{"refrec":{"BRefID":2266,"RR":"<b>Van Meel, L.</b> (1966). Etudes hydrobiologiques sur les eaux saumâtres de Belgique: VIII. Les eaux de Doel et environs dans la région du Bas-Escaut belge (1). (Période 1950-1951). <i>Bull. K. Belg. Inst. Nat. Wet. 42(33)</i>: 1-37","BEntID":2266,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Med. K. Belg. Inst. Nat. Wet. 42(33)</i>: 1-37","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":1,"TerrestrialFlag":0,"Authorstring":"Van Meel, L.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Van Meel, L.","Englishabstract":null,"AbstractOtherLang":"Dans ce travail, on a étudié quelques facteurs écologiques et la composition floristique du phytopancton de divers étangs des environmens de Doel dans le Bas-Escaut belge, durant la période 1950-1951. On a mesuré les facteurs suivantes: température, turbidité, pH, oxygène dissous, alcalinité, chlorures, sulfates, calcium, magnesium, nitrates, phosphates et silicates. La plupart des eaux étudiées appartient au groupe oligohalin à meiomesohalin dans le système de A.Remane. L'inventaire des espèces phytoplanktoniques comprend 90 espèces parmi lesquelles 20 % de <i>Chlorophyceae</i>, 60 % de <i>Bacillariophyceae</i>, le restant étant constitué de <i>Chrysophyceae</i>, <i>Dinophyceae</i>, <i>Euglenophyceae</i> et <i>Cyanophyceae</i>. Parmi les espèces dominantes on peut noter, d'après les mois: <i>Chlorophyceae</i>: <i>Ankistrodesmus falcatus</i> jusque 100 %; <i>Bacillariophyceae</i>: <i>Synedra Ulna var. oxyrrhynchus</i>, jusque 100 %; <i>Conscinodiscus subtilis</i> jusque 100 %; <i>Cyclotella meneghiniana</i> jusque 100 % et <i>Nitzschia closterium</i> jusque 100 %. Parmi les <i>Chrysophyceae</i> <i>Synura uvella</i> atteint 100 %, parmi les <i>Dinophyceae</i> et les <i>Euglenophyceae</i> ce sont respectivement <i>Amphidinium pellucidum</i> et <i>Eutreptia viridis</i> qui atteignent 100 %, d'après les mois. En ce qui concerne la répartition géographique des groupes phytoplanktoniques, le calcul des pourcentages conduit à la conclusion que les quatre biotopes étudiés sont caractérisés par un phytoplankton à <i>Bacillariophyceae-Chlorophyceae</i>.","BibLvlCode":"AS","StandardTitle":"Etudes hydrobiologiques sur les eaux saumâtres de Belgique: VIII. Les eaux de Doel et environs dans la région du Bas-Escaut belge (1). 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