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%...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/164011 2023-05-15T13:47:16+02:00 Carbon fluxes to Antarctic top predators Van Franeker, Jan J.A. Bathmann, Ulrich U.V. Mathot, Sylvie 1997 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/164011 https://dipot.ulb.ac.be/dspace/bitstream/2013/164011/1/Elsevier_147641.pdf en eng uri/info:doi/10.1016/S0967-0645(96)00078-1 uri/info:pii/S0967064596000781 uri/info:scp/0030971877 https://dipot.ulb.ac.be/dspace/bitstream/2013/164011/1/Elsevier_147641.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/164011 1 full-text file(s): info:eu-repo/semantics/restrictedAccess Deep-sea research. Part 2. Topical studies in oceanography, 44 (1-2 Océanographie physique et chimique info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 1997 ftunivbruxelles 2022-06-12T21:25:31Z 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. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic ice algae Southern Ocean DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Océanographie physique et chimique |
spellingShingle |
Océanographie physique et chimique Van Franeker, Jan J.A. Bathmann, Ulrich U.V. Mathot, Sylvie Carbon fluxes to Antarctic top predators |
topic_facet |
Océanographie physique et chimique |
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. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Van Franeker, Jan J.A. Bathmann, Ulrich U.V. Mathot, Sylvie |
author_facet |
Van Franeker, Jan J.A. Bathmann, Ulrich U.V. Mathot, Sylvie |
author_sort |
Van Franeker, Jan 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 |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/164011 https://dipot.ulb.ac.be/dspace/bitstream/2013/164011/1/Elsevier_147641.pdf |
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 2. Topical studies in oceanography, 44 (1-2 |
op_relation |
uri/info:doi/10.1016/S0967-0645(96)00078-1 uri/info:pii/S0967064596000781 uri/info:scp/0030971877 https://dipot.ulb.ac.be/dspace/bitstream/2013/164011/1/Elsevier_147641.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/164011 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/restrictedAccess |
_version_ |
1766246837875900416 |