{"refrec":{"BRefID":16885,"RR":"<b>Graneli, E.; Graneli, W.; Rydberg, L.</b> (1986). Nutrient limitation at the ecosystem and the phytoplankton community level in the Laholm Bay, south-east Kattegat, <b><i>in</i></b>: Muus, K. (Ed.) <i>Proceedings of the 20th European Marine Biology Symposium: Nutrient Cycling. Processes in Marine Sediments, Hirtshals, Denmark, 9-13 September 1985. Ophelia: International Journal of Marine Biology,</i> 26: pp. 181-194","BEntID":16885,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Muus, K. (Ed.) <i>Proceedings of the 20th European Marine Biology Symposium: Nutrient Cycling. Processes in Marine Sediments, Hirtshals, Denmark, 9-13 September 1985. European Marine Biology Symposia,</i> 20: pp. 181-194","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Graneli, E.; Graneli, W.; Rydberg, L.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Graneli, E.; Graneli, W.; Rydberg, L.","Englishabstract":"Nutrient enrichment experiments in the laboratory with surface water from the Laholm Bay, indicate that phytoplankton is nitrogen-limited. Phosphate addition to phytoplankton samples rarely caused a biomass increase in agreement with negligible alkaline phosphatase activity. Usually the inorganic-N/P quotient in surface water was also below the Redfield ratio (16:1, by atoms), indicating potential nitrogen limitation. The supply ratio (runoff and deep water) of inorganic nutrients to the surface water of the bay was 23N:1P for March-October and thus indicates a mean shortage of phosphate. During summer when river runoff is small, the low N/P-ratio in the deep water (10:1) which is mixed into surface water suggests nitrogen limitation, in agreement with the enrichment experiments. Benthic denitrification and the low N/P-ratio of zooplankton excretion may make regenerated primary production nitrogen-limited. The recent suggestion by Smith (1984), that marine ecosystems, like lakes, are phosphorus-limited because any nitrogen shortage is alleviated through nitrogen fixation, does not apply to the bay itself, where water exchange is too rapid to allow for an adjustment of the N/P-supply quotient.","AbstractOtherLang":null,"BibLvlCode":"AMS","StandardTitle":"Nutrient limitation at the ecosystem and the phytoplankton community level in the Laholm Bay, south-east Kattegat","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":1986,"MonPub":null,"DateUpdate":"2001-09-13","DateCreate":"2001-08-29","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":16885,"PubliDate":1986,"Pagination":"181-194","XtraPublOfAnaID":null,"ISBN":"87-981066-4-3","Volume":"20","Issue":null,"BRefMon":16816,"BRefMonRR":"<b>Muus, K. (Ed.)</b> (1986). Proceedings of the 20th European Marine Biology Symposium: Nutrient Cycling. Processes in Marine Sediments, Hirtshals, Denmark, 9-13 September 1985. <i>European Marine Biology Symposia</i>, 20. <i>Ophelia: International Journal of Marine Biology</i>, 26. ISBN 87-981066-4-3. 477 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 20th European Marine Biology Symposium: Nutrient Cycling. Processes in Marine Sediments, Hirtshals, Denmark, 9-13 September 1985","StartPage":181,"Pages":14,"ToPubliDate":null,"BRefBibLvlCode":"MS","SerNotes":null,"AutString":"Muus, K. 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