Details:

Personal Author:
Johnsen, Richard C.
Corporate Authors:
United States. Army. Corps of Engineers. Portland District ; Northwest Fisheries Science Center (U.S.). Coastal Zone and Estuarine Studies Division
United States. Army. Corps of Engineers. Portland District ; Northwest Fisheries Science Center (U.S.). Coastal Zone and Estuarine Studies Division Less -
NOAA Program & Office:
NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center)
NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center) Less -
Description:
Low flows and little or no spill predicted for the Columbia River in the spring and summer of 1977, coupled with the ineffectiveness of the bypass system, caused concern among the fishery agencies for passage of salmonid fingerlings at John Day Dam. In response to this concern, the NMFS, under contract to the U. S. Army Corps of Engineers, carried out a salvage dipnet operation at John Day Dam. The objective was to provide sufficient dipnetting effort to prevent a large accumulation and mortality of spring migrants in the gatewells.
Keywords:
[+]
Conservation Effect Of Dams On Fishes Salmonidae
Series:
Coastal zone and estuarine studies
Format:
PDF
Document Type:
Non-series Report
Place as Subject:
Columbia River
License:
https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:
CC0 Public Domain
Compliance:
Library
Main Document Checksum:
[+]
urn:sha256:2f11c75b5b86f834e99b595b1dbb293846232109db0b5dd85450c73812eadfa7
Download URL:
https://repository.library.noaa.gov/view/noaa/50283/noaa_50283_DS1.pdf
File Type:

Supporting Files

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