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Bacterial abundance and growth in oligotrophic Mediterranean seawater and Rhone river plume
Soto, Y.; Bianchi, M. (1988). Bacterial abundance and growth in oligotrophic Mediterranean seawater and Rhone river plume. Mar. Nat. 1(1): 15-20
In: Marine Nature. Marine Science Institute, Yeungnam University: Kyongsan. ISSN 1225-990X, more

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Keyword
    Marine

Authors  Top 
  • Soto, Y.
  • Bianchi, M.

Abstract
    In order to compare microbial characteristics of the oligotrophic Mediterranean sea water and the eutrophic Rhone river freshwater, samples were taken at five depths of a marine station and of two stations in the plume area with a low salinity upper layer of 2-5 meters. No clear difference was seen either in bacterial densities (5-10 x 105 bacteria . ml- 1 ) nor in bacterial growth rates (0.05-0.08 h - 1 ) between oligotrophic and eutrophicated water. But, the bacterial production in the Rhone water was higher (5 - 8 times) than in the oligotrophic water. Counts of bacteria and heterotrophic micropredators showed oscillations between predator and prey populations along depth profiles.

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