作者: Jerry L. Farris , John H. Van Hassel , Scott E. Belanger , Donald S. Cherry , John Cairns
关键词: Ecology 、 Effluent 、 Mollusca 、 Biomonitoring 、 Water quality 、 Environmental chemistry 、 Bioassay 、 Biology 、 Corbicula 、 Water pollution 、 Bivalvia 、 Health, Toxicology and Mutagenesis
摘要: Rigorous testing schemes in field-located artificial streams and in-stream monitoring provided evidence for use of Corbicula cellulolytic activity as a highly sensitive efficient approach to effluent assessment. Cellulolytic (exo- endocellulase) the Asiatic clam, sp., determined 30-d, stream exposures at New River, Virginia single components power plant effluents (copper [Cu] zinc [Zn] separately) was compared with responses caged clams from within an impacted area Clinch below effluents. were then conventional biomonitoring (Hester-Dendy macroinvertebrate community structure), water quality laboratory bioassays. Clam enzyme significantly reduced 10 20 d (α = 0.05) 16 87 μg Cu Zn/L, respectively, streams. stations outfalls (metal concentrations 47–78 Zn/L 80–345 Cu/L) levels low 9 52% upstream levels. Reduction more after 14 than reduction diversity assemblages 28 d. Bioassay long 30 needed provide toxicity data comparable impairment seen early