aquatic
catch
cedar
chinook
coho
creek
device
downtstream
equipment
experiment
ferns
fish
jam
larva
log
moss
nature
non destructive
northwest
outmigrants
pacific
release
research
river
rocks
ropes
rotary
rushing
salmon
screw
smots
spring
states
steelhead
stream
suckers
trap
trouts
united
usa
washington
water
waterfall
waterway
wildlife
woodland
定額
Rotary Screw Trap Device Used by United States and Washington State Fish and Wildlife Department Along River to Catch and Release Downstream Outmigrants Fishes for Research at Cedar Creekの素材 [FY31020898654]
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