. The mesocosm units (33 m<sup>3</sup>) received N, P and Si at a stochiometric ratio of 20N: 7Si: 1P, at the normal nutrient loading rate for the site (5 mmol N m<sup>-2</sup> d<sup>-1</sup>), and  at 0.5-, 2-, 4-, 8-, and 16-fold the normal nutrient loading input into the bay. Growth and primary production of <i>Synechococcus</i> during the early phase of the experiment increased 2- to 4-fold in the mesocosms receiving =4-fold the normal nutrient loading rate compared to those receiving less, providing evidence of nutrient-limited growth of the population in the Mediterranean bay studied during that summer. <i>Synechococcus</i> growth was saturated at approximately 0.25 µM DIN, and was unsustained as nutrient inputs continued, showing growth inhibition at relatively high DIN levels  (>8 µM). The response of loss rates of <i>Synechococcus</i> to the experimental nutrient inputs was similar to the growth responses, although the dynamics of <i>Synechococcus</i> population size seemed to be aninterplay between growth and loss rates. The population size of <i>Synechococcus</i> increased early by almost 3-fold, indicative of limitation of <i>Synechococcus</i> biomass in the Bay of Blanes during summer.  The increase is suggested to result from the lag between Synechococcus growth and loss rate responses during the early phase of the experiment when growth rates exceeded loss rates, resulting in an increase in net production with increased loading. The increase of <i>Synechococcus</i> population size towards the end of the experiment was a result of decreased grazing pressure on <i>Synechococcus</i>, despite the low growth rates of <i>Synechococcus</i> at the high nutrient inputs. Grazing of <i>Synechococcus</i> is suggested to be the main loss process (>50% of calculated loss rates) except towards the end of the experiment when grazing was only 13% of the calculated losses.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Response of Mediterranean <i>Synechococcus</i> growth and loss rates to experimental nutrient inputs","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-19 01:31:15.293596","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2000,"MonPub":null,"DateUpdate":"2014-06-04","DateCreate":"2003-08-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000165693700009","VABBcode":null,"OpenAcc":0,"DOI":"10.3354/meps206097"},"refs":null,"anarec":{"AnaID":38633,"PubliDate":2000,"Pagination":"97-106","XtraPublOfAnaID":null,"ISBN":null,"Volume":"206","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43354,"SerRR":"Marine Ecology Progress Series. 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