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Will krill fare well under Southern Ocean acidification?

Citation

Kawaguchi, S and Kurihara, H and King, R and Hale, L and Berli, TM and Robinson, JP and Ishida, A and Wakita, M and Virtue, P and Nicol, S and Ishimatsu, A, Will krill fare well under Southern Ocean acidification?, Biology Letters, 7, (2) pp. 288-291. ISSN 1744-9561 (2011) [Refereed Article]

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Copyright Statement

Copyright © 2010 The Royal Society

Official URL: http://rsbl.royalsocietypublishing.org/content/7/2...

DOI: doi:10.1098/rsbl.2010.0777

Abstract

Antarctic krill embryos and larvae were experimentally exposed to 380 (control), 1000 and 2000 matm pCO2 in order to assess the possible impact of ocean acidification on early development of krill. No significant effects were detected on embryonic development or larval behaviour at 1000 matm pCO2; however, at 2000 matm pCO2 development was disrupted before gastrulation in 90 per cent of embryos, and no larvae hatched successfully. Our model projections demonstrated that Southern Ocean sea water pCO2 could rise up to 1400 matm in krill’s depth range under the IPCC IS92a scenario by the year 2100 (atmospheric pCO2 788 matm). These results point out the urgent need for understanding the pCO2-response relationship for krill developmental and later stages, in order to predict the possible fate of this key species in the Southern Ocean.

Item Details

Item Type:Refereed Article
Keywords:Antarctic krill; ocean acidification; early development; habitat pCO2; Southern Ocean
Research Division:Biological Sciences
Research Group:Other Biological Sciences
Research Field:Global Change Biology
Objective Division:Environment
Objective Group:Climate and Climate Change
Objective Field:Effects of Climate Change and Variability on Antarctic and Sub-Antarctic Environments (excl. Social Impacts)
Author:Kawaguchi, S (Dr So Kawaguchi)
Author:Hale, L (Miss Hale)
Author:Berli, TM (Mr Thomas Berli)
Author:Robinson, JP (Mr James Robinson)
Author:Virtue, P (Associate Professor Patti Virtue)
Author:Nicol, S (Dr Stephen Nicol)
ID Code:68395
Year Published:2011 (online first 2010)
Web of Science® Times Cited:44
Deposited By:IMAS Research and Education Centre
Deposited On:2011-03-11
Last Modified:2017-04-11
Downloads:0

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