Drivers of phytoplankton blooms in the northeastern Black Sea
Silkin, V.A.; Pautova, L.; Giordano, M.; Chasovnikov, V.; Vostokov, S.V.; Podymov, O.I.; Pakhomova, S.V.; Moskalenko, L.V. (2019). Drivers of phytoplankton blooms in the northeastern Black Sea. Mar. Pollut. Bull. 138: 274-284. https://dx.doi.org/10.1016/j.marpolbul.2018.11.042
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, meer
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| Trefwoorden |
Aquatic communities > Plankton > Phytoplankton
Blooms
Ecological succession
Nutrients
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| Author keywords |
Ecological stoichiometry; wind |
| Auteurs | | Top |
- Silkin, V.A.
- Pautova, L.
- Giordano, M.
- Chasovnikov, V., meer
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- Vostokov, S.V.
- Podymov, O.I.
- Pakhomova, S.V.
- Moskalenko, L.V.
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| Abstract |
In order to understand of the processes controlling phytoplankton successions in the NE Black Sea, long-term data series are needed. We compiled 15 years (2002–2017) of measurements from which the existence emerges of a tight link between phytoplankton species dominance and nutrients concentrations. The latter is strongly influenced by wind direction. The link between algal dominance and nutrients is mediated by the growth strategy adopted by algal species. In spring, when nutrients are abundant, small diatoms such as Pseudo-nitzschia pseudodelicatissima, with a “rapid growth strategy”, prevail. In late spring and early summer, when N is low and P and Si are high, coccolithophorids such as Emiliania huxhleyi dominate, thanks to an “affinity growth strategy”. Large diatoms, especially Pseudosolenia calcar-avis, dominate in summer and autumn, when their “storage growth strategy” allows the exploitation of discontinuous upwelling of nutrients. These seasonal changes of dominant species influence the structure of the food web. |
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