00000nam 2200000zi 4500 9.874617 CaOODSP 20241203113650 m o d f cr bn||||||||| 190610e19900623onca ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/90-38E-PDF Reynoldson, Trefor B., author. A sediment bioassay using the tubificid oligochaete worm tubifex tubifex / Trefor B. Reynoldson, Sherri P. Thompson and Jennifer L. Barnsey. Burlington, Ontario : Lakes Research Branch, National Water Research Institute, Canada Centre for Inland Waters, June 23, 1990. 1 online resource (32 pages, 14 unnumbered pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; no. 90-38 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 25-30). "A new technique for using the tubificid oligochaete Tubifex tubifex Muller as a standard sediment bioassay is described. The various factors affecting quality assurance and control have been examined such as, the number of replicates, temperature, animal size, organic content, density, duration and repeatability. The test ls simple and straightforward and can be done with readily available and inexpensive equipment, It utilizes reproduction, the most ecologically relevant and sensitive life stage, as an end point and has been shown both in the laboratory and in a field study to be repeatable and discriminatory. The technique can be recommended as part of a suite of assays in any sediment assessment"--Abstract. Includes management perspective and abstract in French. gccst Sediments gccst Analysis Thompson, Sherri P., author. Barnsey, Jennifer L., author. Canada. Environment Canada. National Water Research Institute (Canada). Lakes Research Branch. Canada Centre for Inland Waters. NWRI contribution ; no. 90-38. (CaOODSP)9.844121 PDF 3.73 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-90-38-eng.pdf