{"refrec":{"BRefID":3428,"RR":"<b>Louis, A.; Clarysse, R.</b> (1971). Contribution à la connaissance du phytoplankton de l'Atlantique nord-est et de la Mer du Nord. <i>Biol. Jb. Dodonaea 39</i>: 261-337","BEntID":3428,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":". <i>Biol. Jb. Dodonaea 39</i>: 261-337","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Louis, A.; Clarysse, R.","OrigTitleTranslFlag":1,"Authorstringtrunc":"Louis, A.; Clarysse, R.","Englishabstract":"This study shows that the principal ecological factors influencing the studied area are light, determined by very unequal day lengths, the wind, provoking a fairly homogenically mixed layer of microscopic organisms, and water depth, which in correlation with the proximity of the coast line determined the nutrient salinity concentration. The floral study allowed the determination of algal concentration in the different zones during different periods of the year, and also the quantitative and qualitative photosynthetic activity fluctuations of several florules. The study also resulted in a zonal and chronological delimitation of a large number of species of the studied area. The degressive lists, based on the mean algal frequency, showed the photosynthetically important species for each zone. Finally, the urgent necessity of large enough outtakes is shown through the phenomenon of explosive blooms of certain species.","AbstractOtherLang":"Il ressort de cette étude que les principaux facteurs écologiques agissant dans le domaine étudié sont la lumière, déterminant des longueurs très inégales des jours, le vent, provoquant une couche de mélange a répartition plus ou moins homogène des organismes microscopiques et la profondeur des fonds, qui en corrélation avec la proximité du littoral déterminait la concentration des sels nutritifs. L 'étude floristique permit la détermination de la concentration algale dans les différentes zones au cours des différentes périodes de l'année, ainsi que les fluctuations quantitatives et qualitatives des diverses florules en activité photosynthétique. Elle permit également la délimitation zonale et chronologique d'un grand nombre d' espèces du domaine étudié. Les listes dégressives, basées sur les fréquences moyennes algales, révélèrent pour chaque zone les espèces photosynthetiquement importantes. Finalement la nécessite urgente de prélevements suffisamment nombreux fut mise en évidence par les phénomenes de floraison explosive de quelques espèces.","BibLvlCode":"AS","StandardTitle":"Contribution à la connaissance du phytoplankton de l'Atlantique nord-est et de la Mer du Nord","OrigTitleLangCode":"fr","OrigTitleLangCodeExtended":"fre","OrigTitleLangID":22,"DateLastModified":{"date":"2025-07-02 08:58:19.190595","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1971,"MonPub":null,"DateUpdate":"2020-01-03","DateCreate":"2000-09-11","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":3428,"PubliDate":1971,"Pagination":"261-337","XtraPublOfAnaID":null,"ISBN":null,"Volume":"39","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":44265,"SerRR":"Biologisch Jaarboek (Dodonaea). 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