A simple indoor artificial stream system designed to study the effects of toxicant pulses on aquatic organisms |
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| Affiliation: | 1. Department of Animal and Plant Sciences, The University of Sheffield, Western Bank, Sheffield S10 2TN, U.K.;2. Department of Civil and Structural Engineering, The University of Sheffield, Mappin Street, Sheffield S1 3JD, U.K.;1. IQUIBICEN-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Intendente Güiraldes 2160 CABA, Argentina;2. Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Intendente Güiraldes 2160 CABA, Argentina;3. Laboratorio de Ecotoxicología Acuática (INBIOMA, CONICET-UNCo), Junín de los Andes, Neuquén, Argentina;1. CAS Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;2. Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada;1. School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada;2. Syngenta Crop Protection LLC, Greensboro, NC, USA;3. Waterborne Environmental Inc., Champaign, IL, USA;4. Department of Environment and Geography, University of Manitoba, Winnipeg, Manitoba, Canada;1. University of Białystok, Institute of Biology, Department of Hydrobiology, 15-950 Białystok, Świerkowa 20B, Poland;2. University of Białystok, Institute of Biology, Department of Microbiology, 15-950 Białystok, Świerkowa 20B, Poland;1. Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;2. Department of Entomology, University of Georgia, Athens, GA 30602, USA;5. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, PR China |
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| Abstract: | Intermittent discharges of effluents are a common cause of reduced water quality. There have, however, been few studies of the effects of such discharges on the flora and fauna of receiving waters. A simple indoor artificial stream system designed to study the effects of toxicant pulses on aquatic organisms ranging from macroinvertebrates to small fish has been constructed and is described. A computer-controlled toxicant input system has been developed that is capable of generating and delivering toxicant pulses of varying shape, magnitude, amplitude and duration. Comparisons of predicted and actual toxicant concentrations have been carried out and hydraulic and toxicant conditions were found to be reproducible. Sample results are given of the effect of short-term pulses of cadmium on the amphipod Gammarus pulex. Possible future developments of the system are discussed. |
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