{"refrec":{"BRefID":207802,"RR":"<b>Astoreca, R.; Rousseau, V.; Ruddick, K.; Knechciak, C.; Van Mol, B.; Parent, J.-Y.; Lancelot, C.</b> (2009). Development and application of an algorithm for detecting <i>Phaeocystis globosa</i> blooms in the Case 2 Southern North Sea waters. <i>J. Plankton Res. 31(3)</i>: 287-300. <a href=\"http://dx.doi.org/10.1093/plankt/fbn116\" target=\"_blank\">dx.doi.org/10.1093/plankt/fbn116</a>","BEntID":199803,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>J. Plankton Res. 31(3)</i>: 287-300. <a href=\"https://dx.doi.org/10.1093/plankt/fbn116\" target=\"_blank\">https://dx.doi.org/10.1093/plankt/fbn116</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Astoreca, R.; Rousseau, V.; Ruddick, K.; Knechciak, C.; Van Mol, B.; Parent, J.-Y.; Lancelot, C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Astoreca, R. <i>et al.</i>","Englishabstract":"While mapping algal blooms from space is now well-established, mapping undesirable algal blooms in eutrophicated coastal waters raises further challenge in detecting individual phytoplankton species. In this paper, an algorithm is developed and tested for detecting <i>Phaeocystis globosa</i> blooms in the Southern North Sea. For this purpose, we first measured the light absorption properties of two phytoplankton groups, <i>P. globosa</i> and diatoms, in laboratory-controlled experiments. The main spectral difference between both groups was observed at 467 nm due to the absorption of the pigment chlorophyll c3 only present in <i>P. globosa</i>, suggesting that the absorption at 467 nm can be used to detect this alga in the field. A Phaeocystis-detection algorithm is proposed to retrieve chlorophyll c3 using either total absorption or water-leaving reflectance field data. Application of this algorithm to absorption and reflectance data from Phaeocystis-dominated natural communities shows positive results. Comparison with pigment concentrations and cell counts suggests that the algorithm can flag the presence of P. globosa and provide quantitative information above a chlorophyll c3 threshold of 0.3 mg m<sup>-3</sup> equivalent to a <i>P. globosa</i> cell density of 3 × 10<sup>6</sup> cells L<sup>-1</sup>. Finally, the possibility of extrapolating this information to remote sensing reflectance data in these turbid waters is evaluated.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Development and application of an algorithm for detecting <i>Phaeocystis globosa</i> blooms in the Case 2 Southern North Sea waters","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":2009,"MonPub":null,"DateUpdate":"2018-05-17","DateCreate":"2011-09-20","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000263165800005","VABBcode":null,"OpenAcc":1,"DOI":"10.1093/plankt/fbn116"},"refs":null,"anarec":{"AnaID":207802,"PubliDate":2009,"Pagination":"287-300","XtraPublOfAnaID":null,"ISBN":null,"Volume":"31","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43255,"SerRR":"Journal of Plankton Research. 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