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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
long-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: well documented and performed according to scientific standards.

Data source

Reference
Reference Type:
publication
Title:
Acute and chronic effects of heavy metals and cyanide on Mysidopsis bahia (Crustacea: Mysidadea)
Author:
Lussier SM, Gentile JH, Walker J
Year:
1985
Bibliographic source:
Aquatic toxicology 7, 25-35

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
long-term saltwater toxicity test to crustacean
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Assessment was based on As (III)

Sampling and analysis

Analytical monitoring:
yes

Test organisms

Test organisms (species):
Americamysis bahia (previous name: Mysidopsis bahia)

Study design

Test type:
flow-through
Water media type:
saltwater
Total exposure duration:
51 d

Test conditions

Test temperature:
20-25°C
pH:
7.8-8.2
Salinity:
30 ppt

Results and discussion

Effect concentrations
Duration:
51 d
Dose descriptor:
NOEC
Effect conc.:
0.631 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
dissolved
Basis for effect:
mortality
Remarks:
reproduction

Applicant's summary and conclusion

Conclusions:
The 51-d NOEC for mortality of the shrimp Americamysis bahia is 0.631 mg As/L, and this NOEC value is considered for the Chemicals Safety Assessment.