7821

• UCREFRP Catalog Number: 7821
• Author: Hamilton, S. J., et al.
• Title: Evaluation Of Toxicity To Larval Razorback Sucker Of Selenium-Laden Food Organisms From Ouray NWR On The Green River, Utah.
• USFW Year: 1996.
• USFW - Doc Type: \
• Copyright Material: NO

Table 2. Mean and standard error (in parentheses) of water quality characteristics of water collected at I
sites at Ouray National Wildlife Refuge where zooplankton were collected for feeding larval I
razorback sucker.
Location I
Characteristics Sl S3 S4 S5 SR NR
Study 1 [n=4] I
pH 7.8(0.1) 7.6 (0.1) 8.1 (0) 7.5 (0.1) 8.3 (0.2) 7.9 (0.2)
Conductivity
(j.tmhos/cm)1 3320 (700) 3420 (130) 5510 (310) 7410 (540) 10190 (150) 9730 (160) I
Hardness (mg/L
as CaC03) 302 (53) 254 (3) 405 (19) 469 (29) 353 (25) 430 (10)
Calcium I
(mg/L) 66 (8) 59 (0) 85 (8) 108 (7) 76 (10) 104 (2)
Magnesium
(mg/L) 33 (8) 26 (1) 47 (1) 48 (3) 40 (1) 41 (4) I
Alkalinity (mg/L
as CaC03) 245 (42) 166 (4) 230 (10) 262 (22) 244 (25) 299 (3)
Chloride I
(mg/L) 27 (7) 32 (2) 77 (3) 107 (12) 198 (3) 192 (18)
Sulfate
(mg/L) 147 (20) 193 (15) 251 (34) 441 (153) 316 (101) 339 (98) I
Nitrate
(mg/L) 1.5 (0.3) 1.4 (0.3) 1.7 (0.4) 1.4 (0.3) 1.8 (0.4) 9.2 (2.5)
Nitrite I
(mg/L) 5.4 (2.7) 2.4 (1.3) 3.3 (1.6) 3.2 (0.7) 2.3 (0.8) 2.7 (1.5)
Study 2 [n=3] I
pH 7.7 (0.1) 7.8 (0.2) 8.2 (0.1) 7.4 (0.1) 8.3 (0.2) 7.7 (0)
Conductivity I
(j.tmhos/cm)1 3160 (520) 3520 (140) 5260 (330) 7960 (670) 10040 (190) 9730 (110)
Hardness (mg/L
as CaC03) 256 (45) 254 (3) 374 (29) 478 (36) 325 (24) 421 (1) I
Calcium
(mg/L) 60 (7) 58 (1) 76 (10) 109 (8) 65 (10) 106 (1)
Magnesium I
(mg/L) 26 (7) 26 (2) 44 (2) 50 (4) 39 (1) 38 (1)
Alkalinity (mg/L
as CaC03) 212 (38) 166 (4) 212 (17) 278 (31) 218 (24) 305 (5) I
Chloride
(mg/L) 20 (6) 35 (2) 71 (4) 124 (12) 195 (4) 189 (19)
Sulfate I
(mg/L) 124 (16) 211 (15) 224 (14) 368 (90) 429 (104) 396 (90)
Nitrate
(mg/L) 1.3 (0.4) 1.0 (0.3) 1.3 (0.2) 1.0 (0.2) 1.4 (0.5) 7.6 (2.4) I
Nitrite
(mg/L) 2.4 (1.1) 2.4 (1.3) 3 .2 (1.7) 3.3 (0.7) 2.4 (0.8) 2.3 (1.1)
I
11 I