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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 14, issue 24 | Copyright
Biogeosciences, 14, 5705-5725, 2017
https://doi.org/10.5194/bg-14-5705-2017
© 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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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...
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