Analysis of energy flow in US GLOBEC ecosystems using end-to-end models
Author Posting. © The Oceanography Society, 2013. This article is posted here by permission of The Oceanography Society for personal use, not for redistribution. The definitive version was published in Oceanography 26, no. 4 (2013): 82–97, doi:10.5670/oceanog.2013.77. End-to-end models were construc...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/6589 2023-05-15T13:53:14+02:00 Analysis of energy flow in US GLOBEC ecosystems using end-to-end models Ruzicka, James J. Steele, John H. Gaichas, Sarah K. Ballerini, Tosca Gifford, Dian J. Brodeur, Richard D. Hofmann, Eileen E. 2013-12 application/pdf https://hdl.handle.net/1912/6589 en_US eng The Oceanography Society https://doi.org/10.5670/oceanog.2013.77 Oceanography 26, no. 4 (2013): 82–97 https://hdl.handle.net/1912/6589 doi:10.5670/oceanog.2013.77 Oceanography 26, no. 4 (2013): 82–97 doi:10.5670/oceanog.2013.77 Article 2013 ftwhoas https://doi.org/10.5670/oceanog.2013.77 2022-05-28T22:59:05Z Author Posting. © The Oceanography Society, 2013. This article is posted here by permission of The Oceanography Society for personal use, not for redistribution. The definitive version was published in Oceanography 26, no. 4 (2013): 82–97, doi:10.5670/oceanog.2013.77. End-to-end models were constructed to examine and compare the trophic structure and energy flow in coastal shelf ecosystems of four US Global Ocean Ecosystem Dynamics (GLOBEC) study regions: the Northern California Current, the Central Gulf of Alaska, Georges Bank, and the Southwestern Antarctic Peninsula. High-quality data collected on system components and processes over the life of the program were used as input to the models. Although the US GLOBEC program was species-centric, focused on the study of a selected set of target species of ecological or economic importance, we took a broader community-level approach to describe end-to-end energy flow, from nutrient input to fishery production. We built four end-to-end models that were structured similarly in terms of functional group composition and time scale. The models were used to identify the mid-trophic level groups that place the greatest demand on lower trophic level production while providing the greatest support to higher trophic level production. In general, euphausiids and planktivorous forage fishes were the critical energy-transfer nodes; however, some differences between ecosystems are apparent. For example, squid provide an important alternative energy pathway to forage fish, moderating the effects of changes to forage fish abundance in scenario analyses in the Central Gulf of Alaska. In the Northern California Current, large scyphozoan jellyfish are important consumers of plankton production, but can divert energy from the rest of the food web when abundant. This study was supported by grants from the NSF GLOBEC Pan-regional Synthesis Program to JJR (NSF 0814494), DJG (NSF 0814592), EEH (NSF 0814584), and JHS (NSF 0814474). Additional support came from grants from NSF ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Alaska Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Antarctic Antarctic Peninsula Gulf of Alaska Oceanography 26 4 82 97 |
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Open Polar |
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Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
description |
Author Posting. © The Oceanography Society, 2013. This article is posted here by permission of The Oceanography Society for personal use, not for redistribution. The definitive version was published in Oceanography 26, no. 4 (2013): 82–97, doi:10.5670/oceanog.2013.77. End-to-end models were constructed to examine and compare the trophic structure and energy flow in coastal shelf ecosystems of four US Global Ocean Ecosystem Dynamics (GLOBEC) study regions: the Northern California Current, the Central Gulf of Alaska, Georges Bank, and the Southwestern Antarctic Peninsula. High-quality data collected on system components and processes over the life of the program were used as input to the models. Although the US GLOBEC program was species-centric, focused on the study of a selected set of target species of ecological or economic importance, we took a broader community-level approach to describe end-to-end energy flow, from nutrient input to fishery production. We built four end-to-end models that were structured similarly in terms of functional group composition and time scale. The models were used to identify the mid-trophic level groups that place the greatest demand on lower trophic level production while providing the greatest support to higher trophic level production. In general, euphausiids and planktivorous forage fishes were the critical energy-transfer nodes; however, some differences between ecosystems are apparent. For example, squid provide an important alternative energy pathway to forage fish, moderating the effects of changes to forage fish abundance in scenario analyses in the Central Gulf of Alaska. In the Northern California Current, large scyphozoan jellyfish are important consumers of plankton production, but can divert energy from the rest of the food web when abundant. This study was supported by grants from the NSF GLOBEC Pan-regional Synthesis Program to JJR (NSF 0814494), DJG (NSF 0814592), EEH (NSF 0814584), and JHS (NSF 0814474). Additional support came from grants from NSF ... |
format |
Article in Journal/Newspaper |
author |
Ruzicka, James J. Steele, John H. Gaichas, Sarah K. Ballerini, Tosca Gifford, Dian J. Brodeur, Richard D. Hofmann, Eileen E. |
spellingShingle |
Ruzicka, James J. Steele, John H. Gaichas, Sarah K. Ballerini, Tosca Gifford, Dian J. Brodeur, Richard D. Hofmann, Eileen E. Analysis of energy flow in US GLOBEC ecosystems using end-to-end models |
author_facet |
Ruzicka, James J. Steele, John H. Gaichas, Sarah K. Ballerini, Tosca Gifford, Dian J. Brodeur, Richard D. Hofmann, Eileen E. |
author_sort |
Ruzicka, James J. |
title |
Analysis of energy flow in US GLOBEC ecosystems using end-to-end models |
title_short |
Analysis of energy flow in US GLOBEC ecosystems using end-to-end models |
title_full |
Analysis of energy flow in US GLOBEC ecosystems using end-to-end models |
title_fullStr |
Analysis of energy flow in US GLOBEC ecosystems using end-to-end models |
title_full_unstemmed |
Analysis of energy flow in US GLOBEC ecosystems using end-to-end models |
title_sort |
analysis of energy flow in us globec ecosystems using end-to-end models |
publisher |
The Oceanography Society |
publishDate |
2013 |
url |
https://hdl.handle.net/1912/6589 |
geographic |
Antarctic Antarctic Peninsula Gulf of Alaska |
geographic_facet |
Antarctic Antarctic Peninsula Gulf of Alaska |
genre |
Antarc* Antarctic Antarctic Peninsula Alaska |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Alaska |
op_source |
Oceanography 26, no. 4 (2013): 82–97 doi:10.5670/oceanog.2013.77 |
op_relation |
https://doi.org/10.5670/oceanog.2013.77 Oceanography 26, no. 4 (2013): 82–97 https://hdl.handle.net/1912/6589 doi:10.5670/oceanog.2013.77 |
op_doi |
https://doi.org/10.5670/oceanog.2013.77 |
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Oceanography |
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26 |
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4 |
container_start_page |
82 |
op_container_end_page |
97 |
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1766258250153459712 |