8185

• UCREFRP Catalog Number: 8185
• Author: Valdez, R. A. and B. R. Cowdell.
• Title: Annual Summary Report-1992\
• USFW Year: 1993.
• Copyright Material: NO

I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I

Table 3. Number of age-O Colorado squawfish, geometric mean CPE, and mean total length for the 1987-
1992 year classes in Reach 3, Green River (RM 120-0t.
SAMPLE NO. SEINE HAULS NO. CPE (#/100m2) MEAN TI.. (mm)
PERIOD (with age-O) Age-O (Std. Dev.)
--1987 YEAR CLASS--
Fall'87 32 (20) 448 8.75 (7.37) 34 (23-55)
Spring '88 48 (18) 150 1.97 (4.90) 43 (30-69)
--1988 YEAR CLASS--
Fall '88 36 (34) 1707 48.40 (5.80) 38 (22-60)
Spring '89 27 (22) 739 18.30 (6.70) 42 (26-70)
--1989 YEAR CLASS--
Fall '89 94 (87) 1527 19.91 (3.87) 37 (21-69)
Spring '90 90 (67) 821 8.82 (5.38) 41 (24-74)
--1990 YEAR CLASS--
Fall '90 92 (49) 418 2.46 (3.46) 40 (22-60)
Spring '91 92 (49) 212 2.29 (3.56) 49 (35-69)
--1991 YEAR CLASS--
Fall '91 68 (35) 186 2.23 (3.68) 37 (22-58)
Spring '92 80 (29) 69 0.84 (2.59) 43 (27-65)
-1992 YEAR CLASS--
Fall '92 89 (25) 119 0.77 (2.83) 37 (16-59)

"- Data for 1987 and 1988 year classes were collected in the lower 50 miles of the Green River (RM 50-0), data
for the 1989-1992 year classes were collected in the lower 120 miles of the Green River (RM 120-0).

11