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Ecotoxicological information

Long-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
fish early-life stage toxicity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
16/04/2020 to 08/02/2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 210 (Fish, Early-Life Stage Toxicity Test)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Analytical monitoring:
yes
Details on sampling:
- Concentrations: test concentration 1.00, 0.30, 0.10, 0.03 and 0.01 mg/L
- Sampling method: The test item in an amount of 30 mg and a volume of 300 µL DMSO quantitatively transferred into a volumetric flask and filled up to 3000 mL with the reconstituted water
- Sample storage conditions before analysis: samples were analysed immediately after preperation
Vehicle:
yes
Remarks:
Acetone
Details on test solutions:
PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Controls: test media ( reconstituted water), solvent control
- Chemical name of vehicle (organic solvent, emulsifier or dispersant): DMSO
- Concentration of vehicle in test medium (stock solution and final test solution(s) or suspension(s) including control(s)): 0.01ml/L
Test organisms (species):
Danio rerio (previous name: Brachydanio rerio)
Details on test organisms:
TEST ORGANISM
- Common name: Zebra fish
- Source: Tharun aqua fish farm, India

METHOD FOR PREPARATION AND COLLECTION OF FERTILIZED EGGS
- Numbers of parental fish (i.e. of females used to provide required number of eggs): Zebra fishes of both sex of ratio (2 male : 1female)
- Method of collection of fertilised eggs: Eggs were collected from breeding groups, mixed and randomly selected. Spawning traps were placed in the breeding tank for the collection of eggs. To prevent predation of eggs by adult zebra fish, the spawn traps were covered with inert wire mesh of size (2±0.5 mm).
- Subsequent handling of eggs: the spawn traps with the collected eggs were carefully removed. Eggs were rinsed with reconstituted water after collection from spawning traps

POST-HATCH FEEDING
- Start date: 5dpf
- Type/source of feed: 200 rotifer/ml and with paramecium ad libitum
- Amount given: ad libitum
- Frequency of feeding: daily
Test type:
semi-static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
30 d
Remarks on exposure duration:
Total duration 32 days
Hardness:
Control: 190–220 mg/L (as CaCO3) / Solvent control:190 – 220 mg/L (as CaCO3)
Test temperature:
24.6-26 °C
pH:
Control: 7.2–7.8 mg/L / Solvent control: 7.2–7.8 mg/L /Treatment: 7.1–7.8 mg/L
Dissolved oxygen:
Control: 68–78% / Solvent control: 68–78% /
Treatment: 68–78 %
Salinity:
Not applicable
Nominal and measured concentrations:
Nominal concentration: 0.01, 0.03, 0.10, 0.30 and 1.00 mg/L
Details on test conditions:
TEST SYSTEM
- Test vessel: 7 litre of aquaria tank
- Type (delete if not applicable): closed
- Material, size, headspace, fill volume:
- Aeration: no aeration
- Renewal requency:
- No. of fertilized eggs/embryos per vessel:
- No. of vessels per concentration (replicates):
- No. of vessels per control (replicates):
- No. of vessels per vehicle control (replicates):
- Biomass loading rate:

TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water:
- Total organic carbon:
- Particulate matter:
- Metals:
- Pesticides:
- Chlorine:
- Alkalinity:
- Ca/mg ratio:
- Salinity:
- Culture medium different from test medium:
- Intervals of water quality measurement:

OTHER TEST CONDITIONS
- Adjustment of pH:
- Photoperiod:
- Light intensity:

EFFECT PARAMETERS MEASURED (with observation intervals if applicable) :

VEHICLE CONTROL PERFORMED: yes/no

RANGE-FINDING STUDY
- Test concentrations:
- Results used to determine the conditions for the definitive study:

POST-HATCH DETAILS
- Begin of post-hatch period:
- No. of hatched eggs (alevins)/treatment released to the test chamber:
- Release of alevins from incubation cups to test chamber on day no.:

FERTILIZATION SUCCESS STUDY
- Number of eggs used:
- Removal of eggs to check the embryonic development on day no.:
Reference substance (positive control):
not required
Duration:
30 d
Dose descriptor:
LC50
Effect conc.:
0.064 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Remarks on result:
other: 0.064±0.01 mg/L
Duration:
30 d
Dose descriptor:
NOEC
Effect conc.:
< 0.01 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Duration:
30 d
Dose descriptor:
LOEC
Effect conc.:
< 0.01 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Duration:
30 d
Dose descriptor:
EC50
Effect conc.:
0.34 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
fertility
Remarks on result:
other: 0.34±0.047 mg/l
Duration:
30 d
Dose descriptor:
NOEC
Effect conc.:
0.01 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
fertility
Duration:
30 d
Dose descriptor:
LOEC
Effect conc.:
0.03 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
fertility
Duration:
30 d
Dose descriptor:
EC50
Effect conc.:
0.31 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: survival larvae
Remarks on result:
other: 0.31±0.06 mg/L
Details on results:
- Mortality/survival at embryo, larval, juvenile, and adult stages:
LC50 mortality 0.064±0.01 EC50fertility 0.34±0.047 EC50survival 0.31±0.06
NOECmortality <0.01 NOECfertility 0.01 NOEC survival <0.01
LOECmortality <0.01 LOECfertility 0.03 LOEC survival <0.01

- Days to hatch or time to release of young: Hatching success in the control and solvent control group was 93.42 and 94.67% respectively, The NOEC and LOEC for hatching success were determined as 0.01 and 0.03 mg/L, respectively.First egg hatch in treatment, control and solvent control group occurred in the 24-hour period between the Day 2 and Day 3 pre-hatch observation timepoints
- Numbers hatched, : 76 embryos hatched in control and 75 embbryos hatched in solvent control
- Observations on body length and weight of young and/or exposed parents at one or more time periods:
Test concentrations mg/L: mean length (mm) mean dry weight (mg)
1 8.88 21.50
0.30 9.87 23.03
0.10 10.07 23.5
0.03 11.32 25.62
0.01 11.46 26.29
Solvent control 11.97 27.37
Control 11.93 27.53

other results are included in tables sections
Reported statistics and error estimates:
The endpoint values were determined within a given exposure period by using a Probit analysis in the NCSS (Number Cruncher Statistical System) and one-way ANOVA using Graphpad Prism 8.0.

 Individual length (cm) and dry weight (mg) of fish (Control)– Range Finding Test

S. No.

Control

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

11

12

12

11

26

28

28

24

2

13

14

13

13

31

31

30

30

3

12

13

12

13

28

29

28

28

4

12

12

12

14

27

28

26

31

5

13

11

11

12

29

24

22

28

6

13

12

12

11

30

28

24

25

7

12

11

13

12

25

26

29

27

8

12

13

12

12

26

29

27

27

9

13

13

11

13

28

30

26

29

10

13

12

11

11

29

27

24

25

11

11

12

11

12

24

28

24

27

12

12

11

12

12

25

25

28

25

13

12

12

12

13

26

28

29

29

14

13

11

13

11

26

25

30

24

15

14

13

13

13

32

30

31

30

16

11

12

12

12

24

28

28

28

17

12

12

11

11

26

26

24

24

18

12

11

13

12

27

24

29

27

19

11

-

12

13

23

-

27

29

20

-

-

-

-

-

-

-

-

Individual mean

12.21

12.06

12.00

12.16

26.95

27.44

27.05

27.21

Total mean

12.11

27.16

Minimum

11

22

Maximum

14

32

Individual SD

0.85

0.87

0.75

0.90

2.44

2.06

2.50

2.20

Total

SD

0.84

2.30

               R- Replicate; SD – Standard Deviation

Individual length (cm) and dry weight (mg) of fish (Solvent Control)– Range Finding Test

S. No.

Control

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

12

11

12

12

27

26

28

25

2

11

13

11

13

26

30

25

28

3

12

12

12

12

28

27

26

25

4

13

11

13

12

29

24

29

28

5

14

13

13

13

32

30

30

29

6

12

12

12

12

28

25

28

24

7

12

11

11

11

26

24

24

22

8

11

12

12

12

24

28

26

26

9

13

13

11

12

29

29

22

25

10

13

11

13

12

30

24

29

27

11

12

12

13

13

28

28

27

28

12

13

13

12

12

29

30

25

25

13

12

11

12

12

26

25

23

26

14

11

13

12

11

24

29

26

24

15

12

13

11

11

25

31

24

24

16

13

12

13

12

28

28

29

28

17

11

11

11

13

21

27

24

30

18

12

12

12

11

25

27

26

25

19

-

11

-

-

-

26

-

-

20

-

-

-

-

-

-

-

-

Individual mean

12.17

11.95

12.00

12.00

26.94

27.26

26.17

26.06

Total mean

12.03

26.61

Minimum

11

21

Maximum

14

32

Individual SD

0.86

0.85

0.77

0.69

2.60

2.23

2.31

2.10

Total

SD

0.79

2.31

               R- Replicate; SD – Standard Deviation

Individual length (cm) and dry weight (mg) of fish (0.01 mg/L)– Range Finding Test

S. No.

Control

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

12

12

11

11

28

28

23

24

2

11

13

12

13

26

30

25

31

3

12

12

10

10

28

27

22

21

4

13

11

11

11

29

25

21

23

5

12

12

10

10

25

28

22

20

6

12

13

12

12

28

29

22

27

7

13

11

13

13

29

26

29

29

8

11

12

10

11

24

27

22

25

9

12

12

11

12

26

24

24

26

10

12

13

12

11

28

24

27

24

11

12

12

13

10

27

28

29

22

12

13

11

11

12

28

22

24

28

13

11

13

12

13

23

28

26

29

14

11

12

11

10

24

26

21

21

15

12

12

11

12

27

27

24

25

16

13

11

-

11

28

24

-

23

17

-

11

-

-

-

22

-

-

18

-

-

-

-

-

-

-

-

19

-

-

-

-

-

-

-

-

20

-

-

-

-

-

-

-

-

Individual mean

12.00

11.94

11.33

11.38

26.75

26.18

24.07

24.88

Total mean

11.66

25.47

Minimum

10

20

Maximum

13

31

Individual SD

0.73

0.75

0.98

1.09

1.88

2.35

2.66

3.24

Total

SD

0.89

2.53

               R- Replicate; SD – Standard Deviation

Individual length (cm) and dry weight (mg) of fish (0.10 mg/L)– Range Finding Test

S. No.

Control

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

12

12

10

11

28

25

22

26

2

11

11

11

12

23

23

24

27

3

13

12

10

11

28

25

20

22

4

12

10

12

10

26

21

23

23

5

10

10

12

10

22

21

25

21

6

12

11

10

13

24

24

20

28

7

11

12

11

12

23

26

20

25

8

10

12

11

11

22

25

22

22

9

11

10

10

10

26

21

19

21

10

11

10

12

10

25

23

26

21

11

-

11

10

9

-

26

23

19

12

-

-

11

10

-

-

26

23

13

-

-

-

12

-

-

-

28

14

-

-

-

-

-

-

-

-

15

-

-

-

-

-

-

-

-

16

-

-

-

-

-

-

-

-

17

-

-

-

-

-

-

-

-

18

-

-

-

-

-

-

-

-

19

-

-

-

-

-

-

-

-

20

-

-

-

-

-

-

-

-

Individual mean

11.30

11.00

10.83

10.85

24.70

23.64

22.50

23.54

Total mean

10.99

23.59

Minimum

9

19

Maximum

13

28

Individual SD

0.95

0.89

0.83

1.14

2.26

1.96

2.43

2.96

Total

SD

0.96

2.40

               R- Replicate; SD – Standard Deviation

Individual length (cm) and dry weight (mg) of fish (1.00 mg/L)– Range Finding Test

S. No.

Control

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

9

10

10

9

20

25

24

20

2

11

9

-

8

25

22

-

18

3

-

-

-

9

-

-

-

21

4

-

-

-

-

-

-

-

 

5

-

-

-

-

-

-

-

-

6

-

-

-

-

-

-

-

-

7

-

-

-

-

-

-

-

-

8

-

-

-

-

-

-

-

-

9

-

-

-

-

-

-

-

-

10

-

-

-

-

-

-

-

-

11

-

-

-

-

-

-

-

-

12

-

-

-

-

-

-

-

-

13

-

-

-

-

-

-

-

-

14

-

-

-

-

-

-

-

-

15

-

-

-

-

-

-

-

-

16

-

-

-

-

-

-

-

-

17

-

-

-

-

-

-

-

-

18

-

-

-

-

-

-

-

-

19

-

-

-

-

-

-

-

-

20

-

-

-

-

-

-

-

-

Individual mean

10.00

9.50

10.00

8.67

22.50

23.50

24.00

19.67

Total mean

9.54

22.42

Minimum

8

18

Maximum

11

25

Individual SD

1.41

0.71

0.00

0.58

3.54

2.12

0.00

1.53

Total

SD

0.67

1.80

               R- Replicate; SD – Standard Deviation

10               Individual length (cm) and dry weight (mg) of fish (Control)– Definitive test

S. No.

Control

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

12

13

11

12

27

31

26

26

2

13

11

11

14

30

26

25

32

3

11

12

13

12

26

26

31

27

4

12

13

12

11

28

29

29

25

5

13

13

11

11

32

31

27

25

6

11

11

11

12

25

26

26

28

7

12

11

14

12

28

25

32

27

8

12

12

12

13

27

26

28

31

9

11

11

12

11

25

26

29

25

10

13

13

11

13

30

29

25

29

11

11

11

12

11

26

25

27

25

12

12

12

13

12

29

27

31

27

13

11

11

13

12

25

25

30

26

14

12

12

11

12

28

28

25

26

15

11

12

12

11

26

29

27

26

16

12

12

11

13

28

28

26

29

17

14

11

-

12

30

25

-

27

18

11

13

-

13

27

30

-

31

19

-

12

-

-

-

29

-

-

20

-

-

-

-

-

-

-

-

Individual mean

11.89

11.89

11.88

12.06

27.61

27.42

27.75

27.33

Total mean

11.93

27.53

Minimum

11

25

Maximum

14

32

Individual SD

0.90

0.81

0.96

0.87

2.0

2.06

2.32

2.22

Total

SD

0.88

2.15

               R- Replicate; SD – Standard Deviation

Individual length and weight of fish (Solvent control) - Definitive test

S. No.

Solvent control

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

12

12

12

13

27

27

27

30

2

13

11

13

11

30

25

28

26

3

12

12

12

14

28

29

26

32

4

12

13

11

12

26

31

25

27

5

13

11

13

11

29

26

29

26

6

11

11

12

12

25

25

25

28

7

11

11

11

12

26

25

25

27

8

11

13

12

13

25

29

26

29

9

12

13

14

13

26

30

31

31

10

12

11

11

11

27

26

26

26

11

13

12

12

12

29

27

26

26

12

12

11

13

13

27

25

29

29

13

14

12

11

11

32

27

25

25

14

11

11

11

11

26

26

26

26

15

13

12

12

12

30

28

28

26

16

12

11

11

11

27

25

25

26

17

11

13

12

13

26

32

27

31

18

-

12

13

12

 

30

31

28

19

-

-

-

-

-

-

-

-

20

-

-

-

-

-

-

-

-

Individual mean

12.06

11.78

12.00

12.06

27.41

27.39

26.94

27.72

Total mean

11.97

27.37

Minimum

11

25

Maximum

14

32

Individual SD

0.90

0.81

0.91

0.94

1.97

2.28

1.98

2.14

Total

SD

0.89

2.09

            R- Replicate; SD – Standard Deviation

Individual length and weight of fish (0.03 mg/L Concentration)- Definitive test

S. No.

0.03 mg/L Concentration

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

11

11

12

11

25

25

27

24

2

12

12

11

12

27

27

22

23

3

13

12

13

11

30

27

29

25

4

11

11

11

12

27

26

25

27

5

12

12

10

10

28

27

24

23

6

10

9

11

11

24

23

26

25

7

11

10

12

12

25

23

27

26

8

12

11

12

12

28

24

26

27

9

11

11

11

11

27

25

26

26

10

13

12

12

11

30

27

28

25

11

12

10

11

10

26

24

22

23

12

11

12

10

12

25

28

23

26

13

-

11

-

11

-

23

-

24

14

-

12

-

-

-

25

-

-

15

-

-

-

-

-

-

-

-

16

-

-

-

-

-

-

-

-

17

-

-

-

-

-

-

-

-

18

-

-

-

-

-

-

-

-

19

-

-

-

-

-

-

-

-

20

-

-

-

-

-

-

-

-

Individual mean

11.58

11.14

11.33

11.23

26.83

25.29

25.42

24.92

Total mean

11.32

25.62

Minimum

9

22

Maximum

13

30

Individual SD

0.90

0.95

0.89

0.73

1.95

1.73

2.27

1.44

Total

SD

0.87

1.85

R- Replicate; SD – Standard Deviation

Individual length and weight of fish (0.10 mg/L Concentration) - Definitive test

S. No.

0.1 mg/L Concentration

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

9

10

11

9

22

24

24

22

2

10

11

10

10

24

26

24

24

3

11

10

10

10

25

24

23

23

4

10

11

11

11

23

25

25

25

5

11

9

9

11

25

22

22

24

6

9

10

10

10

21

24

23

23

7

10

11

9

9

24

25

21

21

8

9

9

11

11

23

23

24

24

9

-

10

10

10

-

23

23

23

10

-

-

11

-

-

-

25

-

11

-

-

-

-

-

-

-

-

12

-

-

-

-

-

-

-

-

13

-

-

-

-

-

-

-

-

14

-

-

-

-

-

-

-

-

15

-

-

-

-

-

-

-

-

16

-

-

-

-

-

-

-

-

17

-

-

-

-

-

-

-

-

18

-

-

-

-

-

-

-

-

19

-

-

-

-

-

-

-

-

20

-

-

-

-

-

-

-

-

Individual mean

9.88

10.11

10.20

10.11

23.38

24.00

23.40

23.22

Total mean

10.07+

23.5+

Minimum

9

21

Maximum

11

26

Individual SD

0.83

0.78

0.79

0.78

1.41

1.22

1.26

1.20

Total

SD

0.80

1.27

     R- Replicate; SD – Standard Deviation

       +: statistically significant difference between the solvent control and the treatment group at p < 0.05

Individual length and weight of fish (0.30 mg/L Concentration) - Definitive test

S. No.

0.3 mg/L Concentration

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

10

9

10

10

24

21

24

22

2

9

10

9

11

22

24

22

24

3

10

10

11

10

24

23

25

23

4

11

11

10

9

26

25

24

22

5

10

9

10

9

23

22

23

21

6

9

10

-

-

21

22

-

-

7

10

-

-

-

23

-

-

-

8

-

-

-

-

-

-

-

-

9

-

-

-

-

-

-

-

-

10

-

-

-

-

-

-

-

-

11

-

-

-

-

-

-

-

-

12

-

-

-

-

-

-

-

-

13

-

-

-

-

-

-

-

-

14

-

-

-

-

-

-

-

-

15

-

-

-

-

-

-

-

-

16

-

-

-

-

-

-

-

-

17

-

-

-

-

-

-

-

-

18

-

-

-

-

-

-

-

-

19

-

-

-

-

-

-

-

-

20

-

-

-

-

-

-

-

-

Individual mean

9.86

9.83

10.00

9.80

23.29

22.83

23.60

22.40

Total mean

9.87+

23.03+

Minimum

9

21

Maximum

11

26

Individual SD

0.69

0.75

0.71

0.84

1.60

1.47

1.14

1.14

Total

SD

0.75

1.34

     R- Replicate; SD – Standard Deviation

       +: statistically significant difference between the solvent control and the treatment group at p < 0.05

Individual length and weight of fish (1.00 mg/L Concentration) - Definitive test

S. No.

1 mg/L Concentration

R1

R2

R3

R4

R1

R2

R3

R4

Length

(mm)

Length

(mm)

Length

(mm)

Length

(mm)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

Dry Weight

(mg)

1

8

10

9

9

20

23

22

22

2

-

9

-

-

-

21

-

-

3

-

-

-

-

-

-

-

-

4

-

-

-

-

-

-

-

-

5

-

-

-

-

-

-

-

-

6

-

-

-

-

-

-

-

-

7

-

-

-

-

-

-

-

-

8

-

-

-

-

-

-

-

-

9

-

-

-

-

-

-

-

-

10

-

-

-

-

-

-

-

-

11

-

-

-

-

-

-

-

-

12

-

-

-

-

-

-

-

-

13

-

-

-

-

-

-

-

-

14

-

-

-

-

-

-

-

-

15

-

-

-

-

-

-

-

-

16

-

-

-

-

-

-

-

-

17

-

-

-

-

-

-

-

-

18

-

-

-

-

-

-

-

-

19

-

-

-

-

-

-

-

-

20

-

-

-

-

-

-

-

-

Individual mean

8.00

9.50

9.0

9.00

20

22

22

22

Total mean

8.88+

21.50+

Minimum

8

20

Maximum

10

23

Individual SD

0

0.71

0

0

0

1.41

0

0

Total

SD

0.36

0.71

     R- Replicate; SD – Standard Deviation

+: statistically significant difference between the solvent control and the treatment group at p < 0.05

10               The Physico-Chemical Parameters – Range Finding Test

Hours/Day

Parameter

Concentrations (mg/L)

Control

Solvent control

0.01

0.10

1.00

10.00#

20.00#

0 hr

(Day 0)

(Fresh)

pH

7.7

7.7

7.8

7.8

7.8

7.7

7.8

Temperature(°C)

25.7

25.8

25.6

25.6

25.8

25.5

25.6

Dissolved oxygen (%)

78

78

79

78

78

78

76

Hardness(CaCO3)

200

200

-

-

-

-

-

48 hr

(Day 2)

(Spent)

pH

7.5

7.5

7.5

7.5

7.6

7.2

7.1

Temperature(°C)

24.9

24.8

25.1

25

24.9

25.1

25.2

Dissolved oxygen (%)

70

71

71

71

71

70

70

Hardness(CaCO3)

220

220

-

-

-

-

-

48 hr

(Day 2)

(Fresh)

pH

7.8

7.6

7.6

7.7

7.7

-

-

Temperature(°C)

25.7

25.6

25.3

25.4

25.2

-

-

Dissolved oxygen (%)

76

76

76

76

76

-

-

Hardness(CaCO3)

200

200

-

-

-

-

-

96 hr

(Day 4)

Spent

pH

7.3

7.2

7.3

7.3

7.3

-

-

Temperature(°C)

25.6

25.5

25.6

25.5

25.7

-

-

Dissolved oxygen (%)

71

71

71

70

70

-

-

Hardness(CaCO3)

190

190

-

-

-

-

-

96 hr

(Day 4)

Fresh

pH

7.6

7.7

7.7

7.6

7.7

-

-

Temperature(°C)

25.6

25.8

25.8

25.6

25.7

-

-

Dissolved oxygen (%)

75

76

76

75

76

-

-

Hardness(CaCO3)

200

200

-

-

-

-

-

Day 6

(Spent)

pH

7.5

7.4

7.4

7.5

7.5

-

-

Temperature(°C)

24.9

25

25

25.1

25

-

-

Dissolved oxygen (%)

68

69

68

68

68

-

-

Hardness(CaCO3)

200

200

-

-

-

-

-

Day 6

(Fresh)

pH

7.8

7.8

7.7

7.7

7.8

-

-

Temperature(°C)

25.3

25.4

25.4

25.6

25.4

-

-

Dissolved oxygen (%)

72

73

72

72

73

-

-

Hardness(CaCO3)

220

220

-

-

-

-

-

Day 8

(Spent)

pH

7.4

7.5

7.4

7.4

7.4

-

-

Temperature(°C)

25.8

25.6

25.8

25.6

25.7

-

-

Dissolved oxygen (%)

70

69

69

69

68

-

-

Hardness(CaCO3)

190

190

-

-

-

-

-

Key: mg- milligram, L- litre, °C – Degree Celsius

# - due to dead all embryos in the test item concentration of 10 and 20 mg/L after 48 h, the physico-chemical parameters were not determined at remaining days of the exposure period.

(Continued) The Physico-Chemical Parameters – Range Finding Test

Day

Parameter

Concentrations (mg/L)

Control

Solvent control

0.01

0.10

1.00

 

Day 8 (Fresh)

pH

7.8

7.6

7.6

7.6

7.7

Temperature(°C)

25.7

25.8

25.6

25.8

25.8

Dissolved oxygen (%)

75

76

75

75

75

Hardness(CaCO3)

210

210

 -

Day 10

(Spent)

pH

7.2

7.2

7.3

7.3

7.2

Temperature(°C)

25.5

25.6

25.5

25.6

25.6

Dissolved oxygen (%)

70

71

71

70

70

Hardness(CaCO3)

210

210

 -

 

Day 10 (Fresh)

pH

7.7

7.7

7.7

7.7

7.6

Temperature(°C)

25.8

25.6

25.6

25.5

25.6

Dissolved oxygen (%)

77

78

78

77

78

Hardness(CaCO3)

200

200

 -

Day 12

(Spent)

pH

7.3

7.2

7.2

7.3

7.3

Temperature(°C)

25.9

25.7

25.9

25.8

25.8

Dissolved oxygen (%)

72

73

72

72

73

Hardness(CaCO3)

190

190

 -

 

Day 12

(Fresh)

pH

7.5

7.6

7.5

7.5

7.5

Temperature(°C)

25.6

25.4

25.6

25.5

25.5

Dissolved oxygen (%)

76

77

76

77

77

Hardness(CaCO3)

190

190

 -

Day 14

(Spent)

pH

7

7.2

7.1

7.1

7.1

Temperature(°C)

25.3

25.3

25.4

25.4

25.3

Dissolved oxygen (%)

72

72

70

71

70

Hardness(CaCO3)

210

210

 -

 

Day 14 (Fresh)

pH

7.6

7.6

7.6

7.7

7.7

Temperature(°C)

25.2

25.3

25.2

25.2

25.3

Dissolved oxygen (%)

76

77

76

76

76

Hardness(CaCO3)

210

210

 -

Day 16

(Spent)

pH

7.1

7.1

7.2

7.2

7.2

Temperature(°C)

25.4

25.6

25.5

25.5

25.6

Dissolved oxygen (%)

68

69

68

69

69

Hardness(CaCO3)

180

180

 -

Key: mg- milligram, L- litre, °C – Degree Celsius                                                                                                                


 

(Continued) The Physico-Chemical Parameters – Range Finding Test

Day

Parameter

Concentrations (mg/L)

Control

Solvent control

0.01

0.10

1.00

 

Day 16 (Fresh)

pH

7.6

7.7

7.7

7.6

7.6

Temperature(°C)

24.9

24.8

24.9

24.8

24.8

Dissolved oxygen (%)

77

76

76

77

76

Hardness(CaCO3)

210

210

 -

Day 18

(Spent)

pH

7.3

7.2

7.2

7.3

7.2

Temperature(°C)

25.2

25.3

25.2

25.2

25.2

Dissolved oxygen (%)

69

69

69

69

69

Hardness(CaCO3)

210

210

 -

 

Day 18 (Fresh)

pH

7.8

7.8

7.8

7.8

7.8

Temperature(°C)

25.7

25.6

25.7

25.7

25.6

Dissolved oxygen (%)

77

76

76

76

77

Hardness(CaCO3)

200

200

 -

Day 20

(Spent)

pH

7.3

7.3

7.3

7.3

7.2

Temperature(°C)

25.6

25.8

25.8

25.8

25.7

Dissolved oxygen (%)

70

70

71

71

71

Hardness(CaCO3)

200

200

 -

 

Day 22

(Fresh)

pH

7.7

7.7

7.6

7.7

7.7

Temperature(°C)

25.3

25.3

25.4

25.5

25.5

Dissolved oxygen (%)

77

78

78

77

77

Hardness(CaCO3)

190

190

 -

Day 24

(Spent)

pH

7.3

7.4

7.4

7.4

7.4

Temperature(°C)

25.1

25.1

25

25

25

Dissolved oxygen (%)

72

73

72

72

72

Hardness(CaCO3)

210

210

 -

 

Day 24 (Fresh)

pH

7.6

7.7

7.7

7.8

7.8

Temperature(°C)

25.8

25.9

25.9

25.8

25.8

Dissolved oxygen (%)

77

78

77

77

77

Hardness(CaCO3)

200

200

 -

Day 26

(Spent)

pH

7.2

7.2

7.2

7.3

7.2

Temperature(°C)

25.9

26

26.1

26

25.9

Dissolved oxygen (%)

70

70

70

70

70

Hardness(CaCO3)

180

180

 -

Key: mg- milligram, L- litre, °C – Degree Celsius

 

(Continued) The Physico-Chemical Parameters – Range Finding Test

Day

Parameter

Concentrations (mg/L)

Control

Solvent control

0.01

0.10

1.00

 

Day 26 (Fresh)

pH

7.6

7.6

7.7

7.7

7.6

Temperature(°C)

25.7

25.6

25.7

25.6

25.7

Dissolved oxygen (%)

77

75

75

75

75

Hardness(CaCO3)

200

200

 -

Day 28

(Spent)

pH

7.1

7.2

7.1

7.1

7.2

Temperature(°C)

25.6

25.8

25.8

25.7

25.7

Dissolved oxygen (%)

68

69

69

69

68

Hardness(CaCO3)

200

200

 -

 

Day 28 (Fresh)

pH

7.6

7.7

7.7

7.7

7.7

Temperature(°C)

25.1

24.9

24.9

24.9

25

Dissolved oxygen (%)

78

78

77

78

77

Hardness(CaCO3)

190

190

 -

Day 30

(Spent)

pH

7.1

7.2

7.2

7.1

7.1

Temperature(°C)

25.2

25.3

25.3

25.2

25.3

Dissolved oxygen (%)

70

71

71

71

71

Hardness(CaCO3)

210

210

 -

Day 30

(Fresh)

pH

7.8

7.6

7.6

7.7

7.7

Temperature(°C)

25.7

25.8

25.7

25.8

25.6

Dissolved oxygen (%)

77

78

78

77

77

Hardness(CaCO3)

200

200

 -

Day 32

(Spent)

pH

7.3

7.4

7.3

7.3

7.3

Temperature(°C)

25.2

25

25

25.1

25.1

Dissolved oxygen (%)

72

72

72

73

73

Hardness(CaCO3)

190

190

 -

Day 32

(Fresh)

pH

7.7

7.8

7.7

7.7

7.8

Temperature(°C)

24.9

24.8

24.9

24.8

24.8

Dissolved oxygen (%)

78

78

77

77

77

Hardness(CaCO3)

200

200

 -

Day 33

(Spent)

pH

7.3

7.2

7.2

7.3

7.2

Temperature(°C)

25.1

25.2

25.1

25.2

25.2

Dissolved oxygen (%)

72

71

71

72

72

Hardness(CaCO3)

210

210

 -

Key: mg- milligram, L- litre, °C – Degree Celsius

 

10               The Physico-Chemical Parameters – Definitive Test

Hours/Day

Parameter

Concentrations (mg/L)

Control

Solvent control

0.01

0.03

0.10

0.30

1.00

0 hr

(Day 0)

(Fresh)

pH

7.8

7.8

7.8

7.8

7.7

7.8

7.8

Temperature(°C)

25.8

25.8

25.8

25.8

25.7

25.7

25.6

Dissolved oxygen (%)

78

78

78

78

78

78

76

Hardness(CaCO3)

210

210

-

-

-

-

-

48 hr

(Day 2)

(Spent)

pH

7.6

7.6

7.5

7.5

7.5

7.5

7.5

Temperature(°C)

25.1

25.1

25.0

25.0

25.0

25.0

25.0

Dissolved oxygen (%)

74

74

73

73

72

73

73

Hardness(CaCO3)

200

200

-

-

-

-

-

48 hr

(Day 2)

(Fresh)

pH

7.7

7.7

7.7

7.7

7.8

7.7

7.8

Temperature(°C)

26.0

26.0

25.9

25.9

25.9

25.9

25.9

Dissolved oxygen (%)

76

76

76

76

76

76

76

Hardness(CaCO3)

220

220

-

-

-

-

-

96 hr

(Day 4)

Spent

pH

7.5

7.4

7.4

7.5

7.4

7.5

7.5

Temperature(°C)

25.7

25.7

25.6

25.6

25.5

25.6

25.6

Dissolved oxygen (%)

71

71

71

70

70

70

70

Hardness(CaCO3)

210

210

-

-

-

-

-

96 hr

(Day 4)

Fresh

pH

7.7

7.8

7.7

7.7

7.8

7.8

7.8

Temperature(°C)

25.4

25.4

25..4

25.4

25.3

25.3

25.3

Dissolved oxygen (%)

75

75

75

74

74

74

74

Hardness(CaCO3)

210

210

-

-

-

-

-

Day 6

(Spent)

pH

7.6

7.6

7.5

7.5

7.4

7.4

7.4

Temperature(°C)

25.2

25.2

25.3

25.2

25.2

25.2

25.2

Dissolved oxygen (%)

69

69

69

68

68

68

68

Hardness(CaCO3)

190

190

-

-

-

-

-

Day 6

(Fresh)

pH

7.7

7.7

7.7

7.6

7.7

7.7

7.7

Temperature(°C)

25.7

25.7

25.8

25.8

25.7

25.7

25.7

Dissolved oxygen (%)

74

74

74

74

74

74

74

Hardness(CaCO3)

210

210

-

-

-

-

-

Day 8

(Spent)

pH

7.5

7.6

7.5

7.5

7.5

7.5

7.5

Temperature(°C)

25.4

25.4

25.4

25.4

25.3

25.3

25.3

Dissolved oxygen (%)

68

68

68

68

68

68

68

Hardness(CaCO3)

200

200

-

-

-

-

-

Key: mg- milligram, L- litre, °C – Degree Celsius


 

(Continued) The Physico-Chemical Parameters – Definitive Test

Day

Parameter

Concentrations (mg/L)

Control

Solvent control

0.01

0.03

0.10

0.30

1.00

 

Day 8 (Fresh)

pH

7.7

7.6

7.6

7.7

7.6

7.6

7.6

Temperature(°C)

25.8

25.8

25.8

25.8

25.7

25.7

25.7

Dissolved oxygen (%)

77

77

78

77

77

77

77

Hardness(CaCO3)

220

220

-

-

-

-

-

Day 10

(Spent)

pH

7.4

7.5

7.5

7.4

7.4

7.4

7.3

Temperature(°C)

25.2

25.2

25.2

25.2

25.1

25.1

25.1

Dissolved oxygen (%)

73

73

74

73

73

73

73

Hardness(CaCO3)

210

210

-

-

-

-

-

 

Day 10 (Fresh)

pH

7.6

7.6

7.6

7.7

7.7

7.8

7.7

Temperature(°C)

26.0

26.0

26.0

26.0

26.0

26.1

26.1

Dissolved oxygen (%)

77

77

77

77

77

77

77

Hardness(CaCO3)

220

220

-

-

-

-

-

Day 12

(Spent)

pH

7.4

7.4

7.3

7.4

7.4

7.4

7.3

Temperature(°C)

25.5

25.5

25.5

25.6

25.6

25.6

25.5

Dissolved oxygen (%)

73

72

73

72

72

72

71

Hardness(CaCO3)

200

200

-

-

-

-

-

 

Day 12

(Fresh)

pH

7.6

7.7

7.7

7.6

7.6

7.6

7.7

Temperature(°C)

25.5

25.5

25.5

25.5

25.5

25.5

25.4

Dissolved oxygen (%)

77

76

76

75

75

75

74

Hardness(CaCO3)

210

210

-

-

-

-

-

Day 14

(Spent)

pH

7.3

7.3

7.3

7.3

7.3

7.3

7.2

Temperature(°C)

25.2

25.2

25.3

25.3

25.3

25.3

25.2

Dissolved oxygen (%)

73

73

72

72

72

72

72

Hardness(CaCO3)

200

200

-

-

-

-

-

 

Day 14 (Fresh)

pH

7.7

7.7

7.6

7.6

7.6

7.6

7.6

Temperature(°C)

25.5

25.5

25.5

25.5

25.5

25.5

25.4

Dissolved oxygen (%)

77

77

78

77

77

77

77

Hardness(CaCO3)

220

220

-

-

-

-

-

Day 16

(Spent)

pH

7.4

7.4

7.4

7.5

7.5

7.5

7.5

Temperature(°C)

25.2

25.3

25.2

25.3

25.3

25.3

25.3

Dissolved oxygen (%)

69

68

68

68

68

68

68

Hardness(CaCO3)

200

200

-

-

-

-

-

Key: mg- milligram, L- litre, °C – Degree Celsius


 

(Continued) The Physico-Chemical Parameters – Definitive Test

Day

Parameter

Concentrations (mg/L)

Control

Solvent control

0.01

0.03

0.10

0.30

1.00

 

Day 16 (Fresh)

pH

7.8

7.7

7.7

7.7

7.7

7.7

7.7

Temperature(°C)

25.7

25.7

25.7

25.7

25.7

25.7

25.7

Dissolved oxygen (%)

76

76

76

76

76

76

76

Hardness(CaCO3)

220

220

-

-

-

-

-

Day 18

(Spent)

pH

7.4

7.4

7.4

7.3

7.3

7.3

7.3

Temperature(°C)

25.4

25.4

25.4

25.3

25.3

25.3

25.3

Dissolved oxygen (%)

68

69

69

69

69

69

69

Hardness(CaCO3)

210

210

-

-

-

-

-

 

Day 18 (Fresh)

pH

7.6

7.7

7.6

7.7

7.7

7.7

7.7

Temperature(°C)

25.6

25.5

25.6

25.7

25.7

25.7

25.7

Dissolved oxygen (%)

77

78

78

77

77

77

77

Hardness(CaCO3)

210

210

-

-

-

-

-

Day 20

(Spent)

pH

7.2

7.2

7.3

7.3

7.3

7.3

7.3

Temperature(°C)

25.3

25.3

25.2

25.2

25.2

25.2

25.2

Dissolved oxygen (%)

71

71

71

69

69

69

69

Hardness(CaCO3)

190

190

-

-

-

-

-

 

Day 22

(Fresh)

pH

7.6

7.7

7.7

7.6

7.6

7.6

7.6

Temperature(°C)

25.7

25.6

25.5

25.5

25.5

25.5

25.5

Dissolved oxygen (%)

78

78

78

78

78

78

78

Hardness(CaCO3)

210

210

-

-

-

-

-

Day 24

(Spent)

pH

7.6

7.6

7.5

7.5

7.5

7.5

7.5

Temperature(°C)

25.1

25.1

25.0

25.0

25.0

25.0

25.0

Dissolved oxygen (%)

74

74

73

73

73

73

73

Hardness(CaCO3)

200

200

-

-

-

-

-

 

Day 24 (Fresh)

pH

7.8

7.7

7.7

7.7

7.7

7.7

7.7

Temperature(°C)

26.0

26.0

26.0

26.0

26.0

26.0

26.0

Dissolved oxygen (%)

78

78

78

77

77

77

77

Hardness(CaCO3)

210

210

-

-

-

-

-

Day 26

(Spent)

pH

7.4

7.4

7.4

7.3

7.3

7.3

7.3

Temperature(°C)

25.7

25.6

25.5

25.6

25.6

25.6

25.6

Dissolved oxygen (%)

71

71

70

69

69

69

69

Hardness(CaCO3)

200

200

-

-

-

-

-

Key: mg- milligram, L- litre, °C – Degree Celsius


 

(Continued) The Physico-Chemical Parameters – Definitive Test

Day

Parameter

Concentrations (mg/L)

Control

Solvent control

0.01

0.03

0.10

0.30

1.00

 

Day 26 (Fresh)

pH

7.7

7.7

7.7

7.6

7.6

7.6

7.6

Temperature(°C)

25.9

25.9

25.9

25.9

25.9

25.9

25.9

Dissolved oxygen (%)

76

76

76

75

75

75

75

Hardness(CaCO3)

220

220

-

-

-

-

-

Day 28

(Spent)

pH

7.3

7.2

7.3

7.3

7.3

7.3

7.3

Temperature(°C)

25.3

25.3

25.3

25.4

25.4

25.4

25.4

Dissolved oxygen (%)

72

72

71

71

71

71

71

Hardness(CaCO3)

200

210

-

-

-

-

-

 

Day 28 (Fresh)

pH

7.7

7.7

7.6

7.6

7.6

7.6

7.6

Temperature(°C)

25.2

25.2

25.2

25.2

25.2

25.2

25.2

Dissolved oxygen (%)

77

77

77

76

76

76

76

Hardness(CaCO3)

210

210

-

-

-

-

-

Day 30

(Spent)

pH

7.2

7.2

7.2

7.1

7.1

7.1

7.1

Temperature(°C)

24.7

24.7

24.7

24.8

24.8

24.8

24.8

Dissolved oxygen (%)

73

72

72

72

72

72

72

Hardness(CaCO3)

190

190

-

-

-

-

-

Day 30

(Fresh)

pH

7.7

7.7

7.7

7.6

7.6

7.6

7.6

Temperature(°C)

25.9

25.9

25.9

25.9

25.9

25.9

25.9

Dissolved oxygen (%)

76

76

76

75

75

75

75

Hardness(CaCO3)

220

220

-

-

-

-

-

Day 32

(Spen 

pH

7.2

7.2

7.2

7.1

7.1

7.1

7.1

Temperature(°C)

24.7

24.7

24.7

24.8

24.8

24.8

24.8

Dissolved oxygen (%)

73

72

72

72

72

72

72

Hardness(CaCO3)

200

200

-

-

-

-

-

Day 32

(Fresh)

pH

7.7

7.7

7.6

7.6

7.6

7.6

7.6

Temperature(°C)

25.3

25.3

25.3

25.3

25.3

25.3

25.3

Dissolved oxygen (%)

77

77

77

76

76

76

76

Hardness(CaCO3)

210

210

-

-

-

-

-

Day 33

(Spent 

pH

7.3

7.3

7.3

7.2

7.2

7.2

7.1

Temperature(°C)

24.8

24.8

24.8

24.8

24.8

24.7

24.7

Dissolved oxygen (%)

72

72

72

71

71

71

70

Hardness(CaCO3)

200

200

-

-

-

-

-

Key: mg- milligram, L- litre, °C – Degree Celsius

 

10               Pre-hatch observation of embryo –Range Finding Test

Concentration

(mg/L)

R

No. of embryos exposed

Pre-hatch

No. of Dead embryos

No. of Hatched larvae

Mean % of Hatched larvae

24h (Day 1)

48h (Day 2)

72h (Day 3)

Control

1

20

20N

20N

20N

0

20

98.75

2

20

1CE, 19N

19N

19N

1

19

3

20

20N

20N

20N

0

20

4

20

20N

20N

20N

0

20

Solvent control

1

20

1CE, 19N

19N

19N

1

19

97.50

2

20

20N

20N

20N

0

20

3

20

1LS, 19N

1LS, 19N

19N

1

19

4

20

20N

20N

20N

0

20

0.01

1

20

1CE, 19N

19N

19N

1

19

95

2

20

1LS, 19N

1LS, 19N

11D, 19N

1

19

3

20

1LS, 19N

1D, 19N

19N

1

19

4

20

1CE, 19N

19N

19N

1

19

0.10

1

20

3CE, 2LS, 15N

2D, 15N

15N

5

15

66.25

2

20

3CE, 2LS, 15N

1D, 1LS, 15N

1D, 15N

5

15

3

20

5CE, 2LS, 13N

2D, 13N

13N

7

13

4

20

4CE, 6LS, 10N

4D, 2LS, 10N

2D, 10N

10

10

1.00

1

20

11CE, 2LS, 7N

2D, 7N

7N

13

7

27.5

2

20

13CE, 1LS, 6N

1D, 1LH, 5N

1D, 5N

15

5

3

20

12CE, 2LS, 6N

2D, 2LH, 4N

2D, 4N

16

4

4

20

10CE, 1LS, 9N

4LH, 6N

4D, 6N

14

6

10.00

1

20

20CE

-

-

20

0

0

2

20

20CE

-

-

20

0

3

20

20CE

-

-

20

0

4

20

20CE

-

-

20

0

20.00

1

20

20CE

-

-

20

0

0

2

20

20CE

-

-

20

0

3

20

20CE

-

-

20

0

4

20

20CE

-

-

20

0

 
               Key:mg- milligram; L- litre;CE- Coagulated embryos; LS - Lack of somite formation; LH - Lack of heartbeat; D – Dead; N – Normal; R - Replicate

11               Post-hatch Observation of larvae and juveniles–Range Finding Test

Concentration

(mg/L)

R

No. of hatched Larvae

Post-Hatch

Clinical Signs/Dead

Days

1

2

3

4

5

6

7

8

9

10

Control

1

20

20N

20N

20N

20N

20N

20N

20N

20N

20N

20N

2

19

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

3

20

20N

20N

20N

20N

20N

20N

20N

20N

20N

20N

4

20

20N

20N

20N

20N

20N

20N

20N

20N

20N

20N

Solvent control

1

19

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

2

20

20N

20N

20N

20N

20N

20N

20N

20N

20N

19N, 1D

3

19

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

4

20

20N

20N

20N

20N

20N

19N, 1D

19N

19N

19N

19N

0.01

1

19

19N

19N

19N

19N

19N

19N

19N

19N

18N, 1D

18N

2

19

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

3

19

19N

19N

19N

19N

19N

19N

19N

18N, 1D

18N

18N

4

19

19N

19N

19N

19N

19N

19N

19N

18N, 1D

18N

18N

0.10

1

15

15N

15N

15N

14N, 1D

14N

14N

14N

14N

14N

14N

2

15

15N

15N

14N, 1D

14N

14N

14N

14N

14N

13N, 1D

13N

3

13

13N

13N

12N, 1D

12N

12N

12N

12N

12N

12N

11N, 1D

4

10

10N

10N

10N

10N

10N

10N

9N, 1D

9N

9N

9N

1.00

1

7

7N

7N

7N

7N

7N

6N, 1D

6N

6N

6N

5N, 1D

2

5

5N

5N

5N

5N

5N

5N

5N

5N

4N, 1D

4N

3

4

4N

4N

4N

4N

4N

4N

4N

4N

4N

3N, 1D

4

6

6N

6N

6N

6N

6N

6N

5N, 1D

5N

5N

5N

Key:mg- milligram;N – Normal; D – Dead; R – Replicate

 

(Continued) Post-hatch Observation of larvae and juveniles–Range Finding Test

Concentration

(mg/L)

R

No. of hatched larvae

Post-Hatch

Clinical Signs/Dead

Days

11

12

13

14

15

16

17

18

19

20

Control

1

20

20N

20N

20N

20N

20N

20N

20N

20N

20N

20N

2

19

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

3

20

20N

20N

19N, 1D

19N

19N

19N

19N

19N

19N

19N

4

20

20N

20N

20N

20N

20N

20N

20N

19N, 1D

19N

19N

Solvent control

1

19

19N

19N

19N

19N

18N, 1D

18N

18N

18N

18N

18N

2

20

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

3

19

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

4

20

19N

19N

19N

19N

19N

19N

18N, 1D

18N

18N

18N

0.01

1

19

18N

18N

18N

18N

18N

17N, 1D

17N

17N

17N

17N

2

19

19N

19N

19N

19N

18N, 1D

18N

18N

18N

18N

18N

3

19

18N

18N

18N

17N, 1D

17N

17N

17N

16N, 1D

16N

16N

4

19

18N

18N

18N

18N

18N

18N

18N

18N

17N, 1D

17N

0.10

1

15

14N

13N, 1D

13N

13N

13N

12N, 1D

12N

12N

12N

12N

2

15

13N

13N

12N, 1D

12N

12N

12N

11N, 1D

11N

10N, 1D

10N

3

13

11N

11N

10N, 1D

10N

10N

10N

10N

10N

9N, 1D

9N

4

10

9N

9N

9N

9N

8N, 1D

8N

8N

8N

8N

8N

1.00

1

7

5N

5N

5N

5N

5N

5N

5N

4N, 1D

4N

4N

2

5

4N

4N

3N, 1D

3N

3N

3N

3N

3N

3N

2N, 1D

3

4

3N

3N

3N

3N

3N

3N

3N

3N

2N, 1D

2N

4

6

5N

5N

5N

4N, 1D

4N

4N

4N

4N

4N

4N

Key:mg- milligram;N – Normal; D – Dead; R – Replicate

 

 

 

(Continued) Post-hatch Observation of larvae and juveniles–Range Finding Test

Concentration

(mg/L)

R

No. of hatched larvae

Post-Hatch

No. of juveniles surviving at 30 days post-hatch

Mean % of fish larvae surviving at 30 days post-hatch

Clinical Signs/Dead

Days

21

22

23

24

25

26

27

28

29

30

Control

1

20

20N

20N

20N

20N

20N

20N

20N

20N

20N

20N

20

96.20

2

19

18N, 1D

18N

18N

18N

18N

18N

18N

18N

18N

18N

18

3

20

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

19

4

20

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

19

Solvent control

1

19

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

18

93.59

2

20

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

19

3

19

19N

18N, 1D

18N

18N

18N

18N

18N

18N

18N

18N

18

4

20

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

18

0.01

1

19

17N

17N

16N, 1D

16N

16N

16N

16N

16N

16N

16N

16

84.21

2

19

17N, 1D

17N

17N

17N

17N

17N

17N

17N

17N

17N

17

3

19

16N

16N

15N, 1D

15N

15N

15N

15N

15N

15N

15N

15

4

19

17N

17N

17N

16N, 1D

16N

16N

16N

16N

16N

16N

16

0.10

1

15

11N, 1D

11N

11N

10N, 1D

10N

10N

10N

10N

10N

10N

10

64.15

2

15

10N

9N, 1D

9N

9N

9N

9N

9N

9N

9N

9N

9

3

13

9N

9N

8N, 1D

8N

8N

8N

8N

8N

8N

8N

8

4

10

8N

7N, 1D

7N

7N

7N

7N

7N

7N

7N

7N

7

1.00

1

7

3N , 1D

3N

2N, 1D

2N

2N

2N

2N

2N

2N

2N

2

31.82

2

5

2N

2N

2N

2N

1N, 1D

1N

1N

1N

1N

1N

1

3

4

2N

2N

2N

1N, 1D

1N

1N

1N

1N

1N

1N

1

4

6

4N

4N

4N

4N

3N, 1D

3N

3N

3N

3N

3N

3

Key:mg- milligram;N – Normal; H-Hypoventilation; L – Lethargy; D – Dead; R – Replicate

12               Stage wise mortality of fish- Range Finding Test

Concentration

(mg/L)

R

No. of eggs added at the start of test

Mortality

Pre-hatch

Post-hatch

Embryo stage

Larva and Juveniles stage

Days

1

2

3

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Control

1

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

0

2

20

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

0

0

4

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Solvent control

1

20

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

2

20

0

0

0

0

0

0

0

0

0

0

0

0

1

0

0

0

0

0

3

20

0

0

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4

20

0

0

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0

0

0.01

1

20

1

0

0

0

0

0

0

0

0

0

0

1

0

0

0

0

0

0

2

20

0

0

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

3

20

0

1

0

0

0

0

0

0

0

0

1

0

0

0

0

0

1

0

4

20

1

0

0

0

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0.10

1

20

3

2

0

0

0

0

1

0

0

0

0

0

0

0

1

0

0

0

2

20

3

1

1

0

0

1

0

0

0

0

0

1

0

0

0

1

0

0

3

20

5

2

0

0

0

1

0

0

0

0

0

0

1

0

0

1

0

0

4

20

4

4

2

0

0

0

0

0

0

1

0

0

0

0

0

0

0

1

1.00

1

20

11

2

0

0

0

0

0

0

1

0

0

0

1

0

0

0

0

0

2

20

13

1

0

0

0

0

0

0

0

0

0

1

0

0

0

1

0

0

3

20

12

2

2

0

0

0

0

0

0

0

0

0

1

0

0

0

0

0

4

20

10

0

4

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0

10.00

1

20

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

2

20

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

3

20

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

4

20

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

20.00

1

20

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

2

20

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

3

20

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

4

20

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

               Key:mg- milligram;R – Replicate

 

(Continued) Stage wise mortality of fish - Range Finding Test

Concentration

(mg/L)

R

No. of eggs added at the start of test

Mortality

Cumulative Mortality

(Day 30)

Total No. of cumulative mortality

Mean % of

Cumulative Mortality

SD

Larva and Juveniles stage

Days

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

 

 

 

 

Control

1

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

5

6.25

0.5

2

20

0

0

0

0

0

1

0

0

0

0

0

0

0

0

0

2

3

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

4

20

0

0

1

0

0

0

0

0

0

0

0

0

0

0

0

1

Solvent control

1

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2

7

8.75

0.5

2

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

3

20

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0

2

4

20

0

1

0

0

0

0

0

0

0

0

0

0

0

0

0

2

0.01

1

20

1

0

0

0

0

0

0

1

0

0

0

0

0

0

0

4

16

22.5

0.8

2

20

0

0

0

0

0

1

0

0

0

0

0

0

0

0

0

3

3

20

0

0

1

0

0

0

0

1

0

0

0

0

0

0

0

5

4

20

0

0

0

1

0

0

0

0

1

0

0

0

0

0

0

4

0.10

1

20

1

0

0

0

0

1

0

0

1

0

0

0

0

0

0

10

46

57.5

1.3

2

20

0

1

0

1

0

0

1

0

0

0

0

0

0

0

0

11

3

20

0

0

0

1

0

0

0

1

0

0

0

0

0

0

0

12

4

20

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0

13

1.00

1

20

0

0

1

0

0

1

0

1

0

0

0

0

0

0

0

18

72

90

0.8

2

20

0

0

0

0

1

0

0

0

0

1

0

0

0

0

0

18

3

20

0

0

0

1

0

0

0

0

1

0

0

0

0

0

0

19

4

20

0

0

0

0

0

0

0

0

0

1

0

0

0

0

0

17

10.00

1

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

20

80

100

0

2

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

20

3

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

20

4

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

20

20.00

1

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

20

80

100

0

2

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

20

3

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

20

4

20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

20

Key:mg- milligram;R – Replicate; SD – Standard Deviation

13               Pre-hatch observation of embryo – Definitive Test

Concentration

(mg/L)

R

No. of embryos exposed

Pre-hatch

No. of Dead embryos

No. of Hatched larvae

Mean % of Hatched larvae

24h (Day 1)

48h (Day 2)

72h (Day 3)

Control

1

20

20N

20N

20N

0

20

95.00

2

20

20N

1LH, 19N

1LH, 19N

1

19

3

20

20N

1LS, 19N

1LS, 19N

1

19

4

20

1LS, 19N

1LS, 1LH, 18N

1LS, 1LH, 18N

2

18

Solvent control

1

20

1LS, 19N

1LS, 19N

1LS, 19N

1

19

93.75

2

20

20N

20N

20N

0

20

3

20

20N

1LS, 1LH, 18N

1LS, 1LH, 18N

2

18

4

20

1LS, 19N

1LS, 1LH, 18N

1LS, 1LH, 18N

2

18

0.01

1

20

1CE, 2LS, 17N

2LS, 17N

2LS, 17N

3

17

85.00

2

20

2CE, 1LS, 17N

1LS, 17N

1LS, 17N

3

17

3

20

2LS, 1CE, 16N

2LS, 1LH, 16N

2LS, 1LH, 16N

4

16

4

20

2LS, 18N

2LS, 18N

2LS, 18N

2

18

0.03

1

20

4CE, 2LS, 14N

2LS, 14N

2LS, 14N

6

14

72.50

2

20

4CE, 1LS, 15N

1LS, 15N

1LS, 15N

5

15

3

20

3LS, 3CE, 14N

3LS, 14N

3LS, 14N

6

14

4

20

3CE, 2LS, 15N

2LS, 15N

2LS, 15N

5

15

0.10

1

20

6CE, 2LS, 12N

2LS, 12N

2LS, 12N

8

12

66.25

2

20

5CE, 1LS, 14N

1LS, 14N

1LS, 14N

6

14

3

20

3CE, 2LS, 15N

1LS, 1LH, 15N

1LS, 1LH, 15N

5

15

4

20

5CE, 3LS, 12N

3LS, 12N

3LS, 12N

8

12

0.30

1

20

7CE, 2LS, 11N

2LS, 11N

2LS, 11N

9

11

53.75

2

20

8CE, 2LS, 10N

2LS, 10N

2LS, 10N

10

10

3

20

7CE, 1LS, 12N

1LS, 12N

1LS, 12N

8

12

4

20

8CE, 2LS, 10N

2LS, 10N

2LS, 10N

10

10

1.00

1

20

14CE, 2LS, 4N

2LS, 4N

2LS, 4N

16

4

25.00

2

20

13CE, 2LS, 5N

2LS, 5N

2LS, 5N

15

5

3

20

14CE, 1LS, 5N

1LS, 5N

1LS, 5N

15

5

4

20

12CE, 2LS, 6N

2LS, 6N

2LS, 6N

14

6


               Key:mg- milligram; L- litre;CE- Coagulated embryos; LS - Lack of somite formation; LH - Lack of heartbeat; N – Normal; R – Replicate

 

14               Post-hatch Observation of larvae and juveniles–Definitive Test

Concentration

(mg/L)

R

No. of hatched Larvae

Post-Hatch

Clinical Signs/Dead

Days

1

2

3

4

5

6

7

8

9

10

Control

1

20

20N

20N

20N

20N

20N

20N

20N

20N

20N

20N

2

19

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

3

19

19N

19N

19N

19N

19N

19N

18N, 1D

18N

18N

18N,

4

18

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

Solvent control

1

19

19N

19N

19N

19N

19N

18N, 1D

18N

18N

18N

18N

2

20

20N

20N

20N

20N

20N

20N

20N

20N

20N

20N

3

18

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

4

18

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

0.01

1

17

17N

17N

17N

17N

17N

17N

17N

17N

17N

17N

2

17

17N

17N

17N

17N

17N

17N

17N

17N

17N

17N

3

16

16N

16N

16N

16N

16N

16N

16N

16N

16N

16N

4

18

18N

18N

18N

18N

18N

18N

18N

17N, 1D

17N

17N

0.03

1

14

14N

14N

14N

14N

14N

14N

14N

14N

14N

13N, 1D

2

15

15N

15N

15N

15N

15N

15N

15N

15N

15N

15N

3

14

14N

14N

14N

14N

14N

14N

14N

14N

14N

14N

4

15

15N

15N

15N

15N

15N

15N

14N, 1D

15N

15N

15N

0.10

1

12

12N

12N

12N

12N

12N

12N

11N, 1D

11N

11N

11N

2

14

14N

14N

14N

14N

14N

14N

14N

14N

14N

14N

3

15

15N

15N

15N

15N

15N

15N

15N

15N

14N, 1D

14N

4

12

12N

12N

12N

12N

12N

12N

12N

12N

12N

11N, 1D

0.30

1

11

11N

11N

11N

11N

10N, 1D

10N

10N

10N

10N

9N, 1D

2

10

10N

10N

10N

10N

10N

10N

10N

10N

10N

10N

3

12

12N

12N

12N

11N, 1D

11N

11N

11N

11N

11N

11N

4

10

10N

10N

10N

10N

10N

10N

10N

10N

10N

10N

1.00

1

4

4N

4N

4N

4N

4N

4N

3N, 1D

3N

3N

3N

2

5

5N

5N

5N

5N

5N

5N

5N

4N, 1D

4N

4N

3

5

5N

5N

5N

5N

5N

5N

5N

4N, 1D

4N

4N

4

6

6N

6N

6N

6N

6N

6N

6N

6N

6N

6N

Key:mg- milligram;N – Normal; D – Dead; R – Replicate

 

(Continued) Post-hatch Observation of larvae and juveniles– Definitive Test

Concentration

(mg/L)

R

No. of hatched larvae

Post-Hatch

Clinical Signs/Dead

Days

11

12

13

14

15

16

17

18

19

20

Control

1

20

20N

20N

20N

19N, 1D

19N

19N

19N

19N

19N

19N

2

19

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

3

19

18N,

18N,

18N,

18N,

18N

18N

17N, 1D

17N

17N

17N

4

18

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

Solvent control

1

19

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

2

20

20N

20N

20N

20N

19N, 1D

19N

19N

19N

18N, 1D

18N

3

18

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

4

18

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

0.01

1

17

17N

17N

17N

17N

17N

17N

17N

17N

17N

17N

2

17

17N

17N

17N

17N

17N

17N

17N

17N

17N

17N

3

16

16N

16N

16N

16N

16N

16N

16N

16N

16N

16N

4

18

17N

17N

17N

17N

16N, 1D

16N

16N

16N

16N

16N

0.03

1

14

13N

13N

13N

13N

13N,

13N

13N

13N

13N

13N

2

15

15N

15N

15N

15N

15N

15N

15N

15N

15N

15N

3

14

14N

14N

14N

14N

14N

14N

13N, 1D

13N

13N

13N

4

15

15N

15N

15N

15N

15N

14N, 1D

14N

14N

14N

14N

0.10

1

12

11N

11N

11N

11N

11N

11N

11N

11N

11N

11N

2

14

14N

14N

14N

14N

14N

14N

13N, 1D

13N

12N, 1L

12N, 1D

3

15

14N

14N

14N

14N

14N

14N

14N

14N

14N

13N, 1D

4

12

11N

11N

11N

11N

11N

11N

11N

11N

11N

11N

0.30

1

11

9N

9N

9N

9N

9N

9N

9N

9N

9N

9N

2

10

10N

10N

10N

10N

10N

10N

9N, 1D

9N

9N

9N

3

12

11N

11N

11N

11N

11N

11N

11N

11N

10N, 1D

10N

4

10

10N

10N

10N

10N

10N

10N

10N

10N

10

9N, 1D

1.00

1

4

3N

3N

3N

3N

3N

3N

3N

3N

3N

3N

2

5

4N

4N

4N

4N

4N

4N

4N

3N, 1D

3N

3N

3

5

4N

4N

4N

4N

4N

4N

3N, 1D

3N

3N

3N

4

6

6N

6N

6N

6N

6N

5N, 1D

5N

5N

4N, 1D

4N

Key:mg- milligram;N – Normal; D – Dead; R – Replicate

 

(Continued) Post-hatch Observation of larvae and juveniles– Definitive Test

Concentration

(mg/L)

R

No. of hatched larvae

Post-Hatch

No. of juveniles surviving at 30 days post-hatch

Mean % of fish larvae surviving at 30 days post-hatch

Clinical Signs/Dead

Days

21

22

23

24

25

26

27

28

29

30

Control

1

20

19N

19N

19N

19N

19N

18N, 1L

18N, 1H

18N, 1D

18N

18N

18

93.42

2

19

19N

19N

19N

19N

19N

19N

19N

19N

19N

19N

19

3

19

17N

17N

17N

17N

17N

17N

17N

16N, 1L

16N, 1H

16N, 1D

16

4

18

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

18

Solvent control

1

19

18N

18N

18N

18N

18N

17N, 1L

17N, 1L

17N, 1H

17N, 1D

17N

17

94.67

2

20

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

18

3

18

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

18

4

18

18N

18N

18N

18N

18N

18N

18N

18N

18N

18N

18

0.01

1

17

17N

17N

17N

17N

17N

16N, 1L

16N, 1L

16N, 1D

16N

15N, 1L

16

91.18

2

17

17N

17N

17N

17N

17N

17N

17N

17N

17N

17N

17

3

16

16N

16N

16N

16N

16N

16N

16N

15N, 1L

15N, 1D

15N

15

4

18

16N

16N

16N

15N, 1L

15N, 1D

14N, 1L

14N, 1D

14N

14N

13N, 1L

14

0.03

1

14

13N

13N

13N

13N

13N

13N

12N, 1L

12N, 1D

12N

12N

12

87.93

2

15

15N

15N

15N

15N

15N

15N

15N

14N, 1L

14N, 1D

14N

14

3

14

13N

13N

13N

13N

12N, 1L

12N, 1H

12N, 1D

12N

12N

12N

12

4

15

14N

14N

14N

14N

14N

14N

14N

13N, 1L

13N, 1D

12N, 1L

13

0.10

1

12

11N

11N

11N

10N, 1L

9N, 2L

8N, 3L

8N, 1L, 2D

8N, 1L

8N, 1D

8N

8

67.92

2

14

12N

13N

13N

12N, 1L

12N, 1D

12N

10N, 2L

10N, 2D

9N, 1L

9N, 1D

9

3

15

13N

13N

13N

12N, 1L

12N, 1H

12N, 1D

11N, 1L

11N, 1D

11N, 1L

10N, 1D

10

4

12

11N

11N

11N

11N

10N, 1D

10N

10N

9N, 1L

9N, 1D

8N, 1L

9

0.30

1

11

9N

9N

9N

9N

9N

8N, 1L

7N, 2L

7N, 2L

7N, 2D

6N, 1L

7

53.49

2

10

9N

9N

9N

9N

9N

9N

8N, 1L

8N, 1D

7N, 1D

6N, 1D

6

3

12

10N

10N

10N

10N

9N, 1L

9N, 1D

8N, 1L

8N, 1D

5N, 3L

5N, 3D

5

4

10

9N

9N

9N

9N

9N

8N, 1L

7N, 1L, 1D

7N, 1L

5N, 3 L

5N, 3D

5

1.00

1

4

3N

3N

3N

3N

3N

1N, 2L

1N, 1L, 1D

1N, 1L

1L, 1D

1L

1

25.00

2

5

3N

3N

3N

3N

3N

3N

2N, 1L

2N, 1D

1N, 1L

2L

2

3

5

3N

3N

3N

3N

3N

3N

1N, 2L

2L, 1D

1L, 1D

1L

1

4

6

4N

4N

4N

4N

3N, 1L

2N, 2L

2N, 1L, 1D

1N, 2L

1N, 2L

1L, 2D

1

Key:mg- milligram;N – Normal; H-Hypoventilation; L – Lethargy; D – Dead; R – Replicate

 

15               Stage wise mortality of fish-Definitive test

Concentration

(mg/L)

R

No. of eggs added at the start of test

Mortality

Pre-hatch

Post-hatch

Embryo stage

Larva and Juveniles stage

Days

1

2

3

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Control

1

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

0

2

20

0

0

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3

20

0

0

1

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0

4

20

0

0

2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Solvent control

1

20

0

0

1

0

0

0

0

0

1

0

0

0

0

0

0

0

0

0

2

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

3

20

0

0

2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4

20

0

0

2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.01

1

20

1

0

2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2

20

2

0

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3

20

1

0

3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4

20

0

0

2

0

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0.03

1

20

4

0

2

0

0

0

0

0

0

0

0

0

1

0

0

0

0

0

2

20

4

0

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3

20

3

0

3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4

20

3

0

2

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0

0.10

1

20

6

0

2

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0

2

20

5

0

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3

20

3

0

2

0

0

0

0

0

0

0

0

1

0

0

0

0

0

0

4

20

5

0

3

0

0

0

0

0

0

0

0

0

1

0

0

0

0

0

0.30

1

20

7

0

2

0

0

0

0

1

0

0

0

0

1

0

0

0

0

0

2

20

8

0

2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3

20

7

0

1

0

0

0

1

0

0

0

0

0

0

0

0

0

0

0

4

20

8

0

2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.00

1

20

14

0

2

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0

2

20

13

0

2

0

0

0

0

0

0

0

1

0

0

0

0

0

0

0

3

20

14

0

1

0

0

0

0

0

0

0

1

0

0

0

0

0

0

0

4

20

12

0

2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

               Key:mg- milligram;R – Replicate

 

(Continued) Stage wise mortality of fish- Definitive test

Concentration

(mg/L)

R

No. of eggs added at the start of test

Mortality

Cumulative Mortality

(Day 30)

Total No. of cumulative mortality

Mean % of

Cumulative Mortality

SD

Larva and Juveniles stage

Days

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Control

1

20

0

0

0

0

0

0

0

0

0

0

0

0

1

0

0

2

9

11.25

1.3

2

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

3

20

0

1

0

0

0

0

0

0

0

0

0

0

0

0

1

4

4

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2

Solvent control

1

20

0

0

0

0

0

0

0

0

0

0

0

0

0

1

0

3

9

11.25

0.5

2

20

0

0

0

1

0

0

0

0

0

0

0

0

0

0

0

2

3

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2

4

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2

0.01

1

20

0

0

0

0

0

0

0

0

0

0

0

0

1

0

0

4

18

22.5

1.3

2

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3

3

20

0

0

0

0

0

0

0

0

0

0

0

0

0

1

0

5

4

20

0

0

0

0

0

0

0

0

0

1

0

1

0

0

0

6

0.03

1

20

0

0

0

0

0

0

0

0

0

0

0

0

1

0

0

8

29

36.5

1.0

2

20

0

0

0

0

0

0

0

0

0

0

0

0

0

1

0

6

3

20

0

1

0

0

0

0

0

0

0

0

0

1

0

0

0

8

4

20

1

0

0

0

0

0

0

0

0

0

0

0

0

1

0

7

0.10

1

20

0

0

0

0

0

0

0

0

0

0

0

2

0

1

0

12

44

55

0.8

2

20

0

1

0

0

1

0

0

0

0

1

0

0

2

0

1

11

3

20

0

0

0

0

1

0

0

0

0

0

1

0

1

0

1

10

4

20

0

0

0

0

0

0

0

0

0

1

0

0

0

1

0

11

0.30

1

20

0

0

0

0

0

0

0

0

0

0

0

0

0

2

0

13

57

71.25

1.0

2

20

0

1

0

0

0

0

0

0

0

0

0

0

1

1

1

14

3

20

0

0

0

1

0

0

0

0

0

0

1

0

1

0

3

15

4

20

0

0

0

0

1

0

0

0

0

0

0

1

0

0

3

15

1.00

1

20

0

0

0

0

0

0

0

0

0

0

0

1

0

1

0

19

75

93.75

0.5

2

20

0

0

1

0

0

0

0

0

0

0

0

0

1

0

0

18

3

20

0

1

0

0

0

0

0

0

0

0

0

0

1

1

0

19

4

20

1

0

0

1

0

0

0

0

0

0

0

1

0

0

2

19

Key:mg- milligram;R – Replicate; SD – Standard Deviation

 


16               Endpoint values for Mortality, Hatching success and Fish larvae survival during the fish early-life stage test– Range finding test                                      

Concentration

mg/L

Mortality

Hatching success and fish larvae survival

Total (%)

Corrected#

Mean % of hatched larvae

Fertility reduction (%)

Mean % of surviving Juveniles

Surviving juveniles reduction (%)

(%)

Control

6.25

-

98.75

-

96.20

-

Solvent control

8.75

-

97.50

-

93.59

-

N-(4-((4-hydroxy-9, 10-dioxo-9,10-dihydroanthracen-1-yl) amino) phenyl)acetamide

0.01

22.50

15.07

95.00

2.56

84.21

10.18

0.10

57.50

57.50

66.25

32.05

64.15

31.57

1.00

90.00

87.10

27.50

71.79

31.82

66.06

10.00

100.00

100.00

0.00

100.00

-

-

20.00

100.00

100.00

0.00

100.00

-

-

#: Mortality corrected according to Abbott's formula:

Corrected mortality [%] = ((Mt - Mc) ÷ (100 - Mc)) × 100; Mt = Mortality treated, Mc = Mortality Solvent control

Validity criteria fulfilled:
yes
Remarks:
Water temp was maintained at 26 ± 1.5 °C throughout the exposure. The DO in all groups was between 68–78 % of saturation. Hatching rate in control is 93.42% and solvent control is 94.67. Larvae survival in control, solvent control was 95.0 and 93.75%.
Conclusions:
The median effects of test chemical on mortality, hatching success and fish larvae survival Danio rerio is 0.064±0.01, 0.34±0.047 and 0.31±0.06 mg/l respectively
Executive summary:

The aim of the study was todetermine the EC50, LOEC and NOECof test chemical on the growth and development of embryos and larvae of the freshwater fish species zebrafish (Danio rerio) in a Fish Early-Life Stage (ELS) Toxicity Test. The study was conducted according to the OECD guideline No. 210, Adopted 26thJuly, 2013.

The test was conducted with a semi-static design with renewal once 48 h.

Concentrated stock solutions and test media were analysed during the ELS test. Based on the range finding result the definitive test was conducted with five test concentrations of 0.01, 0.03, 0.10, 0.30 and 1.00 mg/L in terms of test chemical with a conversion factor of 3.2. Both control and solvent control were included in the test design. Each concentration was divided into four replicate with 20 eggs each and including the controls.

The cumulative mortality of the control and solvent control group at 30 days post-hatch was 11.25 and 11.25 %, whereas corrected cumulative mortality of embryos, larvae and juvenile fish after at the end of exposure to test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg /Lwas 12.68, 28.45, 49.30, 67.61and 92.96%,respectively.

Hatching success in the control and solvent control group was 93.42 and 94.67% respectively, satisfying the validation criterion for hatching success (70%),whereas in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas 91.18, 87.93, 67.92, 53.49and 25.00%,respectively. Fertility reduction in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas3.69, 7.12, 28.26, 43.50 and 73.59%,respectively in comparison with the solvent control group.The NOEC and LOEC for hatching success were determined as 0.01 and 0.03 mg/L, respectively.

Larval survival until Day 30 post-hatch in the control and solvent control group was 95.0 and 93.75% thereby exceeding and satisfying the validity criteria for post-hatch survival (>75%).whereas in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas85.0, 72.50, 66.25, 53.75 and 25.0%,respectively. Larval survival reduction in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas 9.33, 22.67, 29.33, 42.67 and 73.33%,respectively in comparison with the solvent control group.In terms of concentrations, the NOEC and LOEC for post-hatch larval survival untilDay 30 were both considered to be equal to or less than 0.01 mg/L.

For fish total lengths, the NOEC and LOEC determined on Day 30 post-hatch were 0.01 and 0.03mg/L, respectively. For fish dry weights, the NOEC and LOEC determined on Day 30 post-hatch were 0.01 and 0.03 mg/L, respectively.

The concentrations of test chemical was determined using a validated liquid chromatographic method. Samples of each fresh test substance concentration, control and solvent control collected at exposure initiation and at renewals, and samples of each spent test substance concentration, control and solvent control collected at each renewal and at exposure termination were chemically determined.

In fresh samples of the test substance concentrations, the determined concentrations of test chemical was between 99.3 and 101.7%, concentrations, respectively. The results confirm that the test substance concentrations were within the acceptability range. In spent samples of the test substance concentrations, the determined concentrations of test chemical was between 96.1 and 96.9% of the concentrations, respectively.

All validity criteria were satisfied during the test, therefore the test was considered to be valid.

Results:The effects of test chemical on mortality, hatching success and fish larvae survivalDanio rerioin the definitive test are summarized in Table below.

LC50mortality

0.064±0.01

EC50fertility

0.34±0.047

EC50surviving

0.31±0.06

NOECmortality

<0.01

NOECfertility

0.01

NOECsurviving

<0.01

LOECmortality

<0.01

LOECfertility

0.03

LOECsurviving

<0.01

Thus based on the results obtained chemical can be categorised as into chronic category 1 as per CLP classification criteria.

Description of key information

The aim of the study was todetermine the EC50, LOEC and NOECof test chemical on the growth and development of embryos and larvae of the freshwater fish species zebrafish (Danio rerio) in a Fish Early-Life Stage (ELS) Toxicity Test. The study was conducted according to the OECD guideline No. 210, Adopted 26thJuly, 2013.

The test was conducted with a semi-static design with renewal once 48 h.

Concentrated stock solutions and test media were analysed during the ELS test. Based on the range finding result the definitive test was conducted with five test concentrations of 0.01, 0.03, 0.10, 0.30 and 1.00 mg/L in terms of test chemical with a conversion factor of 3.2. Both control and solvent control were included in the test design. Each concentration was divided into four replicate with 20 eggs each and including the controls.

The cumulative mortality of the control and solvent control group at 30 days post-hatch was 11.25 and 11.25 %, whereas corrected cumulative mortality of embryos, larvae and juvenile fish after at the end of exposure to test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg /Lwas 12.68, 28.45, 49.30, 67.61and 92.96%,respectively.

Hatching success in the control and solvent control group was 93.42 and 94.67% respectively, satisfying the validation criterion for hatching success (70%),whereas in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas 91.18, 87.93, 67.92, 53.49and 25.00%,respectively. Fertility reduction in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas3.69, 7.12, 28.26, 43.50 and 73.59%,respectively in comparison with the solvent control group.The NOEC and LOEC for hatching success were determined as 0.01 and 0.03 mg/L, respectively.

Larval survival until Day 30 post-hatch in the control and solvent control group was 95.0 and 93.75% thereby exceeding and satisfying the validity criteria for post-hatch survival (>75%).whereas in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas85.0, 72.50, 66.25, 53.75 and 25.0%,respectively. Larval survival reduction in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas 9.33, 22.67, 29.33, 42.67 and 73.33%,respectively in comparison with the solvent control group.In terms of concentrations, the NOEC and LOEC for post-hatch larval survival untilDay 30 were both considered to be equal to or less than 0.01 mg/L.

For fish total lengths, the NOEC and LOEC determined on Day 30 post-hatch were 0.01 and 0.03mg/L, respectively. For fish dry weights, the NOEC and LOEC determined on Day 30 post-hatch were 0.01 and 0.03 mg/L, respectively.

The concentrations of test chemical was determined using a validated liquid chromatographic method. Samples of each fresh test substance concentration, control and solvent control collected at exposure initiation and at renewals, and samples of each spent test substance concentration, control and solvent control collected at each renewal and at exposure termination were chemically determined.

In fresh samples of the test substance concentrations, the determined concentrations of test chemical was between 99.3 and 101.7%, concentrations, respectively. The results confirm that the test substance concentrations were within the acceptability range. In spent samples of the test substance concentrations, the determined concentrations of test chemical was between 96.1 and 96.9% of the concentrations, respectively.

All validity criteria were satisfied during the test, therefore the test was considered to be valid.

Results:The effects of test chemical on mortality, hatching success and fish larvae survivalDanio rerioin the definitive test are summarized in Table below.

LC50mortality

0.064±0.01

EC50fertility

0.34±0.047

EC50surviving

0.31±0.06

NOECmortality

<0.01

NOECfertility

0.01

NOECsurviving

<0.01

LOECmortality

<0.01

LOECfertility

0.03

LOECsurviving

<0.01

Thus based on the results obtained chemical can be categorised as into chronic category 1 as per CLP classification criteria.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
0.01 mg/L

Additional information

The aim of the study was todetermine the EC50, LOEC and NOECof test chemical on the growth and development of embryos and larvae of the freshwater fish species zebrafish (Danio rerio) in a Fish Early-Life Stage (ELS) Toxicity Test. The study was conducted according to the OECD guideline No. 210, Adopted 26thJuly, 2013.

The test was conducted with a semi-static design with renewal once 48 h.

Concentrated stock solutions and test media were analysed during the ELS test. Based on the range finding result the definitive test was conducted with five test concentrations of 0.01, 0.03, 0.10, 0.30 and 1.00 mg/L in terms of test chemical with a conversion factor of 3.2. Both control and solvent control were included in the test design. Each concentration was divided into four replicate with 20 eggs each and including the controls.

The cumulative mortality of the control and solvent control group at 30 days post-hatch was 11.25 and 11.25 %, whereas corrected cumulative mortality of embryos, larvae and juvenile fish after at the end of exposure to test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg /Lwas 12.68, 28.45, 49.30, 67.61and 92.96%,respectively.

Hatching success in the control and solvent control group was 93.42 and 94.67% respectively, satisfying the validation criterion for hatching success (70%),whereas in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas 91.18, 87.93, 67.92, 53.49and 25.00%,respectively. Fertility reduction in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas3.69, 7.12, 28.26, 43.50 and 73.59%,respectively in comparison with the solvent control group.The NOEC and LOEC for hatching success were determined as 0.01 and 0.03 mg/L, respectively.

Larval survival until Day 30 post-hatch in the control and solvent control group was 95.0 and 93.75% thereby exceeding and satisfying the validity criteria for post-hatch survival (>75%).whereas in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas85.0, 72.50, 66.25, 53.75 and 25.0%,respectively. Larval survival reduction in the group treated with test chemical at concentrations of 0.01, 0.03, 0.10, 0.30and 1.00 mg/Lwas 9.33, 22.67, 29.33, 42.67 and 73.33%,respectively in comparison with the solvent control group.In terms of concentrations, the NOEC and LOEC for post-hatch larval survival untilDay 30 were both considered to be equal to or less than 0.01 mg/L.

For fish total lengths, the NOEC and LOEC determined on Day 30 post-hatch were 0.01 and 0.03mg/L, respectively. For fish dry weights, the NOEC and LOEC determined on Day 30 post-hatch were 0.01 and 0.03 mg/L, respectively.

The concentrations of test chemical was determined using a validated liquid chromatographic method. Samples of each fresh test substance concentration, control and solvent control collected at exposure initiation and at renewals, and samples of each spent test substance concentration, control and solvent control collected at each renewal and at exposure termination were chemically determined.

In fresh samples of the test substance concentrations, the determined concentrations of test chemical was between 99.3 and 101.7%, concentrations, respectively. The results confirm that the test substance concentrations were within the acceptability range. In spent samples of the test substance concentrations, the determined concentrations of test chemical was between 96.1 and 96.9% of the concentrations, respectively.

All validity criteria were satisfied during the test, therefore the test was considered to be valid.

Results:The effects of test chemical on mortality, hatching success and fish larvae survivalDanio rerioin the definitive test are summarized in Table below.

LC50mortality

0.064±0.01

EC50fertility

0.34±0.047

EC50surviving

0.31±0.06

NOECmortality

<0.01

NOECfertility

0.01

NOECsurviving

<0.01

LOECmortality

<0.01

LOECfertility

0.03

LOECsurviving

<0.01

Thus based on the results obtained chemical can be categorised as into chronic category 1 as per CLP classification criteria.