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New Zealand Ecotoxicity Data for Freshwater Fish

Ecotoxicity testing protocols 

Ecotoxicity results

Soil micro-organisms

Soil invertebrates

Plants

Freshwater invertebrates

Freshwater fish

Contaminant mobility

Soil property data

Models

Toxicity databases

RA methodologies

Document resources

 

Problem Identification

Receptor Characterisation

Exposure Assessment

Toxicity Assessment

Risk Characterisation

Liability and use of this information - Please read

Copper

Species

Toxicant

Test concs
(m g)

Test Duration & End point

NOEC

m g L-1

LOEC d

m g L-1

Toxicity Value

(LC50 or EC50) f

Total Hardness
mg L-1

Bully

G. cotidianus

Cu(II)

{180, 320, 560, 1000, 1800}a

96h survival

180

320

520(600-436)

36.5

Cu(II)

{5.6, 10, 18, 32, 56, 100}a

18d survival

10

18

23.7(40.5-13.8)

36.5

Inanga

G. maculatus

Cu(II)

{10, 18, 32, 56, 100}a

96h survival

56.0

100

85(100-75)

39.2

Cu(II)

{5.6, 10, 18, 56}a

21d survival

18.0

56.0

31.5(32.4-31.7)

39.2

a Nominal concentrations.

d NOEC and LOEC were calculated using one-way analysis of variance (ANOVA), and appropriate USEPA approved hypothesis testing at a significance level of p < 0.05.

f LC50 and EC50 values were derived from either Probit analysis, trimmed Spearman-Karber or Linear Interpolation. 95% confidence intervals are given in parentheses.

Chromium VI

Species

Toxicant

Test Duration & End point

NOECb

m g L-1

LOECb

m g L-1

Toxicity Valuec

(LC50 or EC50)

Bully

G. cotidianus

Cr(VI)

{18000 100000}a

96h survival

56000

100000

>100000

Cr(VI)

18d survival

8000d

15000d

9000d

Inanga

G. maculatus

Cr(VI)

{10000 100000}a

96h survival

18000

32000

37900(42500-33800)

Cr(VI)

{5600 56000}a

21d survival

<5600

5600

3400(4600-3000)

a Nominal concentrations.

b NOEC and LOEC were calculated using one-way analysis of variance (ANOVA), and appropriate USEPA approved hypothesis testing at a significance level of p < 0.05.

c LC50 and EC50 values were derived from either Probit analysis, trimmed Spearman-Karber or Linear Interpolation. 95% confidence intervals are given in parentheses.

d Chronic values estimated from acute data using acute/chronic ratios calculated from inanga data.

Arsenic V

Species

Toxicant

Test concs
(m g L-1)

Test Duration & End point

NOEC d

m g L-1

LOEC d

m g L-1

Toxicity Value f

(LC50 or EC50)

Bully

G. cotidianus

As(V)

{32000 320000}a

96h survival

56000

100000

133300(154000-115500)

As(V)

{5600 100000}a

18d survival

32000

56000

66900**

Inanga

G. maculatus

As(V)

{40000 250000}a

96h survival

40000

63000

56800(64500-48900)

As(V)

{5600 32000}a

21d survival

18000

32000

28900(33400-23500

a Nominal concentrations.

d NOEC and LOEC were calculated using one-way analysis of variance (ANOVA), and appropriate USEPA approved hypothesis testing at a significance level of p < 0.05.

f LC50 and EC50 values were derived from either Probit analysis, trimmed Spearman-Karber or Linear Interpolation. 95% confidence intervals are given in parentheses.

** EC50 toxicity curve was incomplete, no confidence intervals were able to be calculated.

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Page last updated: 01 May 2007

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