7059

• UCREFRP Catalog Number: 7059
• Author: Binns, N. A.
• Title: Effects of Rotenone Treatment on the Fauna of the Green River, Wyoming.
• USFW Year: 1967.
• USFW - Doc Type: Fisheries Research Bulletin Number 1,
• Copyright Material: NO

back suckers [Xyrauchen texanus 1 Abbott 1 ], channel catfish [lctalurus puncta-
tus (Rafinesque) and black bullheads [Ictalurus melas (Rafinesque) ] did not
reappear after treatment apparently because the only source of recruitment was
below Flaming Gorge Dam. Small bonytail chubs [Gila robust¢ (Baird and
Girardl] reappeared in parts of the treated area in the second surzrmer, prob-
ably from parts of-the drainage above the treated area.
Large numbers of rainbow trout I Salmo gairdraeri Richardson) were
planted in the treated area six months after treatment and are now supporting
a successful trout fishery.
Rotenone concentrations were determined during the treatment using bio-
assay techniques and a colorimetric method. Bioassays appeared to give the
most accurate results.