Carbon fluxes to Antarctic top predators
The role of birds, seals and whales in the overall biological carbon fluxes of the Southern Ocean has been estimated based on census counts of top predator individuals in the region. Using standard routines for conversion to food consumption and respiration rates we demonstrate that at most 0.3-0.6%...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Language: | English |
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Online Access: | https://research.wur.nl/en/publications/carbon-fluxes-to-antarctic-top-predators https://doi.org/10.1016/S0967-0645(96)00078-1 |
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ftunivwagenin:oai:library.wur.nl:wurpubs/305372 2024-01-14T10:00:47+01:00 Carbon fluxes to Antarctic top predators van Franeker, J.A. Bathmann, U.V. Mathot, S. 1997 application/pdf https://research.wur.nl/en/publications/carbon-fluxes-to-antarctic-top-predators https://doi.org/10.1016/S0967-0645(96)00078-1 en eng https://edepot.wur.nl/323784 https://research.wur.nl/en/publications/carbon-fluxes-to-antarctic-top-predators doi:10.1016/S0967-0645(96)00078-1 info:eu-repo/semantics/restrictedAccess Wageningen University & Research Deep-Sea Research. Part II, tropical studies in oceanography 44 (1997) 1-2 ISSN: 0967-0645 Life Science info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 1997 ftunivwagenin https://doi.org/10.1016/S0967-0645(96)00078-1 2023-12-20T23:21:00Z The role of birds, seals and whales in the overall biological carbon fluxes of the Southern Ocean has been estimated based on census counts of top predator individuals in the region. Using standard routines for conversion to food consumption and respiration rates we demonstrate that at most 0.3-0.6% of primary production in the Southern Ocean is exhaled, even if primary production by ice-algae is ignored. Food requirements of top predators indicate that photosynthetic production in the ice biota likely is substantial, deserving future attention and research. The results of these field observations deviate strongly from much higher top-predator respiration of 2-22.5% of primary production, as recently suggested from theorethical models. The findings illustrate that the Antarctic food web is more complex than hitherto acknowledged. Article in Journal/Newspaper Antarc* Antarctic ice algae Southern Ocean Wageningen UR (University & Research Centre): Digital Library Antarctic Southern Ocean The Antarctic Deep Sea Research Part II: Topical Studies in Oceanography 44 1-2 435 455 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
Life Science |
spellingShingle |
Life Science van Franeker, J.A. Bathmann, U.V. Mathot, S. Carbon fluxes to Antarctic top predators |
topic_facet |
Life Science |
description |
The role of birds, seals and whales in the overall biological carbon fluxes of the Southern Ocean has been estimated based on census counts of top predator individuals in the region. Using standard routines for conversion to food consumption and respiration rates we demonstrate that at most 0.3-0.6% of primary production in the Southern Ocean is exhaled, even if primary production by ice-algae is ignored. Food requirements of top predators indicate that photosynthetic production in the ice biota likely is substantial, deserving future attention and research. The results of these field observations deviate strongly from much higher top-predator respiration of 2-22.5% of primary production, as recently suggested from theorethical models. The findings illustrate that the Antarctic food web is more complex than hitherto acknowledged. |
format |
Article in Journal/Newspaper |
author |
van Franeker, J.A. Bathmann, U.V. Mathot, S. |
author_facet |
van Franeker, J.A. Bathmann, U.V. Mathot, S. |
author_sort |
van Franeker, J.A. |
title |
Carbon fluxes to Antarctic top predators |
title_short |
Carbon fluxes to Antarctic top predators |
title_full |
Carbon fluxes to Antarctic top predators |
title_fullStr |
Carbon fluxes to Antarctic top predators |
title_full_unstemmed |
Carbon fluxes to Antarctic top predators |
title_sort |
carbon fluxes to antarctic top predators |
publishDate |
1997 |
url |
https://research.wur.nl/en/publications/carbon-fluxes-to-antarctic-top-predators https://doi.org/10.1016/S0967-0645(96)00078-1 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic ice algae Southern Ocean |
genre_facet |
Antarc* Antarctic ice algae Southern Ocean |
op_source |
Deep-Sea Research. Part II, tropical studies in oceanography 44 (1997) 1-2 ISSN: 0967-0645 |
op_relation |
https://edepot.wur.nl/323784 https://research.wur.nl/en/publications/carbon-fluxes-to-antarctic-top-predators doi:10.1016/S0967-0645(96)00078-1 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1016/S0967-0645(96)00078-1 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
44 |
container_issue |
1-2 |
container_start_page |
435 |
op_container_end_page |
455 |
_version_ |
1788066673689886720 |