期刊
BULLETIN FRANCAIS DE LA PECHE ET DE LA PISCICULTURE
卷 -, 期 376-77, 页码 705-713出版社
CONSEIL SUPERIEUR DE LA PECHE
DOI: 10.1051/kmae:2005027
关键词
nitrite; crayfish; chlorides; water quality; toxicity test
类别
Toxicity of sodium nitrite for the spiny-cheek crayfish (Orconectes limosus) was assessed in relation to the concentration of chlorides diluted in water. Results of the tests confirmed a favourable effect of chloride content in water on the tolerance of spiny-cheek crayfish to nitrites. The 96hLC(50) value of 4.8 mg l(-1), 17.7 mg l(-1), 34.7 mg l(-1), 50.5 mg l(-1), 74.4 mg l(-1), and 96.6 mg l(-1) N-NO2- found out in individual tests corresponded, respectively to a chloride content of 11, 40, 100, 200, 300 and 400 mg l(-1) Cl- in diluting water. Linear relationship of the 96hLC(50) values on chloride concentration (y = 0.23 x + 7) was proven statistically (R = 0.995).
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