Search Results for: Metal carbides
of copper, zinc, lead and cadmium resulting from leakage from old mine deposits. species richness at undisturbed sites was positively related to the size of the catchment, ph, channel width, calcium concentration and the proportion of deciduous trees in the riparian zone. in streams with elevated metal
macroinvertebrates, mayflies, stoneflies and combined ept (ephemeroptera, plecoptera and trichoptera), but not for that of trichoptera nor total abundance or biomass. copper and zinc were those metals showing strongest negative associations with richness. some taxa, common at undisturbed sites, were missing at metal-polluted...
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