Evaluation of Ecological Toxicity of Antibacterials in Mysid Crustacea (<i>Americamysis bahia</i>)

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  • Miura Sonoko
    Ecogenomics, Inc. Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
  • Uchida Masaya
    Ecogenomics, Inc. Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
  • Hirano Masashi
    Center for Marine Environmental Studies (CMES), Ehime University
  • Yamauchi Ryoko
    Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
  • Yoshidu Remi
    Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
  • Kusano Teruhiko
    Ecogenomics, Inc.
  • Koga Minoru
    Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
  • Arizono Koji
    Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto

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Other Title
  • 海産甲殻類アミを用いた抗菌剤トリクロサンおよびトリクロカルバンの生態影響評価
  • カイサン コウカクルイ アミ オ モチイタ コウキンザイ トリクロサン オヨビ トリクロカルバン ノ セイタイ エイキョウ ヒョウカ

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Abstract

 Triclosan (TCS) and Trichlorocarban (TCC) are widely used as antibacterial agent in liquid toothpaste, soap, shampoo, cosmetics and so on. In this study, we evaluated potential biological effects of TCS and TCC on mysid (Americamysis bahia). Survival and growth test was performed from a procedure of the USEPA. The 96h-LC50 values were 70 µg/L in TCS, and 12 µg/L in TCC, respectively. The growth and maturity examination demonstrated significant reduction in each measurement item at extremely lower concentrations than LC50 levels of TCS and TCC. The results of this study indicate that subchronic exposures to TCS and TCC affect growth and reproductive fitness of mysid.

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