{"refrec":{"BRefID":144506,"RR":"<b>Hansen, P.J.; Nielsen, T.G.</b> (1997). Mixotrophic feeding of <i>Fragilidium subglobosum</i> (Dinophyceae) on three species of <i>Ceratium</i>: effects of prey concentration, prey species and light intensity. <i>Mar. Ecol. Prog. Ser. 147</i>: 187-196. <a href=\"https://dx.doi.org/10.3354/meps147187\" target=\"_blank\">https://dx.doi.org/10.3354/meps147187</a>","BEntID":137634,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mar. Ecol. Prog. Ser. 147</i>: 187-196. <a href=\"https://dx.doi.org/10.3354/meps147187\" target=\"_blank\">https://dx.doi.org/10.3354/meps147187</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hansen, P.J.; Nielsen, T.G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hansen, P.J.; Nielsen, T.G.","Englishabstract":"Growth and grazing responses of the mixotrophic dinoflagellate <i>Fragilidium subglobosum</i> were studied as a function of prey concentration, prey species, and light intensity in laboratory cultures. In monospecific (exclusively phototrophic) cultures the growth rate of <i>F. subglobosum</i> was 0.16/d (doubling time 4.3 d) at a light intensity of 45 mu mol photons/m<sup>-2</sup>/s<sup>-1</sup>. In cultures supplied with the phototrophic dinoflagellate <i>Ceratium tripos</i> at a similar light intensity, the growth rate of F. subglobosum reached a maximum level of 0.5/d (doubling time 1.4 d) at a prey concentration of ca 10 C. tripos cells/ml. The functional response of <i>F. subglobosum</i> followed a Holling type I functional response. At prey concentrations which resulted in maximum growth rate, growth yield equalled ca 40%. However, at prey concentrations which led to lower growth rates, growth yield exceeded 100%, indicating that food uptake by <i>F. subglobosum</i> stimulated photosynthesis at low prey concentrations. When <i>C. tripos</i> cells were added in excess, growth and ingestion rate of <i>F. subglobosum</i> increased with light intensity within the studied range (9 to 45 mu mol photons/m<sup>-2</sup>/s<sup>-1</sup>). Growth rates of <i>F. subglobosum</i> were higher with <i>C. tripos</i> as food than with <i>C. furca</i> and <i>C. fusus</i>.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Mixotrophic feeding of <i>Fragilidium subglobosum</i> (Dinophyceae) on three species of <i>Ceratium</i>: effects of prey concentration, prey species and light intensity","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-12 01:31:21.605418","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1997,"MonPub":null,"DateUpdate":"2010-04-07","DateCreate":"2010-04-07","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1997WP96900018","VABBcode":null,"OpenAcc":0,"DOI":"10.3354/meps147187"},"refs":null,"anarec":{"AnaID":144506,"PubliDate":1997,"Pagination":"187-196","XtraPublOfAnaID":null,"ISBN":null,"Volume":"147","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43354,"SerRR":"Marine Ecology Progress Series. Inter-Research: Oldendorf/Luhe.  ISSN 0171-8630; e-ISSN 1616-1599","StandardTitleSer":"Marine Ecology Progress Series","ISSN":"0171-8630","AbbrevSer":"Mar. Ecol. Prog. 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