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Dynamics of primary production and sedimentation in a coastal ecosystem
Peinert, R.; Saure, A.; Stegmann, P.; Stienen, C.; Haardt, H.; Smetacek, V. (1982). Dynamics of primary production and sedimentation in a coastal ecosystem. Neth. J. Sea Res. 16: 276-289
In: Netherlands Journal of Sea Research. Netherlands Institute for Sea Research (NIOZ): Groningen; Den Burg. ISSN 0077-7579; e-ISSN 1873-1406, meer
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| Auteurs | | Top |
- Peinert, R.
- Saure, A.
- Stegmann, P.
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- Stienen, C.
- Haardt, H.
- Smetacek, V.
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| Abstract |
Production in relation to sedimentation in the mesohaline shallow water ecosystem of Kiel Bight was studied from February to June 1980. Plankton biomass and production were at their lowest during winter and sedimentation was a function of resuspension. Highest plankton biomass recorded during the period was at the height of the spring diatom bloom in mid-March. Zooplankton biomass remained low and the bulk of the phytoplankton (~10 g C. m-2) sedimented out of the water column by early April. Thereafter, zooplankton biomass increased with a distinct reciprocal relationship between protozooplankton and metazooplankton and an increasing diversification in feeding types. Loss rates by sedimentation were lowest in the presence of a large zooplankton standing stock indicating efficient recycling of essential elements within the pelagic system. Development of the pelagic system during the investigation period is divided into three stages in termms of solar radiation and transport energy. A winter period with low radiation and thoroughly mixed water column, a spring bloom with similar radiation and lessened mixing of the water column, and a period of maturation of the pelagic system with increasing radiation and stratification. |
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