Results from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica, supplement to: Pasotti, Francesca; De Troch, Marleen; Raes, Maarten; Vanreusel, Ann (2012): Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica. Polar Biology, 35(11), 1629-1640
Antarctic meiofauna is still strongly understud- ied, and so is its trophic position in the food web. Primary producers, such as phytoplankton, and bacteria may repre- sent important food sources for shallow water metazoans, and the role of meiobenthos in the benthic-pelagic coupling represents an i...
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ftdatacite:10.1594/pangaea.811380 2023-05-15T13:56:05+02:00 Results from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica, supplement to: Pasotti, Francesca; De Troch, Marleen; Raes, Maarten; Vanreusel, Ann (2012): Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica. Polar Biology, 35(11), 1629-1640 Pasotti, Francesca De Troch, Marleen Raes, Maarten Vanreusel, Ann 2012 application/zip https://dx.doi.org/10.1594/pangaea.811380 https://doi.pangaea.de/10.1594/PANGAEA.811380 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1007/s00300-012-1203-6 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Impact of climate induced glacier melt on marine coastal systems, Antarctica IMCOAST/IMCONet Collection article Supplementary Collection of Datasets 2012 ftdatacite https://doi.org/10.1594/pangaea.811380 https://doi.org/10.1007/s00300-012-1203-6 2021-11-05T12:55:41Z Antarctic meiofauna is still strongly understud- ied, and so is its trophic position in the food web. Primary producers, such as phytoplankton, and bacteria may repre- sent important food sources for shallow water metazoans, and the role of meiobenthos in the benthic-pelagic coupling represents an important brick for food web understanding. In a laboratory, feeding experiment 13C-labeled freeze- dried diatoms (Thalassiosira weissflogii) and bacteria were added to retrieved cores from Potter Cove (15-m depth, November 2007) in order to investigate the uptake of 3 main meiofauna taxa: nematodes, copepods and cumaceans. In the surface sediment layers, nematodes showed no real difference in uptake of both food sources. This outcome was supported by the natural delta 13C values and the community genus composition. In the first centimeter layer, the dominant genus was Daptonema which is known to be opportunistic, feeding on both bacteria and diatoms. Copepods and cumaceans on the other hand appeared to feed more on diatoms than on bacteria. This may point at a better adaptation to input of primary production from the water column. On the other hand, the overall carbon uptake of the given food sources was quite low for all taxa, indicating that likely other food sources might be of relevance for these meiobenthic organisms. Further studies are needed in order to better quantify the carbon requirements of these organisms. Article in Journal/Newspaper Antarc* Antarctic Antarctica King George Island Copepods DataCite Metadata Store (German National Library of Science and Technology) Antarctic King George Island Potter Cove |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Impact of climate induced glacier melt on marine coastal systems, Antarctica IMCOAST/IMCONet |
spellingShingle |
Impact of climate induced glacier melt on marine coastal systems, Antarctica IMCOAST/IMCONet Pasotti, Francesca De Troch, Marleen Raes, Maarten Vanreusel, Ann Results from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica, supplement to: Pasotti, Francesca; De Troch, Marleen; Raes, Maarten; Vanreusel, Ann (2012): Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica. Polar Biology, 35(11), 1629-1640 |
topic_facet |
Impact of climate induced glacier melt on marine coastal systems, Antarctica IMCOAST/IMCONet |
description |
Antarctic meiofauna is still strongly understud- ied, and so is its trophic position in the food web. Primary producers, such as phytoplankton, and bacteria may repre- sent important food sources for shallow water metazoans, and the role of meiobenthos in the benthic-pelagic coupling represents an important brick for food web understanding. In a laboratory, feeding experiment 13C-labeled freeze- dried diatoms (Thalassiosira weissflogii) and bacteria were added to retrieved cores from Potter Cove (15-m depth, November 2007) in order to investigate the uptake of 3 main meiofauna taxa: nematodes, copepods and cumaceans. In the surface sediment layers, nematodes showed no real difference in uptake of both food sources. This outcome was supported by the natural delta 13C values and the community genus composition. In the first centimeter layer, the dominant genus was Daptonema which is known to be opportunistic, feeding on both bacteria and diatoms. Copepods and cumaceans on the other hand appeared to feed more on diatoms than on bacteria. This may point at a better adaptation to input of primary production from the water column. On the other hand, the overall carbon uptake of the given food sources was quite low for all taxa, indicating that likely other food sources might be of relevance for these meiobenthic organisms. Further studies are needed in order to better quantify the carbon requirements of these organisms. |
format |
Article in Journal/Newspaper |
author |
Pasotti, Francesca De Troch, Marleen Raes, Maarten Vanreusel, Ann |
author_facet |
Pasotti, Francesca De Troch, Marleen Raes, Maarten Vanreusel, Ann |
author_sort |
Pasotti, Francesca |
title |
Results from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica, supplement to: Pasotti, Francesca; De Troch, Marleen; Raes, Maarten; Vanreusel, Ann (2012): Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica. Polar Biology, 35(11), 1629-1640 |
title_short |
Results from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica, supplement to: Pasotti, Francesca; De Troch, Marleen; Raes, Maarten; Vanreusel, Ann (2012): Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica. Polar Biology, 35(11), 1629-1640 |
title_full |
Results from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica, supplement to: Pasotti, Francesca; De Troch, Marleen; Raes, Maarten; Vanreusel, Ann (2012): Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica. Polar Biology, 35(11), 1629-1640 |
title_fullStr |
Results from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica, supplement to: Pasotti, Francesca; De Troch, Marleen; Raes, Maarten; Vanreusel, Ann (2012): Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica. Polar Biology, 35(11), 1629-1640 |
title_full_unstemmed |
Results from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica, supplement to: Pasotti, Francesca; De Troch, Marleen; Raes, Maarten; Vanreusel, Ann (2012): Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica. Polar Biology, 35(11), 1629-1640 |
title_sort |
results from a stable isotope tracer experiment in potter cove, king george island, antarctica, supplement to: pasotti, francesca; de troch, marleen; raes, maarten; vanreusel, ann (2012): feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in potter cove, king george island, antarctica. polar biology, 35(11), 1629-1640 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2012 |
url |
https://dx.doi.org/10.1594/pangaea.811380 https://doi.pangaea.de/10.1594/PANGAEA.811380 |
geographic |
Antarctic King George Island Potter Cove |
geographic_facet |
Antarctic King George Island Potter Cove |
genre |
Antarc* Antarctic Antarctica King George Island Copepods |
genre_facet |
Antarc* Antarctic Antarctica King George Island Copepods |
op_relation |
https://dx.doi.org/10.1007/s00300-012-1203-6 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.811380 https://doi.org/10.1007/s00300-012-1203-6 |
_version_ |
1766263327820873728 |