Pyatt A J, Pyatt F B, Pentreath V W
3 Palm Avenue, Paramatta Park, Cairns, Queensland 4870, Australia.
Invert Neurosci. 2002 Apr;4(3):135-40. doi: 10.1007/s10158-001-0015-0. Epub 2002 Jan 30.
The effects of lead (5 or 10 ppm) on the survival of the freshwater snail Lymnaea stagnalis (L.) collected from lead contaminated or uncontaminated environments were evaluated under controlled laboratory conditions. The animals from the contaminated environment had significantly greater survivability than those from the unpolluted environment to subsequent acute (up to 24 days) exposure to lead. Acute (72 h) exposure to lead inhibited several behavioural activities including locomotion, feeding, tentacle extension and emergence from the shell. Lead bioaccumulated in the snail tissues, especially the buccal mass and stomach. The freshwater snail provides a valuable system for studying the bioaccumulation and development of tolerance to environmental lead.
在可控的实验室条件下，评估了铅（5或10 ppm）对采自铅污染或未污染环境的淡水蜗牛静水椎实螺（Lymnaea stagnalis (L.)）存活情况的影响。来自污染环境的动物在随后急性暴露于铅（长达24天）时，其生存能力明显高于来自未污染环境的动物。急性暴露于铅（72小时）会抑制包括运动、进食、触角伸展和出壳等多种行为活动。铅在蜗牛组织中生物累积，尤其是在口腔团和胃中。淡水蜗牛为研究环境铅的生物累积和耐受性发展提供了一个有价值的系统。
