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A summary of paleolimnological studies conducted in Alberta

Description

Paleolimnology is the study of lake development through analysis of physical, chemical and biological information stored in aquatic sediments. Paleolimnology has multiple applications, lake... More ≫

Description

Paleolimnology is the study of lake development through analysis of physical, chemical and biological information stored in aquatic sediments. Paleolimnology has multiple applications, lake management being one of them. The main objective of this report was to produce a summary of paleolimnological studies completed in Alberta.

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An evaluation of changes in water quality of Muriel Lake

Description

Total dissolved solids, conductivity and major ions have increased over time in Muriel Lake and that increase is linked to the drop in lake levels and the concentration of dissolved substances in... More ≫

Description

Total dissolved solids, conductivity and major ions have increased over time in Muriel Lake and that increase is linked to the drop in lake levels and the concentration of dissolved substances in the water. The salinity of the Muriel Lake has increased, although it still qualifies as a slightly saline water body. Phosphorus and chlorophyll a have increased slightly, but the database is insufficient to determine whether these changes are related to the decline in water levels or simply reflective of year-to-year variability. The lake has remained mesotrophic. Low winter dissolved oxygen levels, recorded under ice in recent years, are a concern for fisheries in Muriel Lake.

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Sensitivity of Alberta lakes to acidifying deposition : an update of sensitivity maps with emphasis on 109 northern lakes

Description

This report serves three main purposes. Firstly, it provides a refined representation of the sensitivity of Alberta lakes to acidifying atmospheric deposition. Secondly, it compiles data from a... More ≫

Description

This report serves three main purposes. Firstly, it provides a refined representation of the sensitivity of Alberta lakes to acidifying atmospheric deposition. Secondly, it compiles data from a number of different surveys of northern lakes; spatial and temporal trends for these potentially sensitive lakes are described. Thirdly, this report documents and evaluates some of the chemical analyses used, providing a foundation for future work.

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An assessment of the potential sensitivity of Alberta lakes to acidic deposition

Description

Alberta lakes potentially sensitive to anthropogenic acidic inputs are identified and sensitivity maps of the province based on selected chemical variables are presented in this report.

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