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IMPLICATIONS OF HISTORICAL CHANGES IN FIXED FISHING GEAR FOR LARGE WHALE ENTANGLEMENTS IN THE NORTHWEST ATLANTIC

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Date
2003
Author
Kozuck, Amanda
Advisor
Read, Andy
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Abstract
North Atlantic right whales (Eubalaena glacialis) are one of the most critically endangered large whales in the world, with an estimate of 300 animals remaining. Despite international protection from whaling since 1935 and an endangered status listing under the United States Endangered Species Act, this population has been in decline since the 1990s. Factors hindering recovery include entanglements in fishing gear and ship collisions. Today, lobster pots and gillnets are most commonly implicated in large whale entanglements, especially those of right and humpback (Megaptera novaeangliae) whales. However, other fixed fishing gear presents entanglement risk to large whales, such as crab pots and slime eel gear. Entanglements typically occur when whales come into contact with lines attached to the gear; any body part can be involved. I present historical data tracking changes in fishing line and fixed fishing gear, as well as changes in fishing practices, from the mid-1940s to the present in the Northwest Atlantic. The introduction of synthetic materials to the fishing industry in the 1950s, coupled with government subsidies and legislation for domestic fishery expansion, led to dramatic increases in fishing effort and efficiency. These attempts to promote the development of the U.S. fishing industry have created entanglement risk for large whales. In 2002, eight right and eleven humpback whale entanglements were documented; two deaths resulted, one of each species. This suggests that existing protective measures are inadequate. I briefly examine current regulations and provide suggestions for further measures to reduce the conflict between large whales and fixed gear fisheries.
Type
Master's project
Department
Nicholas School of the Environment and Earth Sciences
Subject
North Atlantic right whales (Eubalaena glacialis)
Endangered Species Act (ESA)
Humpback whales (Megaptera novaeangliae)
Fixed Fishing Gear
Northwest Atlantic
U.S. fishing industry
Permalink
https://hdl.handle.net/10161/265
Citation
Kozuck, Amanda (2003). IMPLICATIONS OF HISTORICAL CHANGES IN FIXED FISHING GEAR FOR LARGE WHALE ENTANGLEMENTS IN THE NORTHWEST ATLANTIC. Master's project, Duke University. Retrieved from https://hdl.handle.net/10161/265.
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This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.

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