Change search
ReferencesLink to record
Permanent link

Direct link
Long-term progression and drivers of coastal zoobenthos in a changing system
Stockholm University, Faculty of Science, Department of Meteorology . Swedish Meteorological and Hydrographical Institute (SMHI), Sweden.
Stockholm University, Faculty of Science, Stockholm University Baltic Sea Centre, Baltic Nest Institute. Stockholm University, Faculty of Science, Stockholm Resilience Centre.
Show others and affiliations
Number of Authors: 6
2015 (English)In: Marine Ecology Progress Series, ISSN 0171-8630, E-ISSN 1616-1599, Vol. 528, 141-159 p.Article in journal (Refereed) Published
Abstract [en]

Coastal zones are facing climate-driven change coupled with escalating eutrophication. With increasing shifts in hydrographic conditions during the past few decades, a focal task is to understand how environmental drivers affect zoobenthic communities, which play a crucial role in ecosystem functioning. By using long-term data, spanning 40 yr (1973 to 2013) in the northern Baltic Sea, we showed a disparity in zoobenthic responses with pronounced changes in community composition and a trend towards decreased biomass in sheltered areas, while biomasses increased in exposed areas of the coastal zone. We used generalized additive modeling to show that bottom oxygen saturation, sea surface temperature and organic load of the sediments were the main environmental drivers behind contrasting patterns in biomass progression. Oxygen saturation alone explained over one third of the deviation in the biomass developments in sheltered areas, while exposed areas were mainly limited by organic content of the sediments. We analyzed high-resolution climate-scenario simulations, following the Intergovernmental Panel on Climate Change scenarios for the Baltic Sea region in combination with different nutrient load scenarios, for the end of the 21st century. The scenario outcomes showed negative trends in bottom oxygen concentrations throughout the coastal and archipelago zone along with overall increasing temperatures and primary production, and decreasing salinity. Our results suggest that these projected future conditions will strengthen the observed pattern in decreasing zoobenthic production in the immediate coastal zones. Moreover, the potential intensification of unfavorable conditions ex-panding seaward may lead to an expansion of biomass loss to more exposed sites.

Place, publisher, year, edition, pages
2015. Vol. 528, 141-159 p.
Keyword [en]
Infauna, Zoobenthos, Time series, Biomass, Climate change, Exposure, Aland Islands, Baltic Sea
National Category
Biological Sciences Earth and Related Environmental Sciences
URN: urn:nbn:se:su:diva-119060DOI: 10.3354/meps11279ISI: 000356075600011OAI: diva2:846257
Available from: 2015-08-14 Created: 2015-07-27 Last updated: 2015-08-14Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Blenckner, Thorsten
By organisation
Department of Meteorology Baltic Nest InstituteStockholm Resilience Centre
In the same journal
Marine Ecology Progress Series
Biological SciencesEarth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 154 hits
ReferencesLink to record
Permanent link

Direct link