Journal
BULLETIN OF MARINE SCIENCE
Volume 93, Issue 1, Pages 13-33Publisher
ROSENSTIEL SCH MAR ATMOS SCI
DOI: 10.5343/bms.2016.1006
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Funding
- National Science Foundation Program in Coupled Natural and Human Systems [0909449]
- Maine Sea Grant
- Pew Fellows in Marine Conservation
- CREO (Conservation, Research and Education Opportunities)
- SUBPESCA grants
- Directorate For Geosciences [0909449] Funding Source: National Science Foundation
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Overexploitation plagues common property marine resources in a seemingly endless replay of the tragedy of the commons. Territorial use rights in fisheries (TURFs) counter this by controlling access and reducing incentives to compete for larger shares of the resource. Two lobster TURF systems evolved convergently in Maine, USA, and Juan Fernandez Islands, Chile. The Homarus aniericanus H. Milne-Edwards, 1837 lobster fishery in Maine has informal group territories, whereas the Jasus frontalis (H. Milne-Edwards, 1837) fishery in the Juan Fernandez Islands has individually-owned fishing spots called marcas. Both fisheries use small day boats, both have a long history of protecting reproductive and juvenile lobsters, and both evolved informal fishing territories. Although TURFs limited new entrants in both cases, fishing effort grew, prompting both fisheries to support formal limited-entry regulations. Both lobster populations have expanded in recent decades. Maine's 30-yr increase in lobster landings stimulated fishers to use larger boats with increased fishing capacity and range to exploit offshore lobsters that have been increasing in abundance, but where territorial rights do not exist. Nevertheless, trap limits have led to more equitable access. In Juan Fernandez, power winches increased trap-hauling rates, leading some fishers to advocate trap limits. The TURF system of marcas appears to have limited effort, but it has not prevented the accumulation of marcas by individuals. We conclude these TURFs have addressed the problem of exclusion and have growing lobster populations. It is unknown if TURFs can respond effectively to external factors, such as climate change, that may lead to declining populations.
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