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Equilibrium yield and management of cutthroat trout in Yellowstone Lake,

Author: Norman Gustaf Benson; Ross V Bulkley; HathiTrust.
Publisher: [Washington], [United States Fish and Wildlife Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off.], [1963]
Series: Research report (United States. Bureau of Sport Fisheries and Wildlife), 62.
Edition/Format:   Print book : National government publication : EnglishView all editions and formats
Database:WorldCat
Summary:
Equilibrium yield of the cutthroat trout, Salmo clarki lewisi Girard, in Yellowstone Lake, Wyo., is determined from data on catch and spawning runs from 1945 to 1961. Changes in growth rate, spawning runs, mortality rates, and year-class strength are related to differences in total catch. Three stages of exploitation of the stock are defined and the maximum safe catch or equilibrium yield is estimated at 325,000  Read more...
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Additional Physical Format: Online version:
Benson, Norman Gustaf, 1923-.
Equilibrium yield and management of cutthroat trout in Yellowstone Lake.
[Washington, United States Fish and Wildlife Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1963]
(OCoLC)795026237
Material Type: Government publication, National government publication, Internet resource
Document Type: Book, Internet Resource
All Authors / Contributors: Norman Gustaf Benson; Ross V Bulkley; HathiTrust.
OCLC Number: 4
Description: iv, 44 pages illustrations, map 26 cm.
Contents: Introduction --
Yellowstone Lake fishery --
Yellowstone River fishery --
Summary --
Literature cited --
Appendix A, Distribution of fishing --
Appendix B, Maturity of fish in catch --
Appendix C, Growth increments --
Appendix D, Year-class strength --
Appendix E, Catch curves.
Series Title: Research report (United States. Bureau of Sport Fisheries and Wildlife), 62.
Responsibility: by Norman G. Benson and Ross V. Bulkley.

Abstract:

Equilibrium yield of the cutthroat trout, Salmo clarki lewisi Girard, in Yellowstone Lake, Wyo., is determined from data on catch and spawning runs from 1945 to 1961. Changes in growth rate, spawning runs, mortality rates, and year-class strength are related to differences in total catch. Three stages of exploitation of the stock are defined and the maximum safe catch or equilibrium yield is estimated at 325,000 trout. Management of the sport fishery according to equilibrium yield is discussed with reference to regulations, distribution of fishing pressure, planting, and interspecific competition. The Yellowstone River fishery is treated briefly.

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