Changes in the Fish Population of Lewis and Clark Lake, 1956-74, and Their Relation to Water Management and the Environment PDF Download
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Author: Charles H. Walburg
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 44
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Book Description
Water management of the Lewis and Clark Lake for flood control, hydroelectric power, navigation, and other purposes affected fish population levels. Fluctuating water levels in May and June affected fish spawning and survival of young. Suggested management measures may improve sport fish abundance, such as construction of spawning and nursery ponds near the reservoir or maintenance of higher water levels during May and June to enhance the reproduction opportunities for desirable species are either too costly or inconsistent with the primary flood-control function of the reservoir. Fish abundance with the present water management regimen will probably remain similar to that of the early 1970's.
Author: Charles H. Walburg
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 44
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Book Description
Water management of the Lewis and Clark Lake for flood control, hydroelectric power, navigation, and other purposes affected fish population levels. Fluctuating water levels in May and June affected fish spawning and survival of young. Suggested management measures may improve sport fish abundance, such as construction of spawning and nursery ponds near the reservoir or maintenance of higher water levels during May and June to enhance the reproduction opportunities for desirable species are either too costly or inconsistent with the primary flood-control function of the reservoir. Fish abundance with the present water management regimen will probably remain similar to that of the early 1970's.
Author: Charles H. Walburg
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Author: John Clay Bruner
Publisher: Springer Nature
ISBN: 3030806782
Category : Science
Languages : en
Pages : 332
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Book Description
Walleye, one of the most sought-after species of freshwater sport fishes in North America, has demonstrated appreciable declines in their numbers from their original populations since the beginning of the 20th century. Similarly, Yellow Perch, once the most commonly caught sport fish and an important commercial species in North America, have also shown declines. Compiling up-to-date information on the biology and management of Walleye, Sauger, and Yellow Perch, including research on systematics, genetics, physiology, ecology, movement, population dynamics, culture, recent case histories, and management practices, will be of interest to managers, researchers, and students who deal with these important species, particularly in light of habitat alterations, population shifts, and other biotic and abiotic factors related to a changing climate.
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Category :
Languages : en
Pages : 488
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Category :
Languages : en
Pages : 358
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Author: Patrick J. Sousa
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Category : Blue-winged teal
Languages : en
Pages : 48
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Category : Animal ecology
Languages : en
Pages : 294
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Category :
Languages : en
Pages : 702
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Category :
Languages : en
Pages : 730
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Category : Ecology
Languages : en
Pages : 56
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