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Ecotoxicological information

Long-term toxicity to fish

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Description of key information

A 10-day NOEC of 5.76 mg/l and a 28-day MATC of 14.85 mg/l are reported for the larvae and fry of Jordanella floridae.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
5.76 mg/L

Additional information

A study similar to early life stage (ELS) test was available (Smith et al. 1991).  The study had a flow-through system, the concentrations were analysed 5 days per week throughout 28-day exposure period.  Two stages of American flagfish (Jordanella floridae) were used in simultaneous flow-through exposures: embryo-larval fish (hatching success and 10-day larval survival) and fry fish (survival and growth over 28 days).  The lowest NOEC was for 10-day larval survival, at 5.76 mg/l and this value was used in the assessment.  Another study was available from Loekle et al. (1983), but this study was not considered reliable as long time periods occurred between solution renewals, the concentrations were not monitored and the endpoint was not clearly defined.