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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Ir. L.M. Bouwman (2004) performed an acute toxicity study with the substance in Cyprinus carpio according to ISO Guideline 7346 -1, EU Method C.1 and OECD Guideline 203. An 96h-EC50 of > 100 mg/L for the endpoint mortality and a 96h-NOEC of 100 mg/L for other clinical effects (not further specified) were observed. A supporting study (Li et al., 2011) confirmed the findings.

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Additional information

Ir. L.M. Bouwman (2004) performed an acute toxicity study with the substance in Cyprinus carpio. Following concentrations were tested in range finding and final test.

Range finding test:

0 hours: 10 mg/L nominal -> analysed concentration range: 9.52 - 9.82 mg/L

24 hours: 10 mg/L nominal - > analysed concentration range: 9.56 - 9.68 mg/L

96 hours: 10 mg/L nominal -> analysed concentration range: 9.58 - 10.2 mg/L

Final test:

0 hours: 100 mg/L nominal -> analysed concentration range: 104-107 mg/L

96 hours: 100 mg/L nominal -> analysed concentration range: 103 - 108 mg/L

Under the conditions of the test, XTJ 568 induced no mortality or any other clinical effects in carp at 100 mg/L (Ir. L.M. Bouwman (2004)). The 96h-LC50 was above 100 mg/L.

In a supporting study (Li et al., 2011), the 96-h LC50 for zebra fish (Danio rerio) was concluded to be > 120 mg/L (nominal test concentration) as no mortalities were observed at this concentration level.