00000nam 2200000za 4500 9.858061 CaOODSP 20241203113643 cr ||||||||||| 180622s1998 oncadbo#o f000 0 eng d print edition 0662270142 CaOODSP eng eng fre n-cn-nk CW69-5/323E-PDF An evaluation of level ditches as waterfowl brood habitat in the Saint John River floodplain [electronic resource] / Alan R. Hanson ... [et al.]. [Ottawa] : Canadian Wildlife Service, 1998. ii, 27, [16] p. : ill., maps, charts (some col.) Canadian Wildlife technical report series ; no. 323 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (p. 18-21). "Level ditching has been suggested as a method to provide waterfowl brood-rearing habitat along floodplains. Level ditches were excavated in 1988 and 1989 at three sites along the Saint John River near Fredericton, New Brunswick. Level ditches were designed to be sinuous in shape, 6 m wide, with a 2:1 slope on the sides of the ditch, with the centre 2.5 m section being 0.9 min. depth. We quantified the use of level ditches along the Saint John River floodplain by waterfowl broods during 1990-1995. The suitability of the habitat was evaluated in relation to water chemistry, algal biomass, vegetative community and invertebrate abundance"--Abstract, p. i. Issued also in print format. Includes abstract in French. gccst Aquatic birds gccst Nature conservation Hanson, Alan R. Canada. Environment Canada. Canadian Wildlife Service. An evaluation of level ditches at waterfowl brood habitat in the Saint John River floodplain / (CaOODSP)9.614461 Technical report series (Canadian Wildlife Service) no. 323 (CaOODSP)9.504438 PDF 4.07 MB https://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-323-eng.pdf