reference : Climate vulnerability and resilience in the most valuable North American fishery

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/reference/fda5d878-d7b2-48d9-a2c4-bb0721262ce5
Bibliographic fields
reftype Journal Article
Abstract Climate change is impacting global fisheries and societies that depend on them. Identifying climate adaptation measures requires understanding how environmental changes and management policies interact in driving fishery productivity. Coincident with the recent exceptional warming of the northwest Atlantic Ocean, the American lobster has become the most valuable fishery resource in North America. Here we show that interactions between warming waters, ecosystem changes, and differences in conservation efforts led to the simultaneous collapse of lobster fishery in southern New England and record-breaking landings in the Gulf of Maine. Our results demonstrate that sound, widely adopted fishery conservation measures based on fundamental biological principles can help capitalize on gains and mitigate losses caused by global climate change.Managing natural resources in an era of increasing climate impacts requires accounting for the synergistic effects of climate, ecosystem changes, and harvesting on resource productivity. Coincident with recent exceptional warming of the northwest Atlantic Ocean and removal of large predatory fish, the American lobster has become the most valuable fishery resource in North America. Using a model that links ocean temperature, predator density, and fishing to population productivity, we show that harvester-driven conservation efforts to protect large lobsters prepared the Gulf of Maine lobster fishery to capitalize on favorable ecosystem conditions, resulting in the record-breaking landings recently observed in the region. In contrast, in the warmer southern New England region, the absence of similar conservation efforts precipitated warming-induced recruitment failure that led to the collapse of the fishery. Population projections under expected warming suggest that the American lobster fishery is vulnerable to future temperature increases, but continued efforts to preserve the stock's reproductive potential can dampen the negative impacts of warming. This study demonstrates that, even though global climate change is severely impacting marine ecosystems, widely adopted, proactive conservation measures can increase the resilience of commercial fisheries to climate change.
Author Le Bris, Arnault; Mills, Katherine E.; Wahle, Richard A.; Chen, Yong; Alexander, Michael A.; Allyn, Andrew J.; Schuetz, Justin G.; Scott, James D.; Pershing, Andrew J.
DOI 10.1073/pnas.1711122115
Issue 8
Journal Proceedings of the National Academy of Sciences of the United States of America
Pages 1831-1836
Title Climate vulnerability and resilience in the most valuable North American fishery
Volume 115
Year 2018
Bibliographic identifiers
_record_number 25507
_uuid fda5d878-d7b2-48d9-a2c4-bb0721262ce5