6004

• UCREFRP Catalog Number: 6004
• Author: Wick, E. J., J. A. Hawkins and C. A. Carlson.
• Title: Colorado Squawfish Population and Habitat Monitoring.
• USFW Year: 1986.
• USFW - Doc Type: SE3-8,
• Copyright Material: NO

Table 2. (cont) Colorado squawfish collections by CDOW on the Yampa River, 1985.
TAG SEX TL WT HAB SUB DEP VEL GEAR RMI DATE SEX
(mm) (gr) (ft) (fps) TUB. PROD.
-------------------------------------------------------- ------ ------ ------- ----------
3668Y F? 639 2300 MCRU RUGR - - TE 9.5 7-11 Y N
3689Y 1 456 700 MCRU RU 8.0 - TB 8.7 7-il N N
3690Y I 493 780 MCED RUBO 4.0 0.0 EL 91.2 7-15 N N
3691Y F? 721 3500 MCED BO 12.0 0.0 AN 90.6 7-15 N N
3692Y 1 485 815 MCSH BOSA 4.0 - EL 90.6 7-15 N N
3693Y M 529 1000 MCED SASI 5.0 0.1 TB 19.4 7-19 Y M
3694Y M 615 2000 MCRU RUGR - - TE 9.4 7-21 Y M
3695Y F? 637 1955 MCED SARU 6.0 0.0 TB 18.0 7-20 Y N
3696Y I 542 1000 MCRU SARU - - TE 17.8 7-20 N N
3697Y 1 555 1250 MCPO SA 6.0 0.1 AN 79.2 9-22
3698Y I 534 1200 MCPO SA 7.0 0.1 EL 79.1 9-22
3699Y I 570 1300 MCPO SA 5.0 0.0 AN 64.3 10-5
recaptured ////G MCED BO 12.0 0.0 AN 90.6 7-15
4 FISH TSBA SI 3.0 0.0 EL 103.4 5-26
MCED SA 3.5 - EL 73.0 7-15
KEY to Endangered fish collections.
TAG: Tag number (4 digits) followed by tag color.
SEX: M= Male
F= Female
F?= Possible female based tuberculation pattern and vent condition
1= Indeterminant
TL: Total Length (mm)
WT: Weight (grams)
HAB: Habitat (primary and specific) of capture
primary: MC= Main Channel specific: P0= Pool
SC= Side Channel BA= Back water
TS= Tributary Stream RU= Run
ED= Eddy
10 SH= Shor eline
SUB: Substrate of capture site
S1= Silt
SA= Sand
GR= Gravel
BO= Boulder
DEP: Maximum depth (feet) at capture site (not necessari ly where
the fish was in the water column).
VEL: Velocity (feet per second) at capture site.
GEAR: AN= Angling
EL= Electrofishing
TB= Trammel Net (1 inch inner mesh)
TE= Trammel Net Float Set (used Seine like)
TT= Trammel Block Net
RMI: River Mile of capture site (upstream from the
confluence with the Green River)
TUB: Tuberculation present on fish [Yes (Y) or No (N)]
SEX PROD.: Sexual products present
N= None
M= Milt
E= Eggs
Recapture indicates fish already with tag
Observed fish are those with //// at tag number
* This observed fish was identified at close range (4 f eet),
was approximately 450 mm TL, but broke line before bein g netted.