Počet záznamů: 1

Lack of P-limitation of phytoplankton and heterotrophic prokaryotes in surface waters of three anticyclonic eddies in the stratified Mediterranean Sea

  1. 1.
    0360249 - BC-A 2012 RIV DE eng J - Článek v odborném periodiku
    Tanaka, T. - Thingstad, T. F. - Christaki, U. - Colombet, J. - Cornet-Barthaux, V. - Courties, C. - Grattepanche, J.-D. - Lagaria, A. - Nedoma, Jiří - Oriol, L. - Psarra, S. - Pujo-Pay, M. - Van Wambeke, F.
    Lack of P-limitation of phytoplankton and heterotrophic prokaryotes in surface waters of three anticyclonic eddies in the stratified Mediterranean Sea.
    Biogeosciences. Roč. 8, č. 2 (2011), s. 525-538 ISSN 1726-4170
    Výzkumný záměr: CEZ:AV0Z60170517
    Klíčová slova: P-limitation * Mediterranean Sea
    Kód oboru RIV: DA - Hydrologie a limnologie
    Impakt faktor: 3.859, rok: 2011

    We investigated the identity of the limiting nutrient of the pelagic microbial food web in the Mediterranean Sea using nutrient manipulated microcosms during summer 2008. Temporal changes of turnover time of phosphate and ATP, and alkaline phosphatase activity during the incubation suggested that the phytoplankton and heterotrophic prokaryotes communities were not P-limited at the sites. In contrast, primary production was consistently limited by N, and procaryote growth was not limited by N nor P in the Western Basin, but N-limited in the Ionian Basin, and N and P co-limited in the Levantine Basin. Our results demonstrated the gap between biogeochemical features (an apparent P-starved status) and biological responses (no apparent P-limitation).
    Trvalý link: http://hdl.handle.net/11104/0197845