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Effects of CO2 on benthic biota: an in situ benthic chamber experiment in Storfjorden (Norway)

Ishida, Hiroshi; Golmen, Lars G.; West, Julia; Krüger, Martin; Coombs, Patricia; Berge, John Arthur; Fukuhara, Tastuo; Magi, Michimasa; Kita, Jun. 2013 Effects of CO2 on benthic biota: an in situ benthic chamber experiment in Storfjorden (Norway). Marine Pollution Bulletin, 73 (2). 443-451. https://doi.org/10.1016/j.marpolbul.2013.02.009

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Abstract/Summary

Carbon capture and storage (CCS) methods, either sub-seabed or in ocean depths, introduces risk of CO2 leakage and subsequent interaction with the ecosystem. It is therefore important to obtain information on possible effects of CO2. In situ CO2 exposure experiments were carried out twice for 10 days during 2005 using a Benthic Chamber system at 400 m depth in Storfjorden, Norway. pCO2 in the water above the sediment in the chambers was controlled at approximately 500, 5000 and 20,000 μatm, respectively. This article describes the experiment and the results from measured the biological responses within the chamber sediments. The results show effects of elevated CO2 concentrations on biological processes such as increased nanobenthos density. Methane production and sulphate reduction was enhanced in the approximately 5000 μatm chamber.

Item Type: Publication - Article
Digital Object Identifier (DOI): https://doi.org/10.1016/j.marpolbul.2013.02.009
ISSN: 0025326X
Date made live: 27 Jun 2013 15:58 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/502412

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