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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
long-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
other information
Study period:
March 1993
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well documented GLP study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1993
Report Date:
1993

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 211 (Daphnia magna Reproduction Test)
Version / remarks:
(formerly, this guideline was OECD202, part b)
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
semi-static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
21 d

Results and discussion

Effect concentrations
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
300 mg/L
Nominal / measured:
meas. (geom. mean)
Conc. based on:
test mat.
Basis for effect:
mortality

Any other information on results incl. tables

The NOEC for mortalöity was 300 mg/L, the LOECwas 1000 mg/L

The NOEC for reporduction was >1000 mg/L.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The NOEC for chronic exposure of Daphnia magna to Tamip monoamid (ZK 39.211) over 21 days was 300 mg/L (mortality), the LOEC was 1000 mg/L.
Executive summary:

10 daphids were used for each of the 4 test concentrations and 10 for the control group. The daphnids were exposed to the test compound (30 -1000 mg/L) over 21 days. The test solution was changed 3 times per week.

The measured concentrations were always >90% of the nominal. Mean number of off-spring varied between 95 (control group) and 137 (second highest concentration), which was not substance related. Survival of parent animals was 9 -10 at all concentrations including the controls, except at the highest concentration, where it was only 7. Therefore, the NOEC for mortality was 300 mg/L, the LOEC was 1000 mg/L. For reproduction the NOEC was > 1000 mg/L.