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Model estimates of the impact of bioirrigation activity of Marenzelleria spp. on the Gulf of Finland ecosystem in a changing climate
Stockholm University, Faculty of Science, Stockholm University Baltic Sea Centre, Baltic Nest Institute. St. Petersburg State University, Russia.
Number of Authors: 4
2017 (English)In: Journal of Marine Systems, ISSN 0924-7963, E-ISSN 1879-1573, Vol. 171, 81-88 p.Article in journal (Refereed) Published
Abstract [en]

Drastic changes have occurred in the Eastern Gulf of Finland ecosystem after recent invasion and establishment of polychaete Marenzelleria spp. Possible mechanisms of these changes are explored with the help of three-dimensional ecosystem model SPBEM. Relative significance of bioirrigation activity is studied by comparison of two climate change scenario simulations, which include or disregard Marenzelleria effects. The novel results obtained with this approach demonstrate that on a system level biogeochemical consequences of both implemented climate changes scenario and polychaete activity are equivalent to a weakening of vicious circle of the Baltic Sea eutrophication. The eutrophication-mitigating effects of the Marenzelleria invasion into the Eastern Gulf of Finland, revealed by the long-term field measurements, are explained by simulation-based considerations.

Place, publisher, year, edition, pages
2017. Vol. 171, 81-88 p.
Keyword [en]
Biogeochemical cycles, Gulf of Finland, Marenzelleria, Modelling
National Category
Earth and Related Environmental Sciences Biological Sciences
Identifiers
URN: urn:nbn:se:su:diva-145359DOI: 10.1016/j.jmarsys.2016.08.005ISI: 000403991900009OAI: oai:DiVA.org:su-145359DiVA: diva2:1128584
Available from: 2017-07-26 Created: 2017-07-26 Last updated: 2017-07-26Bibliographically approved

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Savchuk, Oleg P.
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