End-to-end foodweb control of fish production on Georges Bank
The ecosystem approach to management requires the productivity of individual fish stocks to be considered in the context of the entire ecosystem. We derive an annual end-to-end budget for the Georges Bank ecosystem, based on data from the GLOBEC programme and fisheries surveys for the years 1993-200...
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2009
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Online Access: | https://digitalcommons.uri.edu/gsofacpubs/928 https://doi.org/10.1093/icesjms/fsp180 |
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ftunivrhodeislan:oai:digitalcommons.uri.edu:gsofacpubs-1897 2023-10-09T21:51:39+02:00 End-to-end foodweb control of fish production on Georges Bank Collie, Jeremy S. Gifford, Dian J. Steele, John H. 2009-12-01T08:00:00Z https://digitalcommons.uri.edu/gsofacpubs/928 https://doi.org/10.1093/icesjms/fsp180 unknown DigitalCommons@URI https://digitalcommons.uri.edu/gsofacpubs/928 doi:10.1093/icesjms/fsp180 https://doi.org/10.1093/icesjms/fsp180 Graduate School of Oceanography Faculty Publications Community dynamics Ecosystem-based management End-to-end Georges Bank Marine fish text 2009 ftunivrhodeislan https://doi.org/10.1093/icesjms/fsp180 2023-09-11T18:07:44Z The ecosystem approach to management requires the productivity of individual fish stocks to be considered in the context of the entire ecosystem. We derive an annual end-to-end budget for the Georges Bank ecosystem, based on data from the GLOBEC programme and fisheries surveys for the years 1993-2002. Scenarios based on this budget describe the consequences of various alterations in the Georges Bank trophic web: reduced nutrient input, increased benthic production, removal of carnivorous plankton, and changes in species dominance within fish guilds. Potential yields of cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) are compared with historical catches and estimates of maximum sustainable yield (MSY) from recent stock assessments. The MSYs of cod and haddock can be met if the fish community is restructured to make them the dominant species in their respective diet-defined guilds. A return to the balance of fish species present in the early 20th century would depend on an increase in the fraction of primary production going to the benthos rather than to plankton. Estimates of energy flux through the Georges Bank trophic web indicate that rebuilding the principal groundfish species to their MSY levels requires restructuring of the fish community and repartitioning of energy within the foodweb. © 2009 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. Text Gadus morhua University of Rhode Island: DigitalCommons@URI ICES Journal of Marine Science 66 10 2223 2232 |
institution |
Open Polar |
collection |
University of Rhode Island: DigitalCommons@URI |
op_collection_id |
ftunivrhodeislan |
language |
unknown |
topic |
Community dynamics Ecosystem-based management End-to-end Georges Bank Marine fish |
spellingShingle |
Community dynamics Ecosystem-based management End-to-end Georges Bank Marine fish Collie, Jeremy S. Gifford, Dian J. Steele, John H. End-to-end foodweb control of fish production on Georges Bank |
topic_facet |
Community dynamics Ecosystem-based management End-to-end Georges Bank Marine fish |
description |
The ecosystem approach to management requires the productivity of individual fish stocks to be considered in the context of the entire ecosystem. We derive an annual end-to-end budget for the Georges Bank ecosystem, based on data from the GLOBEC programme and fisheries surveys for the years 1993-2002. Scenarios based on this budget describe the consequences of various alterations in the Georges Bank trophic web: reduced nutrient input, increased benthic production, removal of carnivorous plankton, and changes in species dominance within fish guilds. Potential yields of cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) are compared with historical catches and estimates of maximum sustainable yield (MSY) from recent stock assessments. The MSYs of cod and haddock can be met if the fish community is restructured to make them the dominant species in their respective diet-defined guilds. A return to the balance of fish species present in the early 20th century would depend on an increase in the fraction of primary production going to the benthos rather than to plankton. Estimates of energy flux through the Georges Bank trophic web indicate that rebuilding the principal groundfish species to their MSY levels requires restructuring of the fish community and repartitioning of energy within the foodweb. © 2009 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. |
format |
Text |
author |
Collie, Jeremy S. Gifford, Dian J. Steele, John H. |
author_facet |
Collie, Jeremy S. Gifford, Dian J. Steele, John H. |
author_sort |
Collie, Jeremy S. |
title |
End-to-end foodweb control of fish production on Georges Bank |
title_short |
End-to-end foodweb control of fish production on Georges Bank |
title_full |
End-to-end foodweb control of fish production on Georges Bank |
title_fullStr |
End-to-end foodweb control of fish production on Georges Bank |
title_full_unstemmed |
End-to-end foodweb control of fish production on Georges Bank |
title_sort |
end-to-end foodweb control of fish production on georges bank |
publisher |
DigitalCommons@URI |
publishDate |
2009 |
url |
https://digitalcommons.uri.edu/gsofacpubs/928 https://doi.org/10.1093/icesjms/fsp180 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Graduate School of Oceanography Faculty Publications |
op_relation |
https://digitalcommons.uri.edu/gsofacpubs/928 doi:10.1093/icesjms/fsp180 https://doi.org/10.1093/icesjms/fsp180 |
op_doi |
https://doi.org/10.1093/icesjms/fsp180 |
container_title |
ICES Journal of Marine Science |
container_volume |
66 |
container_issue |
10 |
container_start_page |
2223 |
op_container_end_page |
2232 |
_version_ |
1779314783902760960 |