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Alberta water quality guideline for the protection of freshwater aquatic life : dissolved oxygen

Description

This guideline identifies the dissolved oxygen levels that are necessary to protect aquatic life in Alberta. The Government of Alberta, industries and municipalities will use the guideline to... More ≫

Description

This guideline identifies the dissolved oxygen levels that are necessary to protect aquatic life in Alberta. The Government of Alberta, industries and municipalities will use the guideline to assess the potential for impacts of oxygen-consuming discharges from industrial and municipal wastewater treatment plants. The public can use the guideline as a reference when assessing the environmental health of their water.

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An empirical analysis of water temperature and dissolved oxygen conditions in the Red Deer River

Description

Temperature and dissolved oxygen (DO) are important water quality variables which affect the viability of fish and other aquatic organisms. These variables can potentially be influenced by river... More ≫

Description

Temperature and dissolved oxygen (DO) are important water quality variables which affect the viability of fish and other aquatic organisms. These variables can potentially be influenced by river flow. Understanding the effects of flow and other factors on these important variables is critical for river management, particularly in the face of increasing demands on river resources. In this report, simple empirical methods are used to investigate the relationships between water temperature, DO, air temperature, and flow at two locations in the Red Deer River. Available water temperature, DO, discharge, and air temperature data were compiled for a number of sites along the Red Deer River. Compliance with water temperature and dissolved oxygen requirements for fish were evaluated at all sites using daily data. Non-compliance with acute and chronic temperature criteria occurred more frequently at stations located in the lower reaches of the river. Violations of oxygen criteria in the...

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Investigations of streambed oxygen demand, Athabasca River, October 1994 to March 1995

Description

Streambed oxygen demand (SOD) is thought to account for a significant fraction of the total oxygen demand in the Athabasca River in the winter. SOD was sampled in the Athabasca River from October... More ≫

Description

Streambed oxygen demand (SOD) is thought to account for a significant fraction of the total oxygen demand in the Athabasca River in the winter. SOD was sampled in the Athabasca River from October 1994 to March 1995 with objectives of obtaining a series of measurements from upstream of Hinton to the Calling River area, and investigation temporal change in SOD at key sites.

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Oxygen conditions in the Athabasca River system, with emphasis on winters 1990-93

Description

This report presents the findings of dissolved oxygen monitoring and surveys on the Athabasca River system in the years 1990-93. Dissolved oxygen has been monitored by means longitudinal synoptic... More ≫

Description

This report presents the findings of dissolved oxygen monitoring and surveys on the Athabasca River system in the years 1990-93. Dissolved oxygen has been monitored by means longitudinal synoptic surveys, recording oxygen meters, and a network of regular sampling sites.

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Temperature and dissolved oxygen criteria for Alberta fishes in flowing waters

Description

The objective of this document is to provide temperature dissolved oxygen criteria for selected Alberta fishes that provide for the protection of critical life stages while still retaining the... More ≫

Description

The objective of this document is to provide temperature dissolved oxygen criteria for selected Alberta fishes that provide for the protection of critical life stages while still retaining the flexibility for reasonable water use and other fisheries management options.

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