The relation between biodiversity and biogeochemical functioning in Arctic deep sea sediments
Although it has been proven that the Arctic is important in the present functioning of Earth and its life and is particularly sensitive to climate change, little is known about benthic ecosystem functioning in the Arctic Oceans. Therefore, to identify the variables structuring benthic functioning, d...
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ftawi:oai:epic.awi.de:39707 2023-05-15T14:24:07+02:00 The relation between biodiversity and biogeochemical functioning in Arctic deep sea sediments De Roeck, Naomi 2015 https://epic.awi.de/id/eprint/39707/ http://www.scriptiebank.be/sites/default/files/webform/scriptie/Msc_NaomiDeRoeck_0.pdf https://hdl.handle.net/10013/epic.46858 unknown De Roeck, N. (2015) The relation between biodiversity and biogeochemical functioning in Arctic deep sea sediments , Master thesis, Marine Biology Research Group University Gent / Max Planck Institute for Marine Microbiology. hdl:10013/epic.46858 EPIC366 p. Thesis notRev 2015 ftawi 2021-12-24T15:41:08Z Although it has been proven that the Arctic is important in the present functioning of Earth and its life and is particularly sensitive to climate change, little is known about benthic ecosystem functioning in the Arctic Oceans. Therefore, to identify the variables structuring benthic functioning, during the summer of 2014 a bathymetric gradient was sampled on both sides of Fram Strait with multiyear ice in the west and a summer ice - free area in the east. The sampled variables included information about the environmental setting, fauna present and biogeochemical fluxes. Ice cover was found to determine the food availability, which in turn affected faunal density, macrofaunal community composition and bioirrigation rate. In summer ice - free areas underneath the marginal ice zone, food availability was higher and therefore meiofaunal density and bio - irrigation were higher as well. Macrofaunal density was only partly explained by food input and total oxygen uptake as a part of benthic remineralisation was mainly structured by silt fraction in the sediment. Water depth determined faunal community composition, with lower macrofaunal biomass and functional diversity in the deeper areas. Thesis Arctic Arctic Climate change Fram Strait Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
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description |
Although it has been proven that the Arctic is important in the present functioning of Earth and its life and is particularly sensitive to climate change, little is known about benthic ecosystem functioning in the Arctic Oceans. Therefore, to identify the variables structuring benthic functioning, during the summer of 2014 a bathymetric gradient was sampled on both sides of Fram Strait with multiyear ice in the west and a summer ice - free area in the east. The sampled variables included information about the environmental setting, fauna present and biogeochemical fluxes. Ice cover was found to determine the food availability, which in turn affected faunal density, macrofaunal community composition and bioirrigation rate. In summer ice - free areas underneath the marginal ice zone, food availability was higher and therefore meiofaunal density and bio - irrigation were higher as well. Macrofaunal density was only partly explained by food input and total oxygen uptake as a part of benthic remineralisation was mainly structured by silt fraction in the sediment. Water depth determined faunal community composition, with lower macrofaunal biomass and functional diversity in the deeper areas. |
format |
Thesis |
author |
De Roeck, Naomi |
spellingShingle |
De Roeck, Naomi The relation between biodiversity and biogeochemical functioning in Arctic deep sea sediments |
author_facet |
De Roeck, Naomi |
author_sort |
De Roeck, Naomi |
title |
The relation between biodiversity and biogeochemical functioning in Arctic deep sea sediments |
title_short |
The relation between biodiversity and biogeochemical functioning in Arctic deep sea sediments |
title_full |
The relation between biodiversity and biogeochemical functioning in Arctic deep sea sediments |
title_fullStr |
The relation between biodiversity and biogeochemical functioning in Arctic deep sea sediments |
title_full_unstemmed |
The relation between biodiversity and biogeochemical functioning in Arctic deep sea sediments |
title_sort |
relation between biodiversity and biogeochemical functioning in arctic deep sea sediments |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/39707/ http://www.scriptiebank.be/sites/default/files/webform/scriptie/Msc_NaomiDeRoeck_0.pdf https://hdl.handle.net/10013/epic.46858 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Climate change Fram Strait |
genre_facet |
Arctic Arctic Climate change Fram Strait |
op_source |
EPIC366 p. |
op_relation |
De Roeck, N. (2015) The relation between biodiversity and biogeochemical functioning in Arctic deep sea sediments , Master thesis, Marine Biology Research Group University Gent / Max Planck Institute for Marine Microbiology. hdl:10013/epic.46858 |
_version_ |
1766296587482431488 |