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Since mudsnails are able to avoid contaminated sediment and that the contaminants in sediment are not uniformly distributed, the mudsnail Peringia ulvae was exposed to cadmium (Cd) spiked sediment and assessed for avoidance response in a heterogeneous contamination scenario. Four Cd concentrations were prepared and disposed in patches on dishes, which were divided in 25 fields (six fields for each...
This study tested the hypothesis that the snail Hydrobia ulvae will recognise differences in the contamination levels of sediment and avoid the more contaminated zones. Instead of testing avoidance behaviour in a two-compartment system, a linear contamination gradient has been devised in which several zones containing sediment with different contamination levels could be “chosen”. A sediment of known...
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