Coughtrey P J, Martin M H
Department of Botany, The University, BS8 1UG, Bristol, England.
Oecologia. 1977 Mar;27(1):65-74. doi: 10.1007/BF00345685.
The occurrence of lead, zinc, cadmium, and copper in individuals of Helix aspersa from two sites of varying degrees of contamination was studied. Zinc, cadmium, and copper were shown to increase in a linear fashion with animal weight. The rate of uptake for zinc and cadmium in particular was significantly greater at the more contaminated site. Statistical analysis of the data, using correlation and regression techniques provided information on apparent intermetallic effects.It is concluded that because metal uptake and body weight show a positive linear relationship only the use of animals of similar weight and/or size can be used for monitoring purposes. Even then, different patterns of uptake into different organs and interactions between metal uptakes are such as to seriously question the use of Helix, and other molluscs, for monitoring purposes unless specific organs from comparably sized and/or aged animals are used.
研究了来自两个不同污染程度地点的散大蜗牛个体中铅、锌、镉和铜的存在情况。锌、镉和铜的含量随动物体重呈线性增加。特别是在污染更严重的地点，锌和镉的吸收速率明显更高。使用相关性和回归技术对数据进行统计分析，提供了关于明显金属间效应的信息。得出的结论是，由于金属吸收与体重呈正线性关系，因此仅可使用体重和/或大小相似的动物进行监测。即便如此，不同器官的不同吸收模式以及金属吸收之间的相互作用，使得严重质疑使用蜗牛及其他软体动物进行监测的可行性，除非使用来自大小和/或年龄相当的动物的特定器官。
