Economic Values of Sport Fishing for Anadromous Fishes PDF Download
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Author:
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 46
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Book Description
Author:
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 46
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Book Description
Author: Oregon. Legislative Assembly. Interim Committee to Make a Study of the Economic Values of Anadromous Fishes in the Rivers of the State of Oregon
Publisher:
ISBN:
Category : Anadromous fishes
Languages : en
Pages : 40
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Book Description
Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 334
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Book Description
Author:
Publisher:
ISBN:
Category : Anadromous fishes
Languages : en
Pages : 52
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Book Description
Author: James D. Hastie
Publisher:
ISBN:
Category : Anadromous fishes
Languages : en
Pages : 298
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Book Description
Anadromous fish populations in the Pacific Northwest have undergone substantial change throughout the past century. Historical periods of over-harvest and the construction of numerous dams throughout the region have contributed to declines in the runs of naturally spawning stocks. Management efforts to rebuild fish populations have focused on the restriction of harvest activities and the release of hatchery-reared salmon. A microcomputer simulation model is developed to estimate the economic impacts of management alternatives. In it, fish are passed throughout a network of nodes, according to parameters governing mortality and harvest. These parameters, and the node structure itself, are provided to the model by a user-specified input file. As a result, the model affords flexibility in meeting the modeling needs of differing salmonid stocks. The model's economic assessment capabilities are demonstrated through a case study of Rogue River spring chinook. Results of this exercise include estimates for the impacts of dam construction, hatchery releases, and changes in ocean and river harvest policies on the social value derived from harvest activities. The research also examines the redistribution of economic benefits associated with these policies. The impact of a recently constructed dam upon spring chinook fishermen is estimated at a loss of more than $10,600,000 over thirty years, given no hatchery supplementation. Current hatchery programs have mitigated the loss to fishermen, but whether they also offset their operating costs depends upon the particular harvest values employed. The value of providing an additional wild spawner to the basin is estimated to be roughly $300. Examination of various harvest alternatives indicates that restrictions placed on the commercial ocean fishery would be more successful in increasing the present value of harvests than would similar restrictions in the sport fishery. An important factor in this outcome is the higher value attributed to sport catch by currently accepted methods of valuation. Suggestions are made for improvements to the simulation model and the availability of information for use with it. Foremost among these is the need for improved specification of the marginal social value derived from salmon harvested in commercial and recreational fisheries.
Author: Lisa Tripp
Publisher:
ISBN:
Category : Fishery resources
Languages : en
Pages : 194
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Book Description
Author: United States. Bureau of Sport Fisheries and Wildlife
Publisher:
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Category : Anadromous fishes
Languages : en
Pages : 36
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Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 54
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Author: United States. Congress. House. Merchant Marine and Fisheries
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ISBN:
Category :
Languages : en
Pages : 120
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Author: Jack Arthur Richards
Publisher:
ISBN:
Category : Anadromous fishes
Languages : en
Pages : 548
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Book Description
It is important to avoid misallocation of resources for either private or public production. Misallocation in public programs can result from failure to employ resources in h:igh priority uses or to eliminate programs that have become obsolete. This study evaluates the benefits and costs of the continuing public program aimed at maintaining Columbia River anadromous fish runs. The hydroelectric power potential of the Columbia River exceeds that of all other United States river basins. Irrigation, flood control, navigation and recreation are other important products that are often complementary with dam construction. Anadromous fish, however, compete with products requiring construction of dams that blockade essential fish migration routes. Costly passage facilities at the dams prevent total blockage of the lower river and supplemental projects such as fish hatcheries at least partially replace lost productivity. Benefits from the available supply of Columbia River anadromous fish result from commercial, sport and Indian fishing. These benefits cannot be directly measured through market prices, however, and thus must be estimated. The cost of regulated inefficiency was used to estimate net benefits from commercially-caught fish. Regulated inefficiency results from management policies that equate physical supply capability with market demand through regulated increases in fishing costs. Transfer costs were used as a proxy for nonexistent market prices to estimate the value of sport-caught fish, Revenue maximization using this estimating method implies that some sport fishermen will be excluded, Thus, an assumed transfer from sport to commercial catch was also taken into account. Past, present and future program costs and associated benefits indicate that the effort to preserve Columbia River anadromous fish probably could not have been justified by economic criteria in the l930's when major costs first began. However, the share of this program remaining in 1965 could be justified on economic grounds if traditional capital costs were used and where alternative investment possibilities were not considered.
