SUMMARY
The assessment of North Atlantic bluefin tuna has been based on the assumption that two separate populations of bluefin tuna exist in the North Atlantic, one on the west and another on the east part of the Atlantic (including the Mediterranean Sea), and that the mixing of the two populations is limi...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.476.8068 2023-05-15T17:28:32+02:00 SUMMARY P. Apostolaki E. A. Babcock M. K. Mcallister The Pennsylvania State University CiteSeerX Archives 1055 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.476.8068 http://www.iccat.int/Documents/CVSP/CV055_2003/no_3/CV055031055.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.476.8068 http://www.iccat.int/Documents/CVSP/CV055_2003/no_3/CV055031055.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.iccat.int/Documents/CVSP/CV055_2003/no_3/CV055031055.pdf text 1055 ftciteseerx 2016-01-08T07:38:30Z The assessment of North Atlantic bluefin tuna has been based on the assumption that two separate populations of bluefin tuna exist in the North Atlantic, one on the west and another on the east part of the Atlantic (including the Mediterranean Sea), and that the mixing of the two populations is limited. Management measures have been adopted on the basis that the management regime imposed in the western Atlantic does not affect the population of bluefin tuna in the eastern Atlantic and vice versa. Recent tagging data suggest that the migratory patterns of fish from the two populations are much more complex and extensive than it was previously believed. If the degree of mixing of the two stocks is greater than the 1-2 % which is currently assumed, then the recovery of the depleted western stock might not be possible under the existing management regime. A multi-area, fleet-disaggregated, age-structured population dynamics model is used to test this hypothesis and evaluate the effectiveness of existing and alternative management measures under different mixing scenarios. The model simulates the dynamics of the two bluefin tuna stocks in the North Atlantic and of the fisheries that target them and explicitly models the trans-Atlantic migration of the fish. RÉSUMÉ Text North Atlantic Unknown |
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The assessment of North Atlantic bluefin tuna has been based on the assumption that two separate populations of bluefin tuna exist in the North Atlantic, one on the west and another on the east part of the Atlantic (including the Mediterranean Sea), and that the mixing of the two populations is limited. Management measures have been adopted on the basis that the management regime imposed in the western Atlantic does not affect the population of bluefin tuna in the eastern Atlantic and vice versa. Recent tagging data suggest that the migratory patterns of fish from the two populations are much more complex and extensive than it was previously believed. If the degree of mixing of the two stocks is greater than the 1-2 % which is currently assumed, then the recovery of the depleted western stock might not be possible under the existing management regime. A multi-area, fleet-disaggregated, age-structured population dynamics model is used to test this hypothesis and evaluate the effectiveness of existing and alternative management measures under different mixing scenarios. The model simulates the dynamics of the two bluefin tuna stocks in the North Atlantic and of the fisheries that target them and explicitly models the trans-Atlantic migration of the fish. RÉSUMÉ |
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The Pennsylvania State University CiteSeerX Archives |
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P. Apostolaki E. A. Babcock M. K. Mcallister |
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P. Apostolaki E. A. Babcock M. K. Mcallister SUMMARY |
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P. Apostolaki E. A. Babcock M. K. Mcallister |
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P. Apostolaki |
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1055 |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.476.8068 http://www.iccat.int/Documents/CVSP/CV055_2003/no_3/CV055031055.pdf |
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North Atlantic |
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North Atlantic |
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http://www.iccat.int/Documents/CVSP/CV055_2003/no_3/CV055031055.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.476.8068 http://www.iccat.int/Documents/CVSP/CV055_2003/no_3/CV055031055.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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