期刊
GLOBAL CHANGE BIOLOGY
卷 20, 期 2, 页码 515-522出版社
WILEY
DOI: 10.1111/gcb.12291
关键词
CO2; GABA-A receptors; global change; learning; neurotransmitter; ocean acidification; predator recognition; survival
资金
- Natural Sciences and Engineering Research Council of Canada
- University of Oslo
- Australian Research Council (ARC)
- ARC Centre of Excellence for Coral Reef Studies
Ocean acidification is one of the most pressing environmental concerns of our time, and not surprisingly, we have seen a recent explosion of research into the physiological impacts and ecological consequences of changes in ocean chemistry. We are gaining considerable insights from this work, but further advances require greater integration across disciplines. Here, we showed that projected near-future CO2 levels impaired the ability of damselfish to learn the identity of predators. These effects stem from impaired neurotransmitter function; impaired learning under elevated CO2 was reversed when fish were treated with gabazine, an antagonist of the GABA-A receptor - a major inhibitory neurotransmitter receptor in the brain of vertebrates. The effects of CO2 on learning and the link to neurotransmitter interference were manifested as major differences in survival for fish released into the wild. Lower survival under elevated CO2, as a result of impaired learning, could have a major influence on population recruitment.
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