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Acute Toxicity of Divalent Mercury Ion to Anguilla japonica from Seawater and Freshwater Aquaculture and Its Effects on Tissue Structure

Author

Listed:
  • Yuanqiang Tang

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Yunguo Liu

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Tao Zhang

    (Meijiang County Aquatic Technology Promotion Station, Meizhou 514000, China)

  • Jiang Li

    (School of Architecture and Art, Central South University, Changsha 410082, China)

  • Xiaohua Wang

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
    School of Architecture and Urban Planning, Hunan City University, Yiyang 413000, China)

  • Wei Zhang

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Guangming Zeng

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Shaobo Liu

    (School of Architecture and Art, Central South University, Changsha 410082, China)

  • Lei Guan

    (Meizhou Fisheries Research Institute, Meizhou 514000, China)

Abstract

The acute toxicity of divalent mercury ion to Anguilla japonica from seawater and freshwater aquaculture was assessed. In particular, the effects of toxicity on the microstructures of the gill and liver tissues were examined using the hydrostatic method, without feeding, at a water temperature of 20 °C. The median lethal concentrations (LC 50 ) of divalent mercury ion to fishes in seawater and freshwater over various durations were: 24 h = 1.637 and 1.428 mg/L; 48 h = 1.562 and 1.377 mg/L; 72 h = 1.530 and 1.284 mg/L; and 96 h = 1.442 and 1.228 mg/L. The safety mass concentrations were 0.1442 and 0.01228 mg/L, respectively. After exposure to divalent mercury ion, adhesion between the gill lamellae and massive cellular disintegration and necrotic shedding were observed in the gill tissue sections. The liver tissues underwent hyperemia and swelling, with the appearance of blood spots, swelling of the hepatocyte mitochondria, dilation of the rough endoplasmic reticulum, and intercellular inflation.

Suggested Citation

  • Yuanqiang Tang & Yunguo Liu & Tao Zhang & Jiang Li & Xiaohua Wang & Wei Zhang & Guangming Zeng & Shaobo Liu & Lei Guan, 2019. "Acute Toxicity of Divalent Mercury Ion to Anguilla japonica from Seawater and Freshwater Aquaculture and Its Effects on Tissue Structure," IJERPH, MDPI, vol. 16(11), pages 1-12, June.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:11:p:1965-:d:236706
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    References listed on IDEAS

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    1. Wei Zhang & Yun-guo Liu & Xiao-fei Tan & Guang-ming Zeng & Ji-lai Gong & Cui Lai & Qiu-ya Niu & Yuan-qiang Tang, 2019. "Enhancement of Detoxification of Petroleum Hydrocarbons and Heavy Metals in Oil-Contaminated Soil by Using Glycine-β-Cyclodextrin," IJERPH, MDPI, vol. 16(7), pages 1-11, March.
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    Cited by:

    1. Huiru Li & Shaohua Wu & Chunping Yang, 2020. "Performance and Biomass Characteristics of SB R s Treating High-Salinity Wastewater at Presence of Anionic Surfactants," IJERPH, MDPI, vol. 17(8), pages 1-12, April.

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