期刊
COMMUNICATIONS BIOLOGY
卷 1, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s42003-018-0195-3
关键词
-
资金
- Australian Research Council [LP140100412]
- Australian Research Council [LP140100412] Funding Source: Australian Research Council
Antarctic krill (Euphausia superba) have a keystone role in the Southern Ocean, as the primary prey of Antarctic predators. Decreases in krill abundance could result in a major ecological regime shift, but there is limited information on how climate change may affect krill. Increasing anthropogenic carbon dioxide (CO2) emissions are causing ocean acidification, as absorption of atmospheric CO2 in seawater alters ocean chemistry. Ocean acidification increases mortality and negatively affects physiological functioning in some marine invertebrates, and is predicted to occur most rapidly at high latitudes. Here we show that, in the laboratory, adult krill are able to survive, grow, store fat, mature, and maintain respiration rates when exposed to near-future ocean acidification (1000-2000 mu atm pCO(2)) for one year. Despite differences in seawater pCO(2) incubation conditions, adult krill are able to actively maintain the acid-base balance of their body fluids in near-future pCO(2), which enhances their resilience to ocean acidification.
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