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Status of the bull trout (Salvelinus confluentus) in Alberta : update 2009

Description

This wildlife status report looks at the bull trout, a char species native to western North America, including the major drainages of the eastern slopes of Alberta. Since the early 1900s the... More ≫

Description

This wildlife status report looks at the bull trout, a char species native to western North America, including the major drainages of the eastern slopes of Alberta. Since the early 1900s the species has declined in both distribution and abundance due to the impact of human activities, and it listed as a species of special concern in Alberta. This report is part of the Alberta Wildlife Status Report series, which provides comprehensive summaries of selected wildlife species intended to be useful to those managing populations of species and their habitats, and to help identify species that may be formally designated as endangered or threatened.

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Selenium concentrations in the tissues of fish from the Upper McLeod and Upper Smoky River systems

Description

The present study compared selenium in fish tissues from flowing water systems near three west-central Alberta mountain cola mines in the upper McLeod and Smoky River systems to the toxicity... More ≫

Description

The present study compared selenium in fish tissues from flowing water systems near three west-central Alberta mountain cola mines in the upper McLeod and Smoky River systems to the toxicity effects thresholds developed by Lemly (1996). Overall, data for fish tissues collected in 2000 and 2001 by Alberta Sustainable Resource Development showed that selenium concentrations in rainbow and brook trout were usually greater than toxicity effects thresholds in the exposed streams compared to reference streams, particularly in the tissues of fish collected from waters draining the Luscar and Gregg River mines. General patterns for selenium concentrations int he remaining fish species sampled (bull trout, mountain whitefish, Arctic grayling, and longnose sucker) compared to effects thresholds were not always as apparent. This was to some extent due to the potential influences of spawning migrations of mountain whitefish and bull trout among the exposed and reference sampling locations, and...

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Fish diet analysis McLeod and Smoky River Drainages

Description

The primary objective of the study was to provide a summary of the diet data and any major patterns in the diet of fish from waterbodies within the study area. The analysis included the three diet... More ≫

Description

The primary objective of the study was to provide a summary of the diet data and any major patterns in the diet of fish from waterbodies within the study area. The analysis included the three diet content methods used (frequency of occurrence, percent composition by count, and percent composition by weight; see Section2.1 for details) and presentation of temporal (years and where appropriate months) and spatial patterns for the fish species among the river systems.

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Alberta's bull trout (Salvelinus confluentus) : special concern

Description

Provides information on the Bull Trout, including a general description of the species, its distribution in Alberta, habitat, an estimate of its population size, threats to its habitat and... More ≫

Description

Provides information on the Bull Trout, including a general description of the species, its distribution in Alberta, habitat, an estimate of its population size, threats to its habitat and survival, management issues, and what the public can do to help ensure the survival of the species.

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Status of the bull trout (Salvelinus confluentus) in Alberta [2002]

Description

This wildlife status report looks at the bull trout, a char species native to western North America, including the major drainages of the eastern slopes of Alberta. Since the early 1900s the... More ≫

Description

This wildlife status report looks at the bull trout, a char species native to western North America, including the major drainages of the eastern slopes of Alberta. Since the early 1900s the species has declined in both distribution and abundance due to the impact of human activities, and its status is listed as Sensitive in Alberta. This report is part of the Alberta Wildlife Status Report series, which provides comprehensive summaries of selected wildlife species intended to be useful to those managing populations of species and their habitats, and to help identify species that may be formally designated as endangered or threatened.

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Alberta's threatened wildlife : bull trout. Teacher's guide, grades 5-9

Description

The Bull Trout Teacher's guide is one part of the Alberta Threatened Wildlife Education Program. The bull trout is a native fish and designated as Alberta's Provincial fish emblem. through various... More ≫

Description

The Bull Trout Teacher's guide is one part of the Alberta Threatened Wildlife Education Program. The bull trout is a native fish and designated as Alberta's Provincial fish emblem. through various activities, students will learn about the importance of healthy streams to the bull trout's survival. They will learn how to identify the bull trout, some of the factors contributing to its decline, and what they can do to help.

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Characteristics of bull trout (Salvelinus confluentus) spawning sites in five tributaries of the Upper Clearwater River, Alberta

Description

Presents findings of a survey of five bull trout spawning tributaries of the upper Clearwater River to describe the physical characteristics of the spawning sites, and determine if environmental... More ≫

Description

Presents findings of a survey of five bull trout spawning tributaries of the upper Clearwater River to describe the physical characteristics of the spawning sites, and determine if environmental conditions were limiting to egg and alevin survival at these sites. A previous study had showed that these spring streams, characterized by stable water flows and stable water temperatures, provide 90 per cent of the known spawning areas for bull trout in the Clearwater River.

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