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1979

Rogers, W., Lake, W.

Volume 2 In order to conduct oil sands mining operations in the surface mining region of the Athabasca oil sands deposits, most regions require depressurization of the basal sandstone formations. The groundwater produced by depressurization operations is of poor enough quality to be toxic to...

1976

Lake, W. H.

When evaluating this data, lethality (i.e. death of the organism) is the symptom being observed. Acutely lethal refers to a sample killing 50% of a population after 96 hours exposure. 1. The dike filter drainage was found to be acutely toxic to both rainbow trout and brook sticklebacks. The...

1979-01-01

Bond, W. A., Machniak, K.

The study of the fish fauna in the Muskeg River commenced in 1976 with the general objective of describing the baseline states of this resource in the watershed and providing a quantitative estimate of the significance of the Muskeg River to the fisheries of the Athabasca River system. The work...

1979-01-01

Bond, W. A., Machniak, K.

A study of the fish fauna of the Steepbank River was conducted during the open water period, 1977. Utilization of the Steepbank system by migrant fish from the Athabasca River was assessed by means of a two-way counting fence. Fish movements were monitored from 25 April to 29 May, and from 12...

1980

Walder, G. L., Sekerak, A. D.

This report summarizes and compares the physical characteristics of nine streams within five watersheds (Firebag, Muskeg, Steepbank, MacKay, and Ells) in the AOSERP study area. The distributions and relative abundances of fish in each stream and watershed are also described and related to the...

1980

Sekerak, A. D., Walder, G. L.

This report contains maps showing fish collection locations, photos and details of the physical characteristics of nine streams within five watersheds (Firebag, Muskeg, Steepbank, MacKay, and Ells) in the AOSERP study area. The Atlas accompanies the Volume 1 report (Sekerak, A.D. and G.L....

1975

Syncrude Canada Ltd.

Factors involved in the ecology of Ruth Lake and Poplar Creek are discussed. Ruth Lake is a small, littoral, moderately eutrophic lake. It has clear water, a muddy substrate, and is shallow (mean depth 1.5m). Winter stagnation /occurred but the water was well oxygenated in summer....

1977

Grant, W., Tsui, P., Green, R., McCart, P.

This is a report of baseline studies of aquatic environments in the Athabasca River. These studies were carried out at the request of Syncrude Canada Limited and were focused in the vicinity of Syncrude's Lease Number 17, which borders the west bank of the Athabasca River north of the town of...

1978

Grant, W., Tripp, D., McCart, P., Tsui, P., Green, R.

Syncrude Canada Ltd. is producing synthetic crude oil from a surface mine on the eastern portion of Crown Lease 17, Alberta. Aquatic Environments Limited was commissioned to survey the MacKay River which crosses Leases 17 and 22, also held by Syncrude. The survey is intended to provide a...

1973

Syncrude Canada Ltd.

The study reported here was initiated on July 26, 1971, to provide ecological baseline information on Beaver Creek. Field surveys were carried out from August 7th to August 24th. Of particular interest to this study was the acquisition of quantitative data on fisheries populations as a means of...