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Volume 15, issue 16
Biogeosciences, 15, 4849–4869, 2018
https://doi.org/10.5194/bg-15-4849-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 4849–4869, 2018
https://doi.org/10.5194/bg-15-4849-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 16 Aug 2018

Research article | 16 Aug 2018

Deep-sea benthic communities and oxygen fluxes in the Arctic Fram Strait controlled by sea-ice cover and water depth

Ralf Hoffmann et al.

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Ambrose, W. G. and Renaud, P. E.: Benthic response to water column productivity patterns: Evidence for benthic-pelagic coupling in the Northeast Water Polynya, J. Geophys. Res., 100, 4411, https://doi.org/10.1029/94JC01982, 1995.
Anderson, M. J.: PERMANOVA: Permutational multivariate analysis of variance, Auckland, Department of Statistics, 2005.
Anderson, L. A. and Sarmiento, J. L.: Redfield ratios of remineralization determined by nutrient data analysis, Global Biogeochem. Cy., 8, 65–80, https://doi.org/10.1029/93GB03318, 1994.
Anderson, M. J., Gorley, R. N., and Clarke, K. R.: PERMANOVA+ for PRIMER: guide to software and statistical methods, PRIMER-E, Plymouth, 2007.
Arrigo, K. R., van Dijken, G., and Pabi, S.: Impact of a shrinking Arctic ice cover on marine primary production, Geophys. Res. Lett., 35, L19603, https://doi.org/10.1029/2008GL035028, 2008.
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Our study links surface sea-ice cover and benthic oxygen fluxes in the Fram Strait via primary production, food supply, benthic community, and their functions. We show that sea-ice cover and water depth are the most important factors influencing the ecosystem. However, in water depths > 1500 m, the effect of sea ice fades out. Further, we discuss primary production and benthic remineralization patterns and developed a potential scenario for the benthic remineralization in a future Arctic Ocean.
Our study links surface sea-ice cover and benthic oxygen fluxes in the Fram Strait via primary...
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