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Sedimentation of phytoplankton during a spring bloom in the Øresund
Christensen, H.; Kanneworff, E. (1986). Sedimentation of phytoplankton during a spring bloom in the Øresund, in: Muus, K. (Ed.) Proceedings of the 20th European Marine Biology Symposium: Nutrient Cycling. Processes in Marine Sediments, Hirtshals, Denmark, 9-13 September 1985. Ophelia: International Journal of Marine Biology, 26: pp. 109-122
In: Muus, K. (Ed.) (1986). Proceedings of the 20th European Marine Biology Symposium: Nutrient Cycling. Processes in Marine Sediments, Hirtshals, Denmark, 9-13 September 1985. Ophelia: International Journal of Marine Biology, 26. Ophelia Publications: Helsingør. ISBN 87-981066-4-3. 477 pp., more
In: Ophelia: International Journal of Marine Biology. Ophelia Publications: Helsingør. ISSN 0078-5326, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Proceedings [16880]
Document type: Conference paper

Keyword
    Marine

Authors  Top 
  • Christensen, H.
  • Kanneworff, E.

Abstract
    Rates of sedimentation of phytoplankton from a spring bloom in the Øresund, Denmark, were estimated from changes in the sediment content of phytoplankton pigments. From late March to early May about 20-26 g/m² of phytoplankton carbon was deposited on the sediment surface. This deposition could explain 45-60% of the annual benthic metabolic activity. In the sedimentation period a fluid zone developed at the sediment-water interface, with high concentrations of organic matter and phytoplankton pigments. The existence of this zone is discussed in relation to feeding and growth of macrobenthos at this time. Observed microdistributions of sediment water, organic material and phytoplankton pigments were considered important for the distribution of benthos.

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