8057

• UCREFRP Catalog Number: 8057
• Author: Bennett, J. R., D. A. Krieger, T. P. Nesler, L. E. Harris and R. B. Nehring.
• Title: An Assessment Of Fishery Management And Fish Production Alternatives To Reduce The Impact Of Whirling Disease In Colorado.
• USFW Year: 1996.
• USFW - Doc Type: Denver, Colorado.
• Copyright Material: NO

Rifle Falls Hatchery
Location: The hatchery is situated 18 miles northeast of Rifle on Rifle Creek in Garfield County.
Physical Structure: Hatchery contains 36 basins and 11 incubators. Thirty-two nurse basins are
located outside along with 40 raceway sections. A set of lower raceways along with 11
earthen ponds are no longer used because of a unique disease problem (Type C botulism).
Water Source: Surface water (east Rifle Creek) average flow of 38.4 cfs; spring collection line
10.8 cfs,
Number of Personnel: 11.75 permanent FTE's. The supervisor is also responsible for both Rifle
Falls and Finger Rock.
Species Reared: Rainbow trout, Snake River cutthroat, Colorado River cutthroat, brown trout,
kokanee, and Mackinaw
Three Year Production Average: 677,000 catchables with an average size of 10.14 inches and
1.3 million subcatchables with an average of size 4.04 inches
Operating Costs: $772,071
Operating Cost per Inch Planted: $0.046
Fish Health History: 1975 - ERM; 1978 - IPNV, 1984 - Bacterial coldwater disease and Costia;
1985 - Columnaris; 1986 - Type C botulism and Gyrodactylus; 1990 - Gill amoeba; 1994 -
whirling disease
Current Health Status: Whirling disease positive
Roaring Judy Hatchery
Location: The hatchery is located 4 miles north of Almont adjacent to the East River in Gunnison
County.
Physical Structure: hatchery building contains 26 hatchery troughs, 22 basins, and 22
incubators. The outside facility is composed of 36 nurse basin (some are covered with bird
netting); 10,800 feet of raceway space, and 6 earthen rearing ponds.
Water Source: surface water (East River) 46 cfs adjudicated. Springs, seep and wells total 53
cfs adjudicated.
Number of Personnel: Nine permanent FTE's and 6 months of temporary time
Species Reared: rainbow trout, brook trout, Emerald Lake cutthroat, Pike's Peak cutthroat,
Snake River cutthroat, kokanee (spawn taking and rearing); and Mackinaw
Three Year Production Average: 405,000 catchables with an average size of 10.61 inches and
1.9 million subcatchables with an average size of 2.19 inches (NOTE: the unit also spawns
wild kokanee running up the East River)
Operating Costs: $500,346
Operating Cost per Inch Planted: $0.059
Fish Health History: 1979 - ERM; 1981 - Furunculosis; 1985 - Columnaris, "Ich", and Costia;
1986 - Epistylis, Gyrodactylus, Trichodina and Bacterial Coldwater disease; 1987 -
Strawberry disease; 1988 - Whirling disease; 1990 - Nodular gill disease
Current Health Status: Whirling disease positive
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