Decadal changes in the productivity of new England fish populations
The Northwest Atlantic continental shelf is a large ecosystem undergoing rapid environmental changes, which are expected to modify the productivity of natural marine resources. Current management of most fished species assumes stationary production relationships or time-invariant recruitment rates....
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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ftunivrhodeislan:oai:digitalcommons.uri.edu:gsofacpubs-1880 2023-10-09T21:54:40+02:00 Decadal changes in the productivity of new England fish populations Tableau, Adrien Collie, Jeremy S. Bell, Richard J. Minto, Cóilín 2019-01-01T08:00:00Z https://digitalcommons.uri.edu/gsofacpubs/911 https://doi.org/10.1139/cjfas-2018-0255 unknown DigitalCommons@URI https://digitalcommons.uri.edu/gsofacpubs/911 doi:10.1139/cjfas-2018-0255 https://doi.org/10.1139/cjfas-2018-0255 Graduate School of Oceanography Faculty Publications text 2019 ftunivrhodeislan https://doi.org/10.1139/cjfas-2018-0255 2023-09-11T18:07:44Z The Northwest Atlantic continental shelf is a large ecosystem undergoing rapid environmental changes, which are expected to modify the productivity of natural marine resources. Current management of most fished species assumes stationary production relationships or time-invariant recruitment rates. With linear state-space models, we examined the evidence of dynamic productivity for 25 stocks of the Northeast US shelf. We expanded the suite of options available within the state-space approach to produce robust estimates. Fifteen of the stocks exhibited time-varying productivity or changes in their maximum reproductive rate. Few productivity time series are related across the whole region, though adjacent stocks of the same species exhibited similar trends. Some links to region-wide environmental variables were observed. We demonstrate that fish recruitment can often be better predicted over a short-term horizon by accounting for dynamic productivity, which could be valuable for fisheries management. Improving predictions by incorporating environmental covariates or covariance among the stocks must be considered case by case and with caution, as their relationships may change over time. Text Northwest Atlantic University of Rhode Island: DigitalCommons@URI Canadian Journal of Fisheries and Aquatic Sciences 76 9 1528 1540 |
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University of Rhode Island: DigitalCommons@URI |
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ftunivrhodeislan |
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unknown |
description |
The Northwest Atlantic continental shelf is a large ecosystem undergoing rapid environmental changes, which are expected to modify the productivity of natural marine resources. Current management of most fished species assumes stationary production relationships or time-invariant recruitment rates. With linear state-space models, we examined the evidence of dynamic productivity for 25 stocks of the Northeast US shelf. We expanded the suite of options available within the state-space approach to produce robust estimates. Fifteen of the stocks exhibited time-varying productivity or changes in their maximum reproductive rate. Few productivity time series are related across the whole region, though adjacent stocks of the same species exhibited similar trends. Some links to region-wide environmental variables were observed. We demonstrate that fish recruitment can often be better predicted over a short-term horizon by accounting for dynamic productivity, which could be valuable for fisheries management. Improving predictions by incorporating environmental covariates or covariance among the stocks must be considered case by case and with caution, as their relationships may change over time. |
format |
Text |
author |
Tableau, Adrien Collie, Jeremy S. Bell, Richard J. Minto, Cóilín |
spellingShingle |
Tableau, Adrien Collie, Jeremy S. Bell, Richard J. Minto, Cóilín Decadal changes in the productivity of new England fish populations |
author_facet |
Tableau, Adrien Collie, Jeremy S. Bell, Richard J. Minto, Cóilín |
author_sort |
Tableau, Adrien |
title |
Decadal changes in the productivity of new England fish populations |
title_short |
Decadal changes in the productivity of new England fish populations |
title_full |
Decadal changes in the productivity of new England fish populations |
title_fullStr |
Decadal changes in the productivity of new England fish populations |
title_full_unstemmed |
Decadal changes in the productivity of new England fish populations |
title_sort |
decadal changes in the productivity of new england fish populations |
publisher |
DigitalCommons@URI |
publishDate |
2019 |
url |
https://digitalcommons.uri.edu/gsofacpubs/911 https://doi.org/10.1139/cjfas-2018-0255 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Graduate School of Oceanography Faculty Publications |
op_relation |
https://digitalcommons.uri.edu/gsofacpubs/911 doi:10.1139/cjfas-2018-0255 https://doi.org/10.1139/cjfas-2018-0255 |
op_doi |
https://doi.org/10.1139/cjfas-2018-0255 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
76 |
container_issue |
9 |
container_start_page |
1528 |
op_container_end_page |
1540 |
_version_ |
1779318345194012672 |