Last edited by Mazurg
Saturday, August 8, 2020 | History

2 edition of Use of electric fish diversion weirs at Northwest salmon-cultural stations found in the catalog.

Use of electric fish diversion weirs at Northwest salmon-cultural stations

United States. Bureau of Sport Fisheries and Wildlife.

Use of electric fish diversion weirs at Northwest salmon-cultural stations

by United States. Bureau of Sport Fisheries and Wildlife.

  • 114 Want to read
  • 13 Currently reading

Published by Bureau of Sport Fisheries and Wildlife in Portland, Ore .
Written in English

    Subjects:
  • Weirs.

  • Edition Notes

    StatementUnited States, Department of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife, Region I (Pacific).
    The Physical Object
    Paginationiii, 31 p. :
    Number of Pages31
    ID Numbers
    Open LibraryOL14190586M


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Use of electric fish diversion weirs at Northwest salmon-cultural stations by United States. Bureau of Sport Fisheries and Wildlife. Download PDF EPUB FB2

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He caught 62 salmon inand in He thinks that the removal of obstructions to the passage of fish to their spawning-grounds would be all that is necessary to secure a good run of fish in the river, but believes that under present conditions the salmon-cultural work of the Government is very useful in sustaining the fishery.

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O Scribd é o maior site social de leitura e publicação do mundo. The required increase in food to maintain this higher fish density can be achieved in several ways: increasing the product- ion of natural food through the use of chemical and organic fertili- zer, in our case waste effluent; better utilization of existing nat- ural foods through polyculture, i.e., the introduction of carefully selected species.