7342

• UCREFRP Catalog Number: 7342
• Author: Valentine, J. J.
• Title: Colorado River Endangered Fish Hatchery Feasibility Study.
• USFW Year: 1983.
• USFW - Doc Type: Salt Lake City, Utah.
• Copyright Material: NO

.
Table 3. Production of rare and endangered fish at Dexter NFH 1977-1986 (from Spear memo 3/4/83f) :
Surface Acres Water Used/Needed Species !"Fingerling
Year Pond Available of Water (Acre ft.) Held Production 2/
1977 15 12 1407 9
1978 15 .iL2 1793 13
1979 15 12 1250 14
1980 15 12 1286 16
1981 35 15 1387 19
1982 35 15 1486 15 82,000
1983 35 15 1675 lJJ 200,000
4s!/ . 500 oorf!J
1984 17 2200 16
,
1985 6o?:./ 21 2411 18 600 OO~/
,
1986 60 21 2800 19 800 , oo~j

!/projects _ 9 additional ponds made available (2 large ponds divided) in 1983 (projected cost - $320,000).

!/projects - 15 additional ponds made available (3 iarge ponds divided) in 1984 (projected cost - $700,000).
3/
- Desert pupfish will be at hatchery soon.

~/Present requests 300~000 squaw~ish, 100,000
llpresent requests 400,000 squawfish, 100,000
6/Present requests 600,000 squawfish, 100,000
71
- Rearing
To hold

chubs,

100~000
100,000
100,000

razorback suckers.

bony tail
bony tail
bony tail

chubs~

razorback suckers.

chubs,

razorback suckers.

capacity at Dexter based on the following data:
fish species: 6 acre-feet/month/species=72 acre feet/year/species

To produce fingerlings: 35 acre-feet/month/lOO,OOO fingerlings

a) razorback sucker (8 months)=280 acre feet/season/100,000 5-6" fingerlings
b) bony tail chub (5 months)=175 acre feet/season/lOO,OOO 4-5" fingerlings
c) Colorado squawfish (4 months)=140 acre feet/season/lOO,OOO 2-3" fingerlings
To produce fry Water use incorporated above; no additional water required if fingerling production occurs as outlined above