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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 15, issue 14 | Copyright
Biogeosciences, 15, 4533-4559, 2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 25 Jul 2018

Research article | 25 Jul 2018

Geophysical and geochemical controls on the megafaunal community of a high Arctic cold seep

Arunima Sen et al.
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Manuscript under review for BG
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Cited articles
Aguzzi, J., Jamieson, A. J., Fujii, T., Sbragaglia, V., Costa, C., Menesatti, P., and Fujiwara, Y.: Shifting feeding behaviour of deep-sea buccinid gastropods at natural and simulated food falls, Mar. Ecol. Prog. Ser., 458, 247–253,, 2012.
Ambrose, W. G., Panieri, G., Schneider, A., Plaza-Faverola, A., Carroll, M. L., Åström, E. K. L., Locke, W. L., and Carroll, J.: Bivalve shell horizons in seafloor pockmarks of the last glacial-interglacial transition: a thousand years of methane emissions in the Arctic Ocean: Past Arctic Ocean Methane Emissions, Geochem. Geophys. Geosys., 16, 4108–4129,, 2015.
Amon, D. J., Gobin, J., Van Dover, C. L., Levin, L. A., Marsh, L., and Raineault, N. A.: Characterization of Methane-Seep Communities in a Deep-Sea Area Designated for Oil and Natural Gas Exploitation Off Trinidad and Tobago, Front. Mar. Sci., 4, 342,, 2017.
Andreassen, K., Hubbard, A., Winsborrow, M., Patton, H., Vadakkepuliyambatta, S., Plaza-Faverola, A., Gudlaugsson, E., Serov, P., Deryabin, A., Mattingsdal, R., Mienert, J., and Bünz, S.: Massive blow-out craters formed by hydrate-controlled methane expulsion from the Arctic seafloor, Science, 356, 948–953,, 2017.
Arnaud, F. and Bamber, R. N.: The Biology of Pycnogonida, in: Advances in Marine Biology, vol. 24, edited by: Blaxter, J. H. S. and Southward, A. J., pp. 1–96, Academic Press, 1988.
Publications Copernicus
Short summary
Diverse benthic communities populate a site of methane seepage on the Arctic shelf. Despite a likely reliance on sulfide as an energy source, Oligobrachia worm distributions did not correlate with sulfide concentrations. We suggest that sulfide and carbon generation linked to microbial activity and high methane fluxes determines their presence or absence. We discuss the site and our results within the context of Arctic ecology and economy as well as the biology of seafloor hydrocarbon seeps.
Diverse benthic communities populate a site of methane seepage on the Arctic shelf. Despite a...