Data_Sheet_1_Spatial Management to Reduce Entanglement Risk to North Atlantic Right Whales in Fishing Gear: A Case Study of U.S. Northeast Lobster Fishery 2002–2009.pdf
Despite the use of gear requirements and access restrictions to manage lobster fishery interactions with north Atlantic right whales since 1997, the population is likely below 370 animals. The Dynamic Area Management (DAM) program (2002–2009) used “real-time” right whale sightings data to provide te...
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Online Access: | https://doi.org/10.3389/fmars.2021.540966.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Spatial_Management_to_Reduce_Entanglement_Risk_to_North_Atlantic_Right_Whales_in_Fishing_Gear_A_Case_Study_of_U_S_Northeast_Lobster_Fishery_2002_2009_pdf/16599938 |
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ftfrontimediafig:oai:figshare.com:article/16599938 2023-05-15T17:32:37+02:00 Data_Sheet_1_Spatial Management to Reduce Entanglement Risk to North Atlantic Right Whales in Fishing Gear: A Case Study of U.S. Northeast Lobster Fishery 2002–2009.pdf Kathryn D. Bisack Gisele M. Magnusson 2021-09-10T04:02:56Z https://doi.org/10.3389/fmars.2021.540966.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Spatial_Management_to_Reduce_Entanglement_Risk_to_North_Atlantic_Right_Whales_in_Fishing_Gear_A_Case_Study_of_U_S_Northeast_Lobster_Fishery_2002_2009_pdf/16599938 unknown doi:10.3389/fmars.2021.540966.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Spatial_Management_to_Reduce_Entanglement_Risk_to_North_Atlantic_Right_Whales_in_Fishing_Gear_A_Case_Study_of_U_S_Northeast_Lobster_Fishery_2002_2009_pdf/16599938 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mitigation Dynamic Area Management bio-eoconomic tradeoffs policy instruments bycatch marine mammal cost-effectiveness (economics) compliance Dataset 2021 ftfrontimediafig https://doi.org/10.3389/fmars.2021.540966.s001 2021-09-15T23:01:52Z Despite the use of gear requirements and access restrictions to manage lobster fishery interactions with north Atlantic right whales since 1997, the population is likely below 370 animals. The Dynamic Area Management (DAM) program (2002–2009) used “real-time” right whale sightings data to provide temporary protection using closures or whale-modified-gear to reduce entanglement. Our ex-post evaluation uses a flexible framework to identify strengths and weaknesses of the program. Biological and economic implications of the program are evaluated using a relative risk of entanglement index (RREI) calculated with spatially and temporally explicit data on density of right whales and fishing effort. An illustrative closure optimization model demonstrates the trade-offs between the non-monetary benefits of risk reduction and the opportunity cost of closures under alternative decision rules (benefit-ranking and cost-effectiveness). Annual aerial sampling to detect DAM areas was low (<3%), yet in some months’ the 17% of area covered by all northeast right whale management areas encompassed up to 70% of the region’s population. Despite their small spatial footprint, dynamic and static measures may have reduced total risk by 6.5% on average, and DAM zones may have created an indirect economic incentive for some fishers to adopt the whale-modified-gear. Similar RREI index values in some months with inverse levels of fishing effort and whale presence highlight the need to consider fishing and whales jointly to reduce risk. These temporal-spatial patterns are critical in policy instrument design. Further, optimization results illustrate how different decision rules can attain equivalent non-monetary benefits of risk reduction at different opportunity costs to industry; the implications of whale-modified-gear and compliance factors are explored. We recommend that DAMs be considered as part of a suite of policy instruments, and highlight how recent technological advances may support lower cost data collection and faster ... Dataset North Atlantic Frontiers: Figshare |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mitigation Dynamic Area Management bio-eoconomic tradeoffs policy instruments bycatch marine mammal cost-effectiveness (economics) compliance |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mitigation Dynamic Area Management bio-eoconomic tradeoffs policy instruments bycatch marine mammal cost-effectiveness (economics) compliance Kathryn D. Bisack Gisele M. Magnusson Data_Sheet_1_Spatial Management to Reduce Entanglement Risk to North Atlantic Right Whales in Fishing Gear: A Case Study of U.S. Northeast Lobster Fishery 2002–2009.pdf |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mitigation Dynamic Area Management bio-eoconomic tradeoffs policy instruments bycatch marine mammal cost-effectiveness (economics) compliance |
description |
Despite the use of gear requirements and access restrictions to manage lobster fishery interactions with north Atlantic right whales since 1997, the population is likely below 370 animals. The Dynamic Area Management (DAM) program (2002–2009) used “real-time” right whale sightings data to provide temporary protection using closures or whale-modified-gear to reduce entanglement. Our ex-post evaluation uses a flexible framework to identify strengths and weaknesses of the program. Biological and economic implications of the program are evaluated using a relative risk of entanglement index (RREI) calculated with spatially and temporally explicit data on density of right whales and fishing effort. An illustrative closure optimization model demonstrates the trade-offs between the non-monetary benefits of risk reduction and the opportunity cost of closures under alternative decision rules (benefit-ranking and cost-effectiveness). Annual aerial sampling to detect DAM areas was low (<3%), yet in some months’ the 17% of area covered by all northeast right whale management areas encompassed up to 70% of the region’s population. Despite their small spatial footprint, dynamic and static measures may have reduced total risk by 6.5% on average, and DAM zones may have created an indirect economic incentive for some fishers to adopt the whale-modified-gear. Similar RREI index values in some months with inverse levels of fishing effort and whale presence highlight the need to consider fishing and whales jointly to reduce risk. These temporal-spatial patterns are critical in policy instrument design. Further, optimization results illustrate how different decision rules can attain equivalent non-monetary benefits of risk reduction at different opportunity costs to industry; the implications of whale-modified-gear and compliance factors are explored. We recommend that DAMs be considered as part of a suite of policy instruments, and highlight how recent technological advances may support lower cost data collection and faster ... |
format |
Dataset |
author |
Kathryn D. Bisack Gisele M. Magnusson |
author_facet |
Kathryn D. Bisack Gisele M. Magnusson |
author_sort |
Kathryn D. Bisack |
title |
Data_Sheet_1_Spatial Management to Reduce Entanglement Risk to North Atlantic Right Whales in Fishing Gear: A Case Study of U.S. Northeast Lobster Fishery 2002–2009.pdf |
title_short |
Data_Sheet_1_Spatial Management to Reduce Entanglement Risk to North Atlantic Right Whales in Fishing Gear: A Case Study of U.S. Northeast Lobster Fishery 2002–2009.pdf |
title_full |
Data_Sheet_1_Spatial Management to Reduce Entanglement Risk to North Atlantic Right Whales in Fishing Gear: A Case Study of U.S. Northeast Lobster Fishery 2002–2009.pdf |
title_fullStr |
Data_Sheet_1_Spatial Management to Reduce Entanglement Risk to North Atlantic Right Whales in Fishing Gear: A Case Study of U.S. Northeast Lobster Fishery 2002–2009.pdf |
title_full_unstemmed |
Data_Sheet_1_Spatial Management to Reduce Entanglement Risk to North Atlantic Right Whales in Fishing Gear: A Case Study of U.S. Northeast Lobster Fishery 2002–2009.pdf |
title_sort |
data_sheet_1_spatial management to reduce entanglement risk to north atlantic right whales in fishing gear: a case study of u.s. northeast lobster fishery 2002–2009.pdf |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmars.2021.540966.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Spatial_Management_to_Reduce_Entanglement_Risk_to_North_Atlantic_Right_Whales_in_Fishing_Gear_A_Case_Study_of_U_S_Northeast_Lobster_Fishery_2002_2009_pdf/16599938 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.3389/fmars.2021.540966.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Spatial_Management_to_Reduce_Entanglement_Risk_to_North_Atlantic_Right_Whales_in_Fishing_Gear_A_Case_Study_of_U_S_Northeast_Lobster_Fishery_2002_2009_pdf/16599938 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2021.540966.s001 |
_version_ |
1766130829395755008 |