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Effects of Selected Chemicals on Movement,Growth and Survival of Certain Aquatic Animal Life.

机译:精选化学品对某些水生动物生命运动,生长和存活的影响。

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Since previous experiments with the protozoan, Tetrahymena pyriformis suggested that cations of heavy metals, (e.g.,cadmium,in amounts of one part in 1million parts of water) which often pollute industrial wastes act on the respiratory mechanisms which generate and store energy in the form of ademosine triphosphate (ATP),research was conducted to determine if certain substances (e.g.,other metals) naturally present in freshwaters would counteract the toxic effects of the pollutants. Experiments showed calcium will offset the toxic effects of cadmium,somewhat if present in equal amounts. Other experiments showed that iron will completely alleviate toxic effects of copper when the two are present in equal amounts. Iron also proved to be stimulatory to growth. Experiments were also done with movement and survival of protozoa (e.g., Tetrahymena pyriformis and Paramecium caudatum).

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