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Concentration and microbiological utilization of small organic molecules in the Scheldt estuary, the Belgian coastal zone of the North Sea and the English Channel
Billen, G.; Joiris, C.R.; Wijnant, J.; Gillain, G. (1980). Concentration and microbiological utilization of small organic molecules in the Scheldt estuary, the Belgian coastal zone of the North Sea and the English Channel. Estuar. Coast. Mar. Sci. 11(3): 279-294. hdl.handle.net/10.1016/S0302-3524(80)80084-3
In: Estuarine and Coastal Marine Science. Academic Press: London. ISSN 0302-3254, more
Peer reviewed article  

Also published as
  • Billen, G.; Joiris, C.R.; Wijnant, J.; Gillain, G. (1978). Concentration and microbiological utilization of small organic molecules in the Scheldt estuary, the Belgian coastal zone of the North Sea and the English Channel, in: Actions de recherches concertées en océanographie: rapport d'activité 1978, II. pp. 34 + figures, more

Available in Authors 
    VLIZ: Open Repository 140764 [ OMA ]

Keywords

Project Top | Authors 
  • ARC - Belgian 'Concerted action research project' - a further multidisciplinary study of Southern Bight of North Sea (1977-81), more

Authors  Top 
  • Billen, G., more
  • Joiris, C.R., more
  • Wijnant, J.
  • Gillain, G.

Abstract
    Concentrations and utilization rates of alanine, aspartate, lysine, glucose, glycollic, acetic and lactic acids have been determined on 6 occasions at least, during a full seasonal cycle in the water column of 3 stations (Scheldt estuary, coastal North Sea and English Channel) with greatly differing biological characteristics. No significant differences in substrate concentration could be detected between the 3 stations, although the rate of utilization of all substrates differed greatly, decreasing in the order estuarine > coastal > open sea environment. This apparent paradox is explained by aid of a simple model showing that the steady state concentration of a particular substrate is independent of its rate of production (and thus of consumption) and depends only on purely physiological characteristics of the bacteria. Using published data for the pertinent physiological parameters of marine bacteria, the model accounts for at least the order of magnitude of substrate concentrations observed, and the absence of important seasonal variations

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