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Projected marine climate change: effects on copepod oxidative status and reproduction
Stockholm University, Faculty of Science, Department of Ecology, Environment and Plant Sciences.
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
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2013 (English)In: Ecology and Evolution, ISSN 2045-7758, Vol. 3, no 13, 4548-4557 p.Article in journal (Refereed) Published
Abstract [en]

Zooplankton are an important link between primary producers and fish. Therefore, it is crucial to address their responses when predicting effects of climate change on pelagic ecosystems. For realistic community-level predictions, several biotic and abiotic climate-related variables should be examined in combination. We studied the combined effects of ocean acidification and global warming predicted for year 2100 with toxic cyanobacteria on the calanoid copepod, Acartia bifilosa. Acidification together with higher temperature reduced copepod antioxidant capacity. Higher temperature also decreased egg viability, nauplii development, and oxidative status. Exposure to cyanobacteria and its toxin had a negative effect on egg production but, a positive effect on oxidative status and egg viability, giving no net effects on viable egg production. Additionally, nauplii development was enhanced by the presence of cyanobacteria, which partially alleviated the otherwise negative effects of increased temperature and decreased pH on the copepod recruitment. The interactive effects of temperature, acidification, and cyanobacteria on copepods highlight the importance of testing combined effects of climate-related factors when predicting biological responses.

Place, publisher, year, edition, pages
2013. Vol. 3, no 13, 4548-4557 p.
Keyword [en]
antioxidant capacity, copepod egg production, hatching success, nauplii development, ocean acidification, oxidative stress, toxic algae, warming
National Category
Environmental Sciences Ecology
URN: urn:nbn:se:su:diva-97658DOI: 10.1002/ece3.839ISI: 000326824300023OAI: diva2:680405


Available from: 2013-12-18 Created: 2013-12-16 Last updated: 2013-12-18Bibliographically approved

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Hogfors, HedvigGorokhova, Elena
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Department of Ecology, Environment and Plant SciencesDepartment of Applied Environmental Science (ITM)
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