Table 2 -- Abundance estimates for greenback cutthroat trout in recovery waters from 1955 to 1999. Only surveys detecting greenback cutthroat trout are included. We defined qualitative surveys as visual, angling, or one-pass electrofishing counts used to estimate relative abundance, or as samples taken for other purposes (e.g., genetic analyses, but not including creel surveys). Quantitative surveys comprised two- or three-pass depletion or mark-recapture counts in streams and catches per gill-net-hour in lakes. Numbers in parentheses denote the number of quantitative estimates that were reported to exist in additional reaches or years but were unavailable. Sampling intensity is the length (m) of stream sampled or number of nets used in a lake per year. Mean abundance is the estimated number of greenback cutthroat trout per 100 m in streams or per gill-net-hour in lakes for fish greater than 100 mm total length. The few mark-recapture estimates for lakes (Bergersen 1988a,b; Shively 1989b) are not included. Means were obtained by taking an average for all reaches or nets for each year, then calculating a mean for all years. (Standard deviations, SD, are given.) Missing data are denoted by a dashed line.

Water	Qualitative	Quantitative	Sampling intensity (m)	Mean	SD
Arkansas Basin
South Apache Creek	1977,80-84,92	1989,94,95	191	60	34
Lake Fork Arkansas River	1987,89,97	1995(4)	845	16
Boehmer Reservoir	1987,94-97,99	(3)
Cascade Creek (1)	1976,78,80,81,96,99	1994(8)	78	19
Cascade Creek (2)		1995(1)	165	10
Cottonwood Creek	1984,89,95,96,99
Duck Pond	1987
Dutch Creek	1978
Elk Creek		1995(1)	130	20
Greenhorn Creek	1997	1992,94,95(3)	274	33	16
South Prong Hayden Creek	1996,99
South Fork Huerfano River	1963,76,78
Lytle Pond	1982-88
McAlpine Lake	1981-85
Native Lake	1991,92	1991-93,95	1	5	5
Newlin Creek	1998
Rainbow Lake		1991-93,95	1	5	1
Rock Creek	1992,99	1993,95(3)	330-350	15	3
East Branch Sayres Gulch		1998	---	6
Severy Creek	1997	(1)
Swamp Lakes		1993,94	2-3	7	9
Timberline Lake		1989,95	1-2	2	2
Virginia Lake		1989,95	1	1	1
South Platte Basin
Albion Creek	1955,57,63,64,69
Bard Creek	1983	1985,94,99(3)	100-275	33	17
Bear Lake	1977-82,84-89
Black Hollow Creek	1963,64,66,67,71,72,78,79,82,83,96	1985-89,99(1)	91-261	21	9
Bruno Gulch	1991	(1)
Caddis Lake	1972	1979,88,99	1	12	5
Como Creek	1969,70,73,75,77-80,82-89	1982,85,91,95,99	201-425	30	4
Cony Creek	1996,98
Cornelius Creek	1984	1985-89,99	91-675	11	5
Crystal Lake	1991-93	1986,88,91-93,98	1-2	1	2
Dream Lake		1998,99	2	9	5
Fern Creek	1985,96	1988,91	45-91	33	11
Fern Lake	1993,98	1984,85,87,90-93	1	7	6
George Creek	1984	1985-89,99	91-750	30	11
Hidden Valley Creek	1974-86,88-90,95,97-99
Hourglass Creek	1969,81,82	1984	100	7
Hunters Creek	1985-89,92,93,97	1988,99	183-450	32	6
Husted Lake	1998	1993,98	1-2	21	2
Lower Hutcheson Lake	1989,91,97	1989,91,98	1	7	5
Middle Hutcheson Lake	1987	1981,86,87,98	1-2	3	6
Upper Hutcheson Lake	1986,96,97	1963,81,86,90,98	1	18	18
Lake Louise		1993,98	1	16	10
Lawn Lake	1986,89,91-93	1986-89,91,92,96	1-2	10	6
Loomis Lake	1998	1993,95	1	16	4
Lost Lake	1993	1989,90,93,98	1	14	16
May Creek	1982,83,96	1986-89,99(1)	91-450	18	14
Odessa Lake	1986,91-93,98	1987,91-93,98	1-2	5	3
Ouzel Creek	1982-89,91,93,97-99	1998	110	39
Ouzel Lake	1985-89,93,98	1983-89,91,93,98	1-2	20	21
Pear Lake	1989,90	1989,98(1)	1	27	27
Pennock Creek	1987,88	1989,98	88-450	11	11
Little South Fork Poudre River	1965,70,75,78-81,84-86,89,90,92,93	1983,86-89,98,99	91-560	13	9
Roaring Creek	1963,64,77,81,97	1999(1)	825	47
Roaring River	1986,91	1988,89	99-183	23	10
Sandbeach Lake	1990,91,93,98	1989-91,93,98	1	34	45
East Fork Sheep Creek	1983,98	1986-89,99(2)	91-475	30	9
West Fork Sheep Creek	1983,98	1986-89,99(2)	91-575	34	11
Spruce Lake	1993,95,98	1992,93,95	1	19	21
Big Thompson River	1957-59,65,67-69,75,78,80,81,85,99	1980(2)	671	29
North Fork Big Thompson River	1973,78,83,84,89,93,97	1986	---	16
West Creek	1980,83,85-89,98	1999	91	12
Williams Gulch	1982,83,96,97	1985-89,99(1)	100-475	26	12
Zimmerman Lake	1996,97
Zinn Ranch Ponds	1986,87,89	_	_	_	_

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Title: RMRS-GTR-88WWW: Table 2
Electronic Publish Date: January 22, 2002
Last Update: January 20, 2010

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