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KMID : 1156220190450030285
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Journal of Environmental Health Sciences
2019 Volume.45 No. 3 p.285 ~ p.294
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Ring Test as Acute Toxicity Test with Korean Freshwater Shrimp, Neocaridina denticulata using 3,4-Dichloroaniline
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Shin Yu-Jin
Lee Jae-Woo
Kim Ji-Eun
Cho Jae-Gu
Kim Ja-Hyun
Kang Min-Ho
Kim Kyung-Tae
Kim Pil-Je
Park Kyung-Hwa
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Abstract
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Objectives: For suitable risk management of the domestic aquatic environment, it is necessary to conduct toxicity tests using species native to Korea. In the present study, we performed toxicity ring tests using endemic freshwater arthropoda Neocaridina denticulata and evaluated its validity and reproducibility as an international standard test species.
Methods: To evaluate the sensitivity levels of N. denticulata to hazardous chemicals, toxicity values for several chemicals were compared with other standard test species. Intra- and inter-laboratory acute toxicity tests were performed both within a single laboratory and among four laboratories respectively using 3,4-Dichloroaniline, which is generally used as a reference test substance in fish toxicity tests. In addition, intra- and inter-laboratory coefficient of variations (CVs) were calculated to evaluate reproducibility based on the estimated toxicity values.
Results: The sensitivity of N. denticulata to several chemicals was found to be similar with D. manga, indicating that the species is valid as a test species. The CVs of the intra- and inter-laboratory tests were 22.946% with four qualified runs and 8.828% among the four laboratories, respectively.
Conclusions: N. denticulata serves in an important role in the food chain of Korean aquatic ecosystems and also inhabits several other Asian countries. Since the validity and reproducibility of the species were confirmed as a toxicity test species in this study, further efforts are needed to establish N. denticulata as the international standard test species for the appropriate risk assessment of aquatic ecosystems at home and abroad.
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KEYWORD
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Aquatic toxicity, Korean dominant species, Neocaridina denticulata, Ring test
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