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Food web structure and function in the Gulf of Bothnia, the Baltic Sea
(UMFpub)
Umeå University, Faculty of Science and Technology, Department of Molecular Biology (Faculty of Science and Technology). Umeå University, Faculty of Science and Technology, Umeå Marine Sciences Centre (UMF). (Johan Wikner)
1996 (English)In: Ambio, ISSN 0044-7447, E-ISSN 1654-7209, 13-21 p.Article in journal (Refereed) Published
Abstract [en]

To improve the spatio-temporal information of ecological variables, a multidisciplinary joint study between Finnish and Swedish marine scientists was conducted in the Gulf of Bothnia, 1991. The study corroborated previous reports, suggesting a markedly lower phytoplankton production and biomass of benthic fauna in the Bothnian Bay than in the Bothnian Sea, However, contrary to the general view, the offshore carbon fixation in the Bothnian Sea exceeded that at the corresponding coastal station. The results further indicated a greater importance of bacterioplankton production to the food web in the Bothnian Bay than previously assumed. The total carbon requirement of bacteria and zooplankton was estimated to exceed carbon fixation by a factor of 1.7 in the northern basin, possibly a result of the discharge of riverine organic carbon. Diversity and biomass of both fish and benthic fauna were lower in the Bothnian Bay, with benthic meiofauna being of relatively greater importance than macrofauna in this basin.

Place, publisher, year, edition, pages
Stockholm: Swedish Royal Academy of Sciences , 1996. 13-21 p.
National Category
Ecology
Identifiers
URN: urn:nbn:se:umu:diva-52552ISI: A1996VR48000003OAI: oai:DiVA.org:umu-52552DiVA: diva2:506354
Available from: 2012-02-28 Created: 2012-02-24 Last updated: 2017-10-24

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