8020

• UCREFRP Catalog Number: 8020
• Author: Horak, G. C.
• Title: Proceedings of the Symposium on Mitigating Developmental Impacts on Fish and Wildlife.
• USFW Year: 1979.
• USFW - Doc Type: March 1979.
• Copyright Material: NO

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Barrier dams, fish screens, fish stocking, and fish eradication account
for the' high acceptance rate within the fish stocking and control category.
Aside from aiding the fish resources biologically, each of these measures
has ~irect recreational benefits. Barrier dams prevent rough fish from
competing with certain game fisheries while allowing the movement of andro-
mous fish. Fish screens prohibit fish passage into areas where they wQu1d
inhibit other project operations and incur high mortality. Rough fish
eradication decreased competition, allowing game fish populations to flourish.
Fish stocking directly increases fish populations and fiShery values in streams
and reservoirs. In addition to their obvious biological and recreational im-
portance,these measures are. highly visible and therefore likely to lessen
public opposition to a reservoir project.
Measures within a number of minor categories were found to have accept-
ance rates significantly different from the general study findings. Within
the major category of reservoir conservation pools minimum pool and fluctu-
ation control are associated with a significant deviations from the study averages.
Recommendations for minimum reservoir pool maintenance achieved unusual bargain-
ing success, while those for reservoir pool fluctuation control obtained atypical-
ly poor bargaining success. A minimum pool, if recommended before the design and
construction of a project, can be incorporated into' a project operating plan at
little or no extra cost in excess of additional benefits and will not conflict
with primary project purposes. Reservoi r fl uctuation control is more 1 i kely to
conflict with primary project purposes often unpredictable during either sudden
and intense i rrfgation demand flood control operations, or power peaking opera-
tions. Construction agencies, therefore, are likely to reject this type of
recommendation.
Two types of recommendations within the category of general practices are
associated with an unusual outcome:
. land acquisition
. Reservoir and flood plan zoning