Cd<sup>2+</sup>和Hg<sup>2+</sup>对波纹龙虾的急性毒性

doi:10.16378/j.cnki.1003-1111.2020.03.016

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Abstract Acute toxicity of heavy metals Cd²⁺ and Hg²⁺ prepared from cadmium chloride and mercury chloride to scalloped spiny lobster Panulirus homarus with body weight of 49.10—52.10 g was tested in a 0.5 m³ round glass steel bucket at water temperature of 28.0—29.0 °C by a toxicological method. The median lethal concentration (LC₅₀) and safety concentrations (SC) of Cd²⁺ and Hg²⁺ were obtained by linear interpolation based on the relationship between mortality rates of shrimp and heavy metal doses. The LC₅₀ value of Cd²⁺ in scalloped spiny lobster was found to be 2.5169 mg/L at 24 h, 1.3378 mg/L at 48 h, 1.0445 mg/L at 72 h and 0.9500 mg/L at 96 h, with the corresponding SC level of 0.0095 mg/L. The LC₅₀ of Hg²⁺ in spiny lobster were 0.0560 mg/L at 24 h, 0.0333 mg/L at 48 h, 0.0246 mg/L at 72 and 0.0227 mg/L at 96 h, with SC of 0.000227 mg/L, indicating that metal Hg²⁺ was more toxic to scalloped spiny lobster than that of metal Cd²⁺.

Key words： Panulirus homarus heavy metal toxicity LC₅₀ safety concentration

Received: 29 August 2018

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	Articles by authors
	LIANG Huafang
	ZHUO Hongbiao
	LIAO Yongyan
	HONG Guixin
	WEN Chongqing

Cite this article:

LIANG Huafang,ZHUO Hongbiao,LIAO Yongyan, et al. Acute Toxicity of Cd²⁺ and Hg²⁺ to Salloped Spiny Lobster Panulirus homarus[J]. Fisheries Science, 2020, 39(3): 420-424.

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https://www.shchkx.com/EN/10.16378/j.cnki.1003-1111.2020.03.016 OR https://www.shchkx.com/EN/Y2020/V39/I3/420

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