Analysis of Energy Flow in US GLOBEC Ecosystems Using End-to-End Models
published in Oceanography 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...
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ftinsu:oai:HAL:hal-00950754v1 2023-12-31T10:00:43+01:00 Analysis of Energy Flow in US GLOBEC Ecosystems Using End-to-End Models Ruzicka, J.J. Steeele, J.H. Gaichas, S. Ballerini, Tosca Gifford, D. J. Brodeur, R. D. Hofmann, E.E. 5 Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) 2013 https://hal.science/hal-00950754 https://doi.org/10.5670/oceanog.2013.77 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5670/oceanog.2013.77 hal-00950754 https://hal.science/hal-00950754 doi:10.5670/oceanog.2013.77 https://hal.science/hal-00950754 2013, Oceanography 26(4):82-97. ⟨10.5670/oceanog.2013.77⟩ [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems info:eu-repo/semantics/other Other publications 2013 ftinsu https://doi.org/10.5670/oceanog.2013.77 2023-12-06T17:22:25Z published in Oceanography 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. Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Alaska Institut national des sciences de l'Univers: HAL-INSU Oceanography 26 4 82 97 |
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Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
spellingShingle |
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Ruzicka, J.J. Steeele, J.H. Gaichas, S. Ballerini, Tosca Gifford, D. J. Brodeur, R. D. Hofmann, E.E. Analysis of Energy Flow in US GLOBEC Ecosystems Using End-to-End Models |
topic_facet |
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
description |
published in Oceanography 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. |
author2 |
5 Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) |
format |
Other/Unknown Material |
author |
Ruzicka, J.J. Steeele, J.H. Gaichas, S. Ballerini, Tosca Gifford, D. J. Brodeur, R. D. Hofmann, E.E. |
author_facet |
Ruzicka, J.J. Steeele, J.H. Gaichas, S. Ballerini, Tosca Gifford, D. J. Brodeur, R. D. Hofmann, E.E. |
author_sort |
Ruzicka, J.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 |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-00950754 https://doi.org/10.5670/oceanog.2013.77 |
genre |
Antarc* Antarctic Antarctic Peninsula Alaska |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Alaska |
op_source |
https://hal.science/hal-00950754 2013, Oceanography 26(4):82-97. ⟨10.5670/oceanog.2013.77⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5670/oceanog.2013.77 hal-00950754 https://hal.science/hal-00950754 doi:10.5670/oceanog.2013.77 |
op_doi |
https://doi.org/10.5670/oceanog.2013.77 |
container_title |
Oceanography |
container_volume |
26 |
container_issue |
4 |
container_start_page |
82 |
op_container_end_page |
97 |
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1786790326724198400 |