Table 8: Test results (mean ± standard deviation) for Pseudokirchneriella subcapitata, Ceriodaphnia dubia and rainbow trout exposed to metal mixtures (arsenic, copper, chromium, uranium and zinc) + nutrients (sulphate and ammonia)+ total dissolved solids (TDS) solutions generated using Latte Creek and Halfway Creek collected in summer.

Treatments

Pseudokirchneriella subcapitata

Ceriodaphnia dubia

Rainbow trout

Cell Yield (x104 cells/ml)

Survival
(%)

Reproduction
(Number of broods)

Survival
(%)

Growth1

(mg)

Latte Creek

Lab. Control

27.40 ± 1.70

100

17.50 ± 1.30

100

52 ± 3.40

Site Control

79.90 ± 3.30*

100

 23.10 ± 3.80

100

54.50 ± 2.30

Low

77.80 ± 5.10*

100

21.90 ± 2.40

100

48.50 ± 1.50*#

Moderate

75.80 ± 4.80*

100

14.80 ± 4.50*#

100

49.80 ± 2.0*#

High

72.0 ± 4.80*

100

13.0 ± 5.10*#

100

50.70 ± 1.30*#

Halfway Creek

Lab. Control

27.40 ± 1.70

100

18.10 ± 3.20

100

52.0 ± 3.40

Site Control

79.90 ± 3.30*

100

17.60 ± 7.80

100

54.50 ± 2.30

Low

77.80 ± 5.10*

100

17.70 ± 2.70

100

48.50 ± 1.50*#

Moderate

75.80 ± 4.80*

100

11.40 ± 2.50*#

100

49.80 ± 2.0*#

High

72.0 ± 4.80*

100

12.10 ± 2.20*#

100

50.70 ± 1.30*#

Notes: 1 - Expressed as mg of dry weight; * Significantly different (p < 0.05) from laboratory control; # Significantly different (p< 0.05) from site control.