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Berlin Brandenburg

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  • 1
    In: Limnology and Oceanography, May 2000, Vol.45(3), pp.741-743
    Description: In experiments with axenic cultures of , we tested whether this cyanobacterium incorporates leucine, a compound that is often used for the measurement of heterotrophic bacterioplankton production. showed significant leucine incorporation, and the uptake of exponentially growing cells was higher than the uptake of cells in stationary growth phase. Therefore, the leucine method may not be suitable for measuring bacterial production in highly eutrophic waters with a dominance of cyanobacteria.
    Keywords: Oceanography;
    ISSN: 0024-3590
    E-ISSN: 1939-5590
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  • 2
    In: Limnology and Oceanography, November 2003, Vol.48(6), pp.2392-2396
    Description: Herbivorous fish feed on cyanobacteria. Digestability differs, however, between cyanobacteria species without mucous cover and mucilaginous genera such as . The latter can pass fish guts almost undamaged, and it has been hypothesized that they can take up nutrients during gut passage. Here we tested whether live , as food for juvenile roach labeled with P, indeed showed higher radioactivity after gut passage as compared to gut contents in control experiments with fish fed heated . showed high viability after passage through roach guts, and live colonies had a significantly higher radioactivity than dead ones. We conclude that is protected against digestion in roach guts and can directly use the phosphorus supplied in the fish guts during passage.
    Keywords: Oceanography;
    ISSN: 0024-3590
    E-ISSN: 1939-5590
    Library Location Call Number Volume/Issue/Year Availability
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