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Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
Volume 14, issue 24 | Copyright
Biogeosciences, 14, 5705-5725, 2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 20 Dec 2017

Research article | 20 Dec 2017

Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments

James B. Bell et al.
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Cited articles
Adams, T. S. and Sterner, R. W.: The effect of dietary nitrogen content on trophic level 15N enrichment, Limnol. Oceanogr., 45, 601–607, 2000.
Aquilina, A., Connelly, D. P., Copley, J. T., Green, D. R., Hawkes, J. A., Hepburn, L., Huvenne, V. A., Marsh, L., Mills, R. A., and Tyler, P. A.: Geochemical and Visual Indicators of Hydrothermal Fluid Flow through a Sediment-Hosted Volcanic Ridge in the Central Bransfield Basin (Antarctica), Plos One, 8, e54686,, 2013.
Aquilina, A., Homoky, W. B., Hawkes, J. A., Lyons, T. W., and Mills, R. A.: Hydrothermal sediments are a source of water column Fe and Mn in the Bransfield Strait, Antarctica, Geochim. Cosmochim. Ac., 137, 64–80, 2014.
Bell, J. B., Aquilina, A., Woulds, C., Glover, A. G., Little, C. T. S., Reid, W. D. K., Hepburn, L. E., Newton, J., and Mills, R. A.: Geochemistry, faunal composition and trophic structure at an area of weak methane seepage on the southwest South Georgia margin, Roy. Soc. Open Sci., 3, 160284,, 2016a.
Bell, J. B., Woulds, C., Brown, L. E., Little, C. T. S., Sweeting, C. J., Reid, W. D. K., and Glover, A. G.: Macrofaunal ecology of sedimented hydrothermal vents in the Bransfield Strait, Antarctica, Front. Mar. Sci., 3, 32, 2016b.
Publications Copernicus
Short summary
Sedimented hydrothermal vents are among the least studied deep-sea ecosystems. We compared food webs between hydrothermally active and off-vent areas of the Bransfield Strait, Antarctica. Invertebrates showed diverse feeding strategies and occupied different positions in food webs between vent and non-vent sites. Feeding and microbial diversity was lowest at vent sites. Chemosynthetic organic matter was a minimal food source at both vents and non-vents.
Sedimented hydrothermal vents are among the least studied deep-sea ecosystems. We compared food...