00000nam 2200000za 4500 9.611292 CaOODSP 20250502094421 ta 150406|1994||||xxc||||| f|0| 0 eng d 0-662-22367-5 1192-3571 CaOODSP eng n-cn--- R71-49/3-38E Northern River Basins Study (Canada)‏. Aquatic macroinvertebrate identifications : on under-ice samples, Athabasca River, February and March, 1993 / by R. D. Saunders and Emil Dratnal. Edmonton - Alberta : Northern River Basins Study 1994. 99p. in various pagings. : references, tables ; 28 cm. Northern River Basins Study project report 1192-3571 No. 38 "Benthic invertebrates from ninety samples previously taken from the Athabasca River in February and March 1993 were sorted, identified and counted. The wet weight for each identified taxon was measured, and the incidence of parasitism in immature Chironomidae by mermithid nematodes was recorded. In addition, immature mayflies, stoneflies and caddisflies representative of the fauna that was sampled for tissue contaminant analyses were identified."--Report summary. Benthic invertebrates from ninety samples previously taken from the Athabasca River in February and March 1993 were sorted, identified and counted. The wet weight for each identified taxon was measured, and the incidence of parasitism in immature Chironomidae by mermithid nematodes was recorded. In addition, immature mayflies, stoneflies and caddisflies representative of the fauna that was sampled for tissue contaminant analyses were identified.--Report summary Ring binding Water pollution gcpds Water quality gcpds Saunders, R. D. Dratnal, Emil Aquatic macroinvertebrate identifications on under-ice samples, Athabasca River, February and March, 1993 / (CaOODSP)9.950754 Northern River Basins Study project report, 1192-3571 No. 38 (CaOODSP)9.514881