WSP01579

• File Number: 8240.200.10.B
• Description: UCRBRIP Annual Report
• Basin: Colorado Mainstem
• Date: 12/22/1997
• Author: UCRBRIP
• Title: 1997 Annual Reports Package Part 2
• Water Supply Pro - Doc Type: Publication

Table 1. 1997 Fish Sampling in the Duchesne River, through 29 September
Type of sample Gear Date River reach Sample description n
Adult life stage
Pre post peak flow EL-boat 5/21-5/28 U,M,L 0.5 h sample 16
EL-raft 6/03-6/05 U,M,L 0.5 h sample 20
IlL-nUl 6/10-6/12 U,M,L 0.5 h sample 20
a-raft 6/17-6/20 U,M,L 0.5 h sample 23
FN 6/17-6/19 L Fyke net sets 12
TN 6/10 L Trammel net 3
Base flow EL-wade 8/06 Myton 0.5 h sample 8
EL-wade 8/07 Uinta 0.5 h sample 7
EL-boat 8/08 Ouray 0.5 h sample 3
IlL-wade 9/02 Myton 0.5 h sample 6
IlL-wade 9/03 Uinta 0.5 h sample I
EL-boat 9/04 Ouray 0.5 h sample 4
EL-raft 9/24 Myton 0.25 h sample 5
a-raft 9/25 Uinta 0.25 h sample 5
IlL-boat 10/2 Ouray 0.25 h sample 4
Early life stage
Larval Lite trap 6/05-7/31 L Over night set 95
Driftnets 6/05-7/31 L 2 h sample 48
Post-larval Seine 8/12 Myton Num sites
Seine 8113 Uinta Num sites
Seine 8/14 Ouray Num sites
Total 49
Seine 8/26 Myton Num sites
Seine 8/27 Uinta Num sites
Seine 8/28 Ouray Num sites
Total 62
Seine 9/09 Myton Num sites
Seine 9/10 Uinta Num sites
Seine 9/11 Ouray Num sites
Total 53

Telemetry
Radio tagging
Adult capture effort 5/21-6/20, e1ectrofishing, fyke netting, trammel netting in Upper,
Middle, and Lower reaches
Aerial surveys: 13 flights between 6/19 and 9/23
Duchesne R between confluence (Green R.) and Myton and the Green R. between Split
Mountain and Three Fords
Habitat: 24 h ground tracking (contacts every two hours); 8/14-15 and 8/19-20

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