Climate change can cause complex responses in Baltic Sea macroalgae : A systematic review

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Takolander , A , Cabeza , M & Leskinen , E 2017 , ' Climate change can cause complex responses in Baltic Sea macroalgae : A systematic review ' , Journal of Sea Research , vol. 123 , pp. 16-29 . https://doi.org/10.1016/j.seares.2017.03.007

Title: Climate change can cause complex responses in Baltic Sea macroalgae : A systematic review
Author: Takolander, Antti; Cabeza, Mar; Leskinen, Elina
Contributor: University of Helsinki, Biosciences
University of Helsinki, Biosciences
University of Helsinki, Environmental Sciences
Date: 2017-03-22
Language: eng
Belongs to series: Journal of Sea Research
ISSN: 1385-1101
URI: http://hdl.handle.net/10138/300242
Abstract: Estuarine macroalgae are important primary producers in aquatic ecosystems, and often foundation species providing structurally complex habitat. Climate change alters many abiotic factors that affect their long-term persistence and distribution. Here, we review the existing scientific literature on the tolerance of key macroalgal species in the Baltic Sea, the world's largest brackish water body. Elevated temperature is expected to intensify coastal eutrophication, further promoting growth of opportunistic, filamentous species, especially green algae, which are often species associated with intensive filamentous algal blooms. Declining salinities will push the distributions of marine species towards south, which may alter the Baltic Sea community compositions towards a more limnic state. Together with increasing eutrophication trends this may cause losses in marine-originating foundation species such as Fucus, causing severe biodiversity impacts. Experimental results on ocean acidification effects on macroalgae are mixed, with only few studies conducted in the Baltic Sea. We conclude that climate change can alter the structure and functioning of macroalgal ecosystems especially in the northern Baltic coastal areas, and can potentially act synergistically with eutrophication. We briefly discuss potential adaptation measures.
Subject: 1181 Ecology, evolutionary biology
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