メダカの胚および稚魚に対するカドミウムの効果

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概要

• 論文の詳細を見る

• Effects of cadmium on survival, hatchability, and histological characters of the brain, and uptake of 109-cadmium by eggs were studied using embryos or fry of the medaka, Oryzias latipes. When the embryos and the fry were exposed to cadmium at a concentration of 0.06mg/l, survival time was shortened. With increasing concentration of cadmium, survival time decreased even more. The fry were more sensitive to cadmium than embryos or adult fish. Hatchability was also decreased at a dose of 0.06mg/l cadmium, and almost no fry were hatched when exposed to 0.61mg/l. Pycnoses were seen during 1-4 days after hatch in the brains of fry exposed to a particularly high concentration of cadmium.

• 1978-06-25

著者

• 青木 一子

  放射線医学総合研究所養成訓練部

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