QUANTIFYING FISHERIES BALANCE WITH A NOVEL PRODUCTION ESTIMATION METHOD
Balanced harvest is a controversial Ecosystem-Based Fisheries Management (EBFM) concept conceived with intent to minimize ecosystem disruption and maximize human benefits compared to traditional management. However, most marine ecosystems lack comprehensive production estimates necessary for impleme...
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ftunivrhodeislan:oai:digitalcommons.uri.edu:theses-2289 2023-07-30T04:05:54+02:00 QUANTIFYING FISHERIES BALANCE WITH A NOVEL PRODUCTION ESTIMATION METHOD Zottoli, Joseph 2018-01-01T08:00:00Z application/pdf https://digitalcommons.uri.edu/theses/1314 https://doi.org/10.23860/thesis-zottoli-joseph-2018 https://digitalcommons.uri.edu/context/theses/article/2289/viewcontent/Zottoli_uri_0186M_12034.pdf unknown DigitalCommons@URI https://digitalcommons.uri.edu/theses/1314 doi:10.23860/thesis-zottoli-joseph-2018 https://digitalcommons.uri.edu/context/theses/article/2289/viewcontent/Zottoli_uri_0186M_12034.pdf Open Access Master's Theses text 2018 ftunivrhodeislan https://doi.org/10.23860/thesis-zottoli-joseph-2018 2023-07-17T18:56:30Z Balanced harvest is a controversial Ecosystem-Based Fisheries Management (EBFM) concept conceived with intent to minimize ecosystem disruption and maximize human benefits compared to traditional management. However, most marine ecosystems lack comprehensive production estimates necessary for implementation. We developed and tested two new methods for estimating fish production at the species level with minimal data requirements. Application of our techniques to four ecological production units in the Northwest Atlantic (Mid-Atlantic Bight, Georges Bank, Gulf of Maine, and western Scotian Shelf) from 1991-2013 provided a direct estimate of 2032 kt yr-1 of total fish production. The degree of balance between catch and production distributions at the species level, assessed using application of a number of ecological indices, ranged from 0.14 to 0.91 on a scale from 0-1. Increased balance was positively associated with increased yield in the Gulf of Maine (Spearman’s, p < 0.001) but negatively associated in the Mid-Atlantic Bight (Spearman’s, p =0.045). Despite indefinite results about ecological and human impacts, we provide rare empirical exploration of balanced harvest at the species-level and outline new indicators for EBFM. Text Northwest Atlantic University of Rhode Island: DigitalCommons@URI |
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Open Polar |
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University of Rhode Island: DigitalCommons@URI |
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ftunivrhodeislan |
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description |
Balanced harvest is a controversial Ecosystem-Based Fisheries Management (EBFM) concept conceived with intent to minimize ecosystem disruption and maximize human benefits compared to traditional management. However, most marine ecosystems lack comprehensive production estimates necessary for implementation. We developed and tested two new methods for estimating fish production at the species level with minimal data requirements. Application of our techniques to four ecological production units in the Northwest Atlantic (Mid-Atlantic Bight, Georges Bank, Gulf of Maine, and western Scotian Shelf) from 1991-2013 provided a direct estimate of 2032 kt yr-1 of total fish production. The degree of balance between catch and production distributions at the species level, assessed using application of a number of ecological indices, ranged from 0.14 to 0.91 on a scale from 0-1. Increased balance was positively associated with increased yield in the Gulf of Maine (Spearman’s, p < 0.001) but negatively associated in the Mid-Atlantic Bight (Spearman’s, p =0.045). Despite indefinite results about ecological and human impacts, we provide rare empirical exploration of balanced harvest at the species-level and outline new indicators for EBFM. |
format |
Text |
author |
Zottoli, Joseph |
spellingShingle |
Zottoli, Joseph QUANTIFYING FISHERIES BALANCE WITH A NOVEL PRODUCTION ESTIMATION METHOD |
author_facet |
Zottoli, Joseph |
author_sort |
Zottoli, Joseph |
title |
QUANTIFYING FISHERIES BALANCE WITH A NOVEL PRODUCTION ESTIMATION METHOD |
title_short |
QUANTIFYING FISHERIES BALANCE WITH A NOVEL PRODUCTION ESTIMATION METHOD |
title_full |
QUANTIFYING FISHERIES BALANCE WITH A NOVEL PRODUCTION ESTIMATION METHOD |
title_fullStr |
QUANTIFYING FISHERIES BALANCE WITH A NOVEL PRODUCTION ESTIMATION METHOD |
title_full_unstemmed |
QUANTIFYING FISHERIES BALANCE WITH A NOVEL PRODUCTION ESTIMATION METHOD |
title_sort |
quantifying fisheries balance with a novel production estimation method |
publisher |
DigitalCommons@URI |
publishDate |
2018 |
url |
https://digitalcommons.uri.edu/theses/1314 https://doi.org/10.23860/thesis-zottoli-joseph-2018 https://digitalcommons.uri.edu/context/theses/article/2289/viewcontent/Zottoli_uri_0186M_12034.pdf |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Open Access Master's Theses |
op_relation |
https://digitalcommons.uri.edu/theses/1314 doi:10.23860/thesis-zottoli-joseph-2018 https://digitalcommons.uri.edu/context/theses/article/2289/viewcontent/Zottoli_uri_0186M_12034.pdf |
op_doi |
https://doi.org/10.23860/thesis-zottoli-joseph-2018 |
_version_ |
1772818200619122688 |