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Vertical transport of lipid in seawater
Umeå University, Faculty of Science and Technology, Umeå Marine Sciences Centre (UMF). Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC). (Eva Selstam)
1993 (English)In: Marine Ecology Progress Series, ISSN 0171-8630, E-ISSN 1616-1599, Vol. 98, no 1-2, 149-155 p.Article in journal (Refereed) Published
Abstract [en]

Lipids in seawater act as solvents and transporters of lipophilic organic pollutants. To investigate a possible transport route of lipophilic pollutants, the vertical flux of lipid was quantified during an annual cycle in the northern Baltic Sea. The lipid content in both sedimenting material and different size fractions of seawater was analyzed. During the year, 8 g lipid m-2 sedimented out from the photic zone to the benthic system. The sedimentation of lipid accounted for 300 to 400 % of the average standing stock of pelagic lipid and was concentrated in the spring bloom period (April-June) when 70 % of the total lipid sedimentation occurred. About 30 % of the produced pelagic lipid settled out from the system. In seawater the lipid maximum occurred at the end of the spring bloom, shortly after nutrient depletion, indicating a stress response in the algae. Since lipid sedimentation is concentrated in the spring bloom, removal of lipophilic organic pollutants may be important during this period.

Place, publisher, year, edition, pages
1993. Vol. 98, no 1-2, 149-155 p.
National Category
Oceanography, Hydrology, Water Resources
Identifiers
URN: urn:nbn:se:umu:diva-46649DOI: 10.3354/meps098149ISI: A1993LT15100014OAI: oai:DiVA.org:umu-46649DiVA: diva2:439727
Available from: 2011-09-08 Created: 2011-09-08 Last updated: 2012-06-04Bibliographically approved

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Andersson, AgnetaSelstam, EvaHagström, Åke
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Umeå Marine Sciences Centre (UMF)Department of Ecology and Environmental SciencesDepartment of Plant PhysiologyUmeå Plant Science Centre (UPSC)
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Marine Ecology Progress Series
Oceanography, Hydrology, Water Resources

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