Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica
Antarctic meiofauna is still strongly understudied, and so is its trophic position in the food web. Primary producers, such as phytoplankton, and bacteria may represent important food sources for shallow water metazoans, and the role of meiobenthos in the benthic-pelagic coupling represents an impor...
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ftunivgent:oai:archive.ugent.be:3069012 2023-10-01T03:51:40+02:00 Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica Pasotti, Francesca De Troch, Marleen Raes, Maarten Vanreusel, Ann 2012 application/pdf https://biblio.ugent.be/publication/3069012 http://hdl.handle.net/1854/LU-3069012 https://doi.org/10.1007/s00300-012-1203-6 https://biblio.ugent.be/publication/3069012/file/3158497 eng eng https://biblio.ugent.be/publication/3069012 http://hdl.handle.net/1854/LU-3069012 http://dx.doi.org/10.1007/s00300-012-1203-6 https://biblio.ugent.be/publication/3069012/file/3158497 No license (in copyright) info:eu-repo/semantics/restrictedAccess POLAR BIOLOGY ISSN: 0722-4060 Biology and Life Sciences Feeding ecology West Antarctic Peninsula Meiobenthos Stable isotopes DEEP-SEA NEMATODES HARPACTICOID COPEPODS ORGANIC-MATTER PARAMPHIASCELLA-FULVOFASCIATA ESTUARINE NEMATODES DELTA-N-15 ANALYSIS TROPHIC STRUCTURE MARINE NEMATODES CLIMATE-CHANGE MARTEL INLET journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftunivgent https://doi.org/10.1007/s00300-012-1203-6 2023-09-06T22:32:17Z Antarctic meiofauna is still strongly understudied, and so is its trophic position in the food web. Primary producers, such as phytoplankton, and bacteria may represent 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 C-13-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 C-13 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 Antarctic Peninsula Antarctica King George Island Polar Biology Copepods Ghent University Academic Bibliography Antarctic Antarctic Peninsula King George Island Potter Cove Martel ENVELOPE(-58.353,-58.353,-62.092,-62.092) Martel Inlet ENVELOPE(-58.367,-58.367,-62.083,-62.083) Polar Biology 35 11 1629 1640 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences Feeding ecology West Antarctic Peninsula Meiobenthos Stable isotopes DEEP-SEA NEMATODES HARPACTICOID COPEPODS ORGANIC-MATTER PARAMPHIASCELLA-FULVOFASCIATA ESTUARINE NEMATODES DELTA-N-15 ANALYSIS TROPHIC STRUCTURE MARINE NEMATODES CLIMATE-CHANGE MARTEL INLET |
spellingShingle |
Biology and Life Sciences Feeding ecology West Antarctic Peninsula Meiobenthos Stable isotopes DEEP-SEA NEMATODES HARPACTICOID COPEPODS ORGANIC-MATTER PARAMPHIASCELLA-FULVOFASCIATA ESTUARINE NEMATODES DELTA-N-15 ANALYSIS TROPHIC STRUCTURE MARINE NEMATODES CLIMATE-CHANGE MARTEL INLET Pasotti, Francesca De Troch, Marleen Raes, Maarten Vanreusel, Ann Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
topic_facet |
Biology and Life Sciences Feeding ecology West Antarctic Peninsula Meiobenthos Stable isotopes DEEP-SEA NEMATODES HARPACTICOID COPEPODS ORGANIC-MATTER PARAMPHIASCELLA-FULVOFASCIATA ESTUARINE NEMATODES DELTA-N-15 ANALYSIS TROPHIC STRUCTURE MARINE NEMATODES CLIMATE-CHANGE MARTEL INLET |
description |
Antarctic meiofauna is still strongly understudied, and so is its trophic position in the food web. Primary producers, such as phytoplankton, and bacteria may represent 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 C-13-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 C-13 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 |
Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
title_short |
Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
title_full |
Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
title_fullStr |
Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
title_full_unstemmed |
Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
title_sort |
feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in potter cove, king george island, antarctica |
publishDate |
2012 |
url |
https://biblio.ugent.be/publication/3069012 http://hdl.handle.net/1854/LU-3069012 https://doi.org/10.1007/s00300-012-1203-6 https://biblio.ugent.be/publication/3069012/file/3158497 |
long_lat |
ENVELOPE(-58.353,-58.353,-62.092,-62.092) ENVELOPE(-58.367,-58.367,-62.083,-62.083) |
geographic |
Antarctic Antarctic Peninsula King George Island Potter Cove Martel Martel Inlet |
geographic_facet |
Antarctic Antarctic Peninsula King George Island Potter Cove Martel Martel Inlet |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica King George Island Polar Biology Copepods |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica King George Island Polar Biology Copepods |
op_source |
POLAR BIOLOGY ISSN: 0722-4060 |
op_relation |
https://biblio.ugent.be/publication/3069012 http://hdl.handle.net/1854/LU-3069012 http://dx.doi.org/10.1007/s00300-012-1203-6 https://biblio.ugent.be/publication/3069012/file/3158497 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00300-012-1203-6 |
container_title |
Polar Biology |
container_volume |
35 |
container_issue |
11 |
container_start_page |
1629 |
op_container_end_page |
1640 |
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1778516844314886144 |