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Impact of near-future ocean acidification on echinoderms
S Dupont1, O Ortega-Martínez, M Thorndyke
1Department of Marine Ecology, The Sven Lovén Centre for Marine Sciences, University of Gothenburg, Kristineberg, Sweden. sam.dupont@marecol.gu.se
Ecotoxicology (London, England)
|February 5, 2010
Summary
Marine echinoderms show surprising robustness to ocean acidification (OA). However, long-term exposure and ecological factors reveal potential negative impacts, especially at the ecosystem level.
Area of Science:
- Marine Biology
- Ecology
- Climate Change Science
Background:
- Increasing atmospheric CO(2) causes ocean warming and acidification (OA).
- Echinoderms, vital marine ecosystem engineers, are potentially vulnerable to climate change impacts.
- Calcification processes in marine organisms are a key focus for OA impact studies.
Purpose of the Study:
- To review and analyze the impact of near-future ocean acidification on echinoderms.
- To identify factors influencing echinoderm sensitivity to OA.
- To predict the ecosystem-level consequences of OA on echinoderms.
Main Methods:
- Global literature analysis of existing studies on echinoderms and OA.
- Examination of short-term versus long-term exposure effects.
- Assessment of physiological, life-cycle, and ecological feedback mechanisms.
Main Results:
- Echinoderms exhibit notable robustness to OA, with varying sensitivity across species and populations.
- Longer exposure times reveal negative impacts masked in shorter-term experiments.
- Stage-specific development and ecological feedbacks can amplify sub-lethal effects.
Conclusions:
- Species adapted to variable pH may be pre-adapted to future OA.
- Further research integrating ecotoxicology and ecology is crucial.
- Near-future OA is predicted to negatively impact echinoderms, with significant ecosystem-level consequences.
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