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
| Autor: | Gisele Magnusson, Kathryn D. Bisack |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Opportunity cost
bio-eoconomic tradeoffs Science Fishing Population Ocean Engineering Aquatic Science bycatch marine mammal QH1-199.5 Oceanography mitigation Marine mammal biology.animal education Water Science and Technology Global and Planetary Change education.field_of_study biology policy instruments Whale business.industry Public sector General. Including nature conservation geographical distribution biology.organism_classification Fishery Bycatch Dynamic Area Management Business Right whale |
| Zdroj: | Frontiers in Marine Science, Vol 8 (2021) |
| ISSN: | 2296-7745 |
| DOI: | 10.3389/fmars.2021.540966/full |
| Popis: | 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 ( |
| Databáze: | OpenAIRE |
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