期刊
FISH AND FISHERIES
卷 18, 期 6, 页码 1150-1160出版社
WILEY
DOI: 10.1111/faf.12230
关键词
habitat; predation; rational expectations; recreational fishery; resilience; sustainability
类别
资金
- U.S. Geological Survey [G11AC20456, G16AC00222]
- University of Wisconsin-Madison
- University of Wisconsin-Stevens Point
- Hilldale Fund of UW-Madison
The Safe Operating Space (SOS) of a recreational fishery is the multidimensional region defined by levels of harvest, angler effort, habitat, predation and other factors in which the fishery is sustainable into the future. SOS boundaries exhibit trade-offs such that decreases in harvest can compensate to some degree for losses of habitat, increases in predation and increasing value of fishing time to anglers. Conversely, high levels of harvest can be sustained if habitat is intact, predation is low, and value of fishing effort is moderate. The SOS approach recognizes limits in several dimensions: at overly high levels of harvest, habitat loss, predation, or value of fishing effort, the stock falls to a low equilibrium biomass. Recreational fisheries managers can influence harvest and perhaps predation, but they must cope with trends that are beyond their control such as changes in climate, loss of aquatic habitat or social factors that affect the value of fishing effort for anglers. The SOS illustrates opportunities to manage harvest or predation to maintain quality fisheries in the presence of trends in climate, social preferences or other factors that are not manageable.
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