P-limited bacteria but N and P co-limited phytoplankton in the Eastern Mediterranean—a microcosm experiment

An on-board microcosm experiment was set up to test the hypothesis that the observed lack of phytoplankton biomass increase response to a mesoscale in situ P-enrichment experiment in the P-limited Eastern Mediterranean (Krom et al., 2005a) was a consequence of co-limitation by P and N availability i...

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Bibliographic Details
Published in:Deep-sea research. Part II, Topical studies in oceanography Topical studies in oceanography, 2005-01, Vol.52 (22), p.3011-3023
Main Authors: Zohary, Tamar, Herut, Barak, Krom, Michael D., Fauzi C. Mantoura, R., Pitta, Paraskevi, Psarra, Stella, Rassoulzadegan, Ferreidoun, Stambler, Noga, Tanaka, Tsuneo, Frede Thingstad, T., Malcolm S. Woodward, E.
Format: Article
Language:English
Subjects:
Ciliates
Earth Sciences
Eastern Mediterranean
Heterotrophic bacteria
Marine
Oceanography
P-limitation
Prochlorococcus
Sciences of the Universe
Synechococcus
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Summary:An on-board microcosm experiment was set up to test the hypothesis that the observed lack of phytoplankton biomass increase response to a mesoscale in situ P-enrichment experiment in the P-limited Eastern Mediterranean (Krom et al., 2005a) was a consequence of co-limitation by P and N availability in this ultraoligotrophic environment. Six microcosms were filled with subsurface seawater (ambient DIN: 90–100 nM) taken from inside a P-enriched patch (IN), which in the absence of biological activity would have had ca. 22 nM of PO 4 −3. Another six microcosms were filled with unfertilized (
ISSN:0967-0645
1879-0100
DOI:10.1016/j.dsr2.2005.08.011