Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments
Hydrothermal sediments are those in which hydrothermal fluid is discharged through sediments and are one of the least studied deep-sea ecosystems. We present a combination of microbial and biochemical data to assess trophodynamics between and within hydrothermal and background areas of the Bransfiel...
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Language: | English |
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European Geosciences Union
2017
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:34824 2023-05-15T13:56:54+02:00 Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments Bell, James Reid, William Pearce, David Glover, Adrian Sweeting, Christopher Newton, Jason Woulds, Clare 2017-12-20 text https://nrl.northumbria.ac.uk/id/eprint/34824/ https://doi.org/10.5194/bg-14-5705-2017 https://nrl.northumbria.ac.uk/id/eprint/34824/1/Hydrothermal%20activity.pdf en eng European Geosciences Union https://nrl.northumbria.ac.uk/id/eprint/34824/1/Hydrothermal%20activity.pdf Bell, James, Reid, William, Pearce, David, Glover, Adrian, Sweeting, Christopher, Newton, Jason and Woulds, Clare (2017) Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments. Biogeosciences, 14 (24). pp. 5705-5725. ISSN 1726-4189 cc_by_4_0 CC-BY C500 Microbiology F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2017 ftunivnorthumb https://doi.org/10.5194/bg-14-5705-2017 2022-09-25T06:07:34Z Hydrothermal sediments are those in which hydrothermal fluid is discharged through sediments and are one of the least studied deep-sea ecosystems. We present a combination of microbial and biochemical data to assess trophodynamics between and within hydrothermal and background areas of the Bransfield Strait (1050–1647 m of depth). Microbial composition, biomass, and fatty acid signatures varied widely between and within hydrothermally active and background sites, providing evidence of diverse metabolic activity. Several species had different feeding strategies and trophic positions between hydrothermally active and inactive areas, and the stable isotope values of consumers were not consistent with feeding morphology. Niche area and the diversity of microbial fatty acids was lowest at the most hydrothermally active site, reflecting trends in species diversity. Faunal uptake of chemosynthetically produced organics was relatively limited but was detected at both hydrothermal and non-hydrothermal sites, potentially suggesting that hydrothermal activity can affect trophodynamics over a much wider area than previously thought. Article in Journal/Newspaper Antarc* Antarctic Bransfield Strait Northumbria University, Newcastle: Northumbria Research Link (NRL) Antarctic Bransfield Strait Biogeosciences 14 24 5705 5725 |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
English |
topic |
C500 Microbiology F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
C500 Microbiology F800 Physical and Terrestrial Geographical and Environmental Sciences Bell, James Reid, William Pearce, David Glover, Adrian Sweeting, Christopher Newton, Jason Woulds, Clare Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments |
topic_facet |
C500 Microbiology F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
Hydrothermal sediments are those in which hydrothermal fluid is discharged through sediments and are one of the least studied deep-sea ecosystems. We present a combination of microbial and biochemical data to assess trophodynamics between and within hydrothermal and background areas of the Bransfield Strait (1050–1647 m of depth). Microbial composition, biomass, and fatty acid signatures varied widely between and within hydrothermally active and background sites, providing evidence of diverse metabolic activity. Several species had different feeding strategies and trophic positions between hydrothermally active and inactive areas, and the stable isotope values of consumers were not consistent with feeding morphology. Niche area and the diversity of microbial fatty acids was lowest at the most hydrothermally active site, reflecting trends in species diversity. Faunal uptake of chemosynthetically produced organics was relatively limited but was detected at both hydrothermal and non-hydrothermal sites, potentially suggesting that hydrothermal activity can affect trophodynamics over a much wider area than previously thought. |
format |
Article in Journal/Newspaper |
author |
Bell, James Reid, William Pearce, David Glover, Adrian Sweeting, Christopher Newton, Jason Woulds, Clare |
author_facet |
Bell, James Reid, William Pearce, David Glover, Adrian Sweeting, Christopher Newton, Jason Woulds, Clare |
author_sort |
Bell, James |
title |
Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments |
title_short |
Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments |
title_full |
Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments |
title_fullStr |
Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments |
title_full_unstemmed |
Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments |
title_sort |
hydrothermal activity lowers trophic diversity in antarctic hydrothermal sediments |
publisher |
European Geosciences Union |
publishDate |
2017 |
url |
https://nrl.northumbria.ac.uk/id/eprint/34824/ https://doi.org/10.5194/bg-14-5705-2017 https://nrl.northumbria.ac.uk/id/eprint/34824/1/Hydrothermal%20activity.pdf |
geographic |
Antarctic Bransfield Strait |
geographic_facet |
Antarctic Bransfield Strait |
genre |
Antarc* Antarctic Bransfield Strait |
genre_facet |
Antarc* Antarctic Bransfield Strait |
op_relation |
https://nrl.northumbria.ac.uk/id/eprint/34824/1/Hydrothermal%20activity.pdf Bell, James, Reid, William, Pearce, David, Glover, Adrian, Sweeting, Christopher, Newton, Jason and Woulds, Clare (2017) Hydrothermal activity lowers trophic diversity in Antarctic hydrothermal sediments. Biogeosciences, 14 (24). pp. 5705-5725. ISSN 1726-4189 |
op_rights |
cc_by_4_0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/bg-14-5705-2017 |
container_title |
Biogeosciences |
container_volume |
14 |
container_issue |
24 |
container_start_page |
5705 |
op_container_end_page |
5725 |
_version_ |
1766264496549003264 |