Articles | Volume 11, issue 1
Research article
21 Jan 2015
Research article |  | 21 Jan 2015

Consequences of artificial deepwater ventilation in the Bornholm Basin for oxygen conditions, cod reproduction and benthic biomass – a model study

A. Stigebrandt, R. Rosenberg, L. Råman Vinnå, and M. Ödalen

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Cited articles

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Bonsdorff, E. and Pearson, Y. H.: Variation in the sublittoral macrozoobenthos of the Baltic Sea along environmental gradients: A functional-group approach, Aust. J. Ecol., 24, 312–326, 1999.
Bonsdorff, E., Blomqvist, E. M., Mattila, J., and Norkko, A.: Coastal eutrophication: causes, consequences and perspectives in the archipelago area of the northern Baltic Sea, Estuar. Coast. Shelf Sci., 44, 63–72, 1997.
Breitburg, D. L.: Effects of hypoxia, and the balance between hypoxia and enrichment, on coastal fishes and fisheries, Estuaries, 25, 767–781, 2002.
Cederwall, H., Jermakovs, V., and Lagzdins, G.: Long-term changes in the soft-bottom macrofauna of the Gulf of Riga, ICES J. Mar. Sci., 56, 41–48, 1999.
Short summary
The hydrographical and ecological changes in the deep part of the Bornholm Basin in response to pumping well-oxygenated so-called winter water down to the greatest depth are investigated. By pumping 1000 m3s-1, the rates of water exchange and oxygen supply increase by 2.5 and 3 times, respectively. Anoxic bottoms should no longer occur and hypoxic events will become rare. This should mean much improved conditions for successful cod reproduction, extensive colonization of fauna on earlier periodi