MPA regulations should incorporate adaptive management—The case of Gilbert Bay Labrador Atlantic cod (Gadus morhua)
Although an important conservation tool, Marine Protected Areas sometimes fall short of intended goals; however, adaptive management can potentially improve their effectiveness. Efforts to develop an MPA in Gilbert Bay, Labrador, Canada, began in 1998 to protect the genetically distinct population o...
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ftrepec:oai:RePEc:eee:marpol:v:49:y:2014:i:c:p:20-28 2024-04-14T08:08:52+00:00 MPA regulations should incorporate adaptive management—The case of Gilbert Bay Labrador Atlantic cod (Gadus morhua) Morris, Corey J. Green, John M. http://www.sciencedirect.com/science/article/pii/S0308597X14000979 unknown http://www.sciencedirect.com/science/article/pii/S0308597X14000979 article ftrepec 2024-03-19T10:27:52Z Although an important conservation tool, Marine Protected Areas sometimes fall short of intended goals; however, adaptive management can potentially improve their effectiveness. Efforts to develop an MPA in Gilbert Bay, Labrador, Canada, began in 1998 to protect the genetically distinct population of Atlantic cod (Gadus morhua) and its habitat. Population monitoring and research conducted in Gilbert Bay during 26 research trips over 14 years have documented significant population declines. The biomass declined by as much as 83% and research catch rates by 54% since Gilbert Bay became a MPA in 2005. Commercial fishing in adjacent waters was strongly correlated (Pearson correlation r=−0.87, p=0.002), with the declining trend in research catch rates. Tag recaptures from the commercial fishery (n=105) confirmed that fishing removed large adult Gilbert Bay cod that seasonally move outside the MPA. Evidence of the production of strong year classes even at low adult population levels indicate that the Gilbert Bay cod population has the potential to increase rapidly under appropriate adaptive management; thus improving MPA effectiveness. A relatively small change in the timing of commercial fishing in waters adjacent to the MPA would likely produce this result; however, inflexible MPA regulations, and poor co-ordination and agreement among differing fishery management processes and stakeholders has delayed the implementation of such a change. MPA; Connectivity; Adaptive management; Long term monitoring; Atlantic cod; Article in Journal/Newspaper atlantic cod Gadus morhua RePEc (Research Papers in Economics) Canada Gilbert Bay ENVELOPE(-55.998,-55.998,52.633,52.633) |
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Open Polar |
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RePEc (Research Papers in Economics) |
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ftrepec |
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unknown |
description |
Although an important conservation tool, Marine Protected Areas sometimes fall short of intended goals; however, adaptive management can potentially improve their effectiveness. Efforts to develop an MPA in Gilbert Bay, Labrador, Canada, began in 1998 to protect the genetically distinct population of Atlantic cod (Gadus morhua) and its habitat. Population monitoring and research conducted in Gilbert Bay during 26 research trips over 14 years have documented significant population declines. The biomass declined by as much as 83% and research catch rates by 54% since Gilbert Bay became a MPA in 2005. Commercial fishing in adjacent waters was strongly correlated (Pearson correlation r=−0.87, p=0.002), with the declining trend in research catch rates. Tag recaptures from the commercial fishery (n=105) confirmed that fishing removed large adult Gilbert Bay cod that seasonally move outside the MPA. Evidence of the production of strong year classes even at low adult population levels indicate that the Gilbert Bay cod population has the potential to increase rapidly under appropriate adaptive management; thus improving MPA effectiveness. A relatively small change in the timing of commercial fishing in waters adjacent to the MPA would likely produce this result; however, inflexible MPA regulations, and poor co-ordination and agreement among differing fishery management processes and stakeholders has delayed the implementation of such a change. MPA; Connectivity; Adaptive management; Long term monitoring; Atlantic cod; |
format |
Article in Journal/Newspaper |
author |
Morris, Corey J. Green, John M. |
spellingShingle |
Morris, Corey J. Green, John M. MPA regulations should incorporate adaptive management—The case of Gilbert Bay Labrador Atlantic cod (Gadus morhua) |
author_facet |
Morris, Corey J. Green, John M. |
author_sort |
Morris, Corey J. |
title |
MPA regulations should incorporate adaptive management—The case of Gilbert Bay Labrador Atlantic cod (Gadus morhua) |
title_short |
MPA regulations should incorporate adaptive management—The case of Gilbert Bay Labrador Atlantic cod (Gadus morhua) |
title_full |
MPA regulations should incorporate adaptive management—The case of Gilbert Bay Labrador Atlantic cod (Gadus morhua) |
title_fullStr |
MPA regulations should incorporate adaptive management—The case of Gilbert Bay Labrador Atlantic cod (Gadus morhua) |
title_full_unstemmed |
MPA regulations should incorporate adaptive management—The case of Gilbert Bay Labrador Atlantic cod (Gadus morhua) |
title_sort |
mpa regulations should incorporate adaptive management—the case of gilbert bay labrador atlantic cod (gadus morhua) |
url |
http://www.sciencedirect.com/science/article/pii/S0308597X14000979 |
long_lat |
ENVELOPE(-55.998,-55.998,52.633,52.633) |
geographic |
Canada Gilbert Bay |
geographic_facet |
Canada Gilbert Bay |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0308597X14000979 |
_version_ |
1796306313166192640 |