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Top-down regulation, climate and multi-decadal changes in coastal zoobenthos communities in two Baltic Sea areas

Olsson, Jens and Bergström, Lena and Gårdmark, Anna (2013). Top-down regulation, climate and multi-decadal changes in coastal zoobenthos communities in two Baltic Sea areas. PloS one. 8 :5 , 1-13
[Research article]

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Official URL: http://dx.doi.org/10.1371/journal.pone.0064767


The structure of many marine ecosystems has changed substantially during recent decades, as a result of overexploitation, climate change and eutrophication. Despite of the apparent ecological and economical importance of coastal areas and communities, this aspect has received relatively little attention in coastal systems. Here we assess the temporal development of zoobenthos communities in two areas on the Swedish Baltic Sea coast during 30 years, and relate their development to changes in climate, eutrophication and top-down regulation from fish. Both communities show substantial structural changes, with a decrease in marine polychaetes and species sensitive to increased water temperatures. Concurrently, opportunistic species tolerant to environmental perturbation have increased in abundance. Species composition show a similar temporal development in both communities and significant changes in species composition occurred in both data sets in the late 1980s and early 1990s. The change in species composition was associated with large scale changes in climate (salinity and water temperature) and to the structure of the local fish community, whereas we found no effects of nutrient loading or ambient nutrient concentrations. Our results suggest that these coastal zoobenthos communities have gone through substantial structural changes over the last 30 years, resulting in communities of different species composition with potentially different ecological functions. We hence suggest that the temporal development of coastal zoobenthos communities should be assessed in light of prevailing climatic conditions considering the potential for top-down effects exerted by local fish communities.

Authors/Creators:Olsson, Jens and Bergström, Lena and Gårdmark, Anna
Title:Top-down regulation, climate and multi-decadal changes in coastal zoobenthos communities in two Baltic Sea areas
Series Name/Journal:PloS one
Year of publishing :2013
Page range:1-13
Number of Pages:13
Publisher:Public Library of Science
Associated Programs and Other Stakeholders:SLU - Environmental assessment > Programme Coastal and sea areas
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 3.0
Full Text Status:Public
Agris subject categories.:M Aquatic sciences and fisheries > M01 Fisheries and aquaculture - General aspects
M Aquatic sciences and fisheries > M40 Aquatic ecology
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Fish and Aquacultural Science
Agrovoc terms:ecosystems, water, coastal climate, coastal waters, climate change, Baltic Sea
Keywords:marine ecosystems, climate change, coastal systems, Baltic Sea
Permanent URL:
Additional ID:
Type of IDID
Web of Science (WoS)000319385300012
ID Code:11195
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:02 Jun 2014 15:18
Metadata Last Modified:12 Mar 2015 09:51

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