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Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1980
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
publication
Title:
Survival, size and emergence of pink salmon, Oncorhynchus gorbuscha, alevins after short- and long-term exposure to ammonia
Author:
Rice S D and Bailey J E
Year:
1980
Bibliographic source:
Fishery Bulletin, 78, No. 3, 641–648.

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Study performed before EU/OECD protocol establishment
GLP compliance:
no
Remarks:
Study performed before EU/OECD protocol establishment

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
no data
Specific details on test material used for the study:
Details on properties of test surrogate or analogue material (migrated information):
no data

Sampling and analysis

Analytical monitoring:
not specified
Details on sampling:
no data

Test solutions

Vehicle:
yes
Details on test solutions:
Fresh water static

Test organisms

Test organisms (species):
Oncorhynchus gorbuscha
Details on test organisms:
no data

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
96 h
Post exposure observation period:
no data

Test conditions

Hardness:
no data
Test temperature:
no data
pH:
no data
Dissolved oxygen:
no data
Salinity:
no data
Nominal and measured concentrations:
no data
Details on test conditions:
no data
Reference substance (positive control):
no

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
0.068 mg/L
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
mortality

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
Data are particularly plentiful for fish and one semi-field study with freshwater organisms is also available. Regarding acute toxicity data for freshwater organisms, fish are the most sensitive taxon to acute exposure with the lowest valid acute LC50 value available being 0.068 mg NH3/L for Oncorhynchus gorbuscha (pink salmon) alevins exposed to ammonia for a 96-hour period
Executive summary:

Data are particularly plentiful for fish and one semi-field study with freshwater organisms is also available. Regarding acute toxicity data for freshwater organisms, fish are the most sensitive taxon to acute exposure with the lowest valid acute LC50 value available being 0.068 mg NH3/L forOncorhynchus gorbuscha(pink salmon) alevins exposed to ammonia for a 96-hour period