00000nam 2200000za 4500 9.613152 CaOODSP 20250926155303 ta 150406|1996||||xxc||||| f|0| 0 eng d 0-662-24798-1 1192-3571 CaOODSP eng n-cn--- R71-49/3-135E Northern River Basins Study (Canada)‏. Ecotoxicology of suspended and bottom sediments : Athabasca, Smoky and Peace rivers, June, 1995 / by Evan Dobson et al. Edmonton - Alberta : Northern River Basins Study 1996. 47p. in various pagings. : graphs, references, tables ; 28 cm. Northern River Basins Study project report 1192-3571 No. 135 "The objectives of this project were to (1) re-examine sediment toxicity at sites sampled previously on the Athabasca River, including the oil sands area, and (2) conduct toxicity testing on a number of additional collection sites on the Athabasca, Smoky and Peace rivers. Suspended and bottom sediment samples were tested using four species of freshwater benthic invertebrates in chronic exposure studies. The endpoints that were measured included survival, growth (amphipod, chironomid and mayfly) and reproduction (oligochaete worm). The test results were compared with standard reference sediment samples from Long Point Marsh, Ontario, for biological quality assurance."--Study perspective. Issued also in electronic format. The objectives of this project were to (1) re-examine sediment toxicity at sites sampled previously on the Athabasca River, including the oil sands area, and (2) conduct toxicity testing on a number of additional collection sites on the Athabasca, Smoky and Peace rivers. Suspended and bottom sediment samples were tested using four species of freshwater benthic invertebrates in chronic exposure studies. The endpoints that were measured included survival, growth (amphipod, chironomid and mayfly) and reproduction (oligochaete worm). The test results were compared with standard reference sediment samples from Long Point Marsh, Ontario, for biological quality assurance.--Study perspective Ring binding 96-33 1996-08-16 Marine biology gcpds Dobson, Evan Ecotoxicology of suspended and bottom sediments : (CaOODSP)9.955850 Northern River Basins Study project report, 1192-3571 No. 135 (CaOODSP)9.514881 Project 2326-E1