Daily rations and growth of larval krill Euphausia superba in the Eastern Bellingshausen Sea during austral autumn.
As the German contribution to the Southern Ocean Global Ocean Ecosystems Dynamics Study (SO GLOBEC), RVPolarstern visited the Eastern Bellingshausen Sea between 18 April and 1 May 2001. This paper examines in situ feedingcycles, ingestion rates and growth of larval krill Euphausia superba. Larval kr...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Online Access: | https://epic.awi.de/id/eprint/8462/ https://epic.awi.de/id/eprint/8462/1/Pak2003a.pdf https://doi.org/10.1016/j.dsr2.2004.08.003 https://hdl.handle.net/10013/epic.18993 https://hdl.handle.net/10013/epic.18993.d001 |
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ftawi:oai:epic.awi.de:8462 2023-09-05T13:18:27+02:00 Daily rations and growth of larval krill Euphausia superba in the Eastern Bellingshausen Sea during austral autumn. Pakhomov, E. A. Atkinson, A. Meyer, Bettina Oettl, B. Bathmann, Ulrich 2004 application/pdf https://epic.awi.de/id/eprint/8462/ https://epic.awi.de/id/eprint/8462/1/Pak2003a.pdf https://doi.org/10.1016/j.dsr2.2004.08.003 https://hdl.handle.net/10013/epic.18993 https://hdl.handle.net/10013/epic.18993.d001 unknown https://epic.awi.de/id/eprint/8462/1/Pak2003a.pdf https://hdl.handle.net/10013/epic.18993.d001 Pakhomov, E. A. , Atkinson, A. , Meyer, B. orcid:0000-0001-6804-9896 , Oettl, B. and Bathmann, U. (2004) Daily rations and growth of larval krill Euphausia superba in the Eastern Bellingshausen Sea during austral autumn. , Deep-sea research part ii-topical studies in oceanography, 51 , pp. 2185-2198 . doi:10.1016/j.dsr2.2004.08.003 <https://doi.org/10.1016/j.dsr2.2004.08.003> , hdl:10013/epic.18993 EPIC3Deep-sea research part ii-topical studies in oceanography, 51, pp. 2185-2198 Article isiRev 2004 ftawi https://doi.org/10.1016/j.dsr2.2004.08.003 2023-08-22T19:47:25Z As the German contribution to the Southern Ocean Global Ocean Ecosystems Dynamics Study (SO GLOBEC), RVPolarstern visited the Eastern Bellingshausen Sea between 18 April and 1 May 2001. This paper examines in situ feedingcycles, ingestion rates and growth of larval krill Euphausia superba. Larval krill were exceptionally numerous, especiallyover the shelf break and continental slope: mean 8872 larvaem 2, maximum 30 084 larvaem 2. The developmentalstage composition of krill larvae over the shelf was advanced compared to that at continental slope stations, which mayhave resulted from enhanced food availability over the shelf. Despite the season being late autumn, the feeding activityof larval krill was similar to published summer rates. The intermoult period of larval krill ranged from 6 to 17 days, withdaily growth rates reaching 2.2% of body length, 8.7% of body wet mass and 5.7% of body carbon. Daily ingestionrates were 8.517.6 mgCind 1 d 1 for calyptopis 3 to furcilia 2 and 35.157.4 mgCind 1 d 1 for furcilia 35, and werepositively correlated with ambient chlorophyll a concentrations. Daily rations showed the same tendency, ranging from21.5 to 44.5% of body Cd 1 (calyptopis 3 to furcilia 2) and from 17.8 to 29.2% of body Cd 1 (furcilia 35).Comparison of daily rations between open water and sea ice stations supports the notion that larval krill at low pelagicfood supply under the sea ice have to exploit ice biota to sustain their metabolic demands.r 2004 Published by Elsevier Ltd. Article in Journal/Newspaper Bellingshausen Sea Euphausia superba Sea ice Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Austral Bellingshausen Sea Southern Ocean Deep Sea Research Part II: Topical Studies in Oceanography 51 17-19 2185 2198 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
As the German contribution to the Southern Ocean Global Ocean Ecosystems Dynamics Study (SO GLOBEC), RVPolarstern visited the Eastern Bellingshausen Sea between 18 April and 1 May 2001. This paper examines in situ feedingcycles, ingestion rates and growth of larval krill Euphausia superba. Larval krill were exceptionally numerous, especiallyover the shelf break and continental slope: mean 8872 larvaem 2, maximum 30 084 larvaem 2. The developmentalstage composition of krill larvae over the shelf was advanced compared to that at continental slope stations, which mayhave resulted from enhanced food availability over the shelf. Despite the season being late autumn, the feeding activityof larval krill was similar to published summer rates. The intermoult period of larval krill ranged from 6 to 17 days, withdaily growth rates reaching 2.2% of body length, 8.7% of body wet mass and 5.7% of body carbon. Daily ingestionrates were 8.517.6 mgCind 1 d 1 for calyptopis 3 to furcilia 2 and 35.157.4 mgCind 1 d 1 for furcilia 35, and werepositively correlated with ambient chlorophyll a concentrations. Daily rations showed the same tendency, ranging from21.5 to 44.5% of body Cd 1 (calyptopis 3 to furcilia 2) and from 17.8 to 29.2% of body Cd 1 (furcilia 35).Comparison of daily rations between open water and sea ice stations supports the notion that larval krill at low pelagicfood supply under the sea ice have to exploit ice biota to sustain their metabolic demands.r 2004 Published by Elsevier Ltd. |
format |
Article in Journal/Newspaper |
author |
Pakhomov, E. A. Atkinson, A. Meyer, Bettina Oettl, B. Bathmann, Ulrich |
spellingShingle |
Pakhomov, E. A. Atkinson, A. Meyer, Bettina Oettl, B. Bathmann, Ulrich Daily rations and growth of larval krill Euphausia superba in the Eastern Bellingshausen Sea during austral autumn. |
author_facet |
Pakhomov, E. A. Atkinson, A. Meyer, Bettina Oettl, B. Bathmann, Ulrich |
author_sort |
Pakhomov, E. A. |
title |
Daily rations and growth of larval krill Euphausia superba in the Eastern Bellingshausen Sea during austral autumn. |
title_short |
Daily rations and growth of larval krill Euphausia superba in the Eastern Bellingshausen Sea during austral autumn. |
title_full |
Daily rations and growth of larval krill Euphausia superba in the Eastern Bellingshausen Sea during austral autumn. |
title_fullStr |
Daily rations and growth of larval krill Euphausia superba in the Eastern Bellingshausen Sea during austral autumn. |
title_full_unstemmed |
Daily rations and growth of larval krill Euphausia superba in the Eastern Bellingshausen Sea during austral autumn. |
title_sort |
daily rations and growth of larval krill euphausia superba in the eastern bellingshausen sea during austral autumn. |
publishDate |
2004 |
url |
https://epic.awi.de/id/eprint/8462/ https://epic.awi.de/id/eprint/8462/1/Pak2003a.pdf https://doi.org/10.1016/j.dsr2.2004.08.003 https://hdl.handle.net/10013/epic.18993 https://hdl.handle.net/10013/epic.18993.d001 |
geographic |
Austral Bellingshausen Sea Southern Ocean |
geographic_facet |
Austral Bellingshausen Sea Southern Ocean |
genre |
Bellingshausen Sea Euphausia superba Sea ice Southern Ocean |
genre_facet |
Bellingshausen Sea Euphausia superba Sea ice Southern Ocean |
op_source |
EPIC3Deep-sea research part ii-topical studies in oceanography, 51, pp. 2185-2198 |
op_relation |
https://epic.awi.de/id/eprint/8462/1/Pak2003a.pdf https://hdl.handle.net/10013/epic.18993.d001 Pakhomov, E. A. , Atkinson, A. , Meyer, B. orcid:0000-0001-6804-9896 , Oettl, B. and Bathmann, U. (2004) Daily rations and growth of larval krill Euphausia superba in the Eastern Bellingshausen Sea during austral autumn. , Deep-sea research part ii-topical studies in oceanography, 51 , pp. 2185-2198 . doi:10.1016/j.dsr2.2004.08.003 <https://doi.org/10.1016/j.dsr2.2004.08.003> , hdl:10013/epic.18993 |
op_doi |
https://doi.org/10.1016/j.dsr2.2004.08.003 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
51 |
container_issue |
17-19 |
container_start_page |
2185 |
op_container_end_page |
2198 |
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1776199408113680384 |