00000nam 2200000za 4500 9.614461 CaOODSP 20240527135427 ta 150406s1998||||xxc||||| f|0| 0 eng d 0-662-27014-2 0831-6481 CaOODSP eng n-cn--- CW69-5/323E Canadian Wildlife Service. An evaluation of level ditches at waterfowl brood habitat in the Saint John River floodplain / by Alan R. Hanson et al. Issued by the Atlantic Region. Ottawa - Ontario : Environment Canada. 1998. 46p. in various pagings. : figs., graphs, references, tables ; 28 cm. Technical report series 0831-6481 323 "The purpose of this study was to quantity use of level ditches along the Saint John River floodplain by waterfowl broods and to relate this use to the productivity of the ditches as measured by water chemistry, algal biomass and invertebrate abundance."--Page 4. The purpose of this study was to quantity use of level ditches along the Saint John River floodplain by waterfowl broods and to relate this use to the productivity of the ditches as measured by water chemistry, algal biomass and invertebrate abundance.--Page 4 Ring binding 99-01 1999-01-08 Birds gcpds Wildlife gcpds Hanson, Alan R. An evaluation of level ditches as waterfowl brood habitat in the Saint John River floodplain (CaOODSP)9.858061 Technical report series, 0831-6481 323 (CaOODSP)9.514492