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The Effect of the Treated Acid Mine Drainage on Stream Macroinvertebrates and Periphytic Algae

其他書名	An in Situ Mesocosm Experiment
出版	Limnotek Research and Development Incorporated, 1990
URL	http://books.google.com.hk/books?id=3yapwgEACAAJ&hl=&source=gbs_api

註釋A stream `mesocosm' was used to support an experiment designed to examine the effect of additions of treated acid mine drainage (AMD) on the composition and abundance of periphytic algae and aquatic invertebrates downstream of AMD discharge from the Equity mine site. An apparatus consisting of 10 flow-through troughs, suitable for invertebrate and periphytic algal colonization and growth was installed and tested at the site. After 3 weeks of running stream water without AMD through all troughs to allow colonization by stream invertebrates, additions of treated AMD at an operational dilution rate of 10% to 5 randomly allocated troughs was started and continued for 3 additional weeks. Water, algal, and insect (drift, adult emergence, and benthos) samples were collected from the 5 treated and 5 untreated troughs during and at the end of the 6-week experiment for examination of the effects of the AMD addition on indices of invertebrate abundance and algal growth.