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Status of whirling disease in the Crowsnest River : technical report, 2019

Description

The Crowsnest River became a provincial priority to understand the impact of whirling disease on rainbow trout populations, prompting a comprehensive study of the watershed in 2019. Results of the... More ≫

Description

The Crowsnest River became a provincial priority to understand the impact of whirling disease on rainbow trout populations, prompting a comprehensive study of the watershed in 2019. Results of the study are contained in this report. The objectives of this study were to: determine the spatial distribution, infection prevalence and severity of Mc in the Crowsnest River; measure triactinomyxon density in free-flowing water; characterize oligochaete relative abundance throughout the Crowsnest River; measure the timing and location of optimal water temperatures for parasite development and transmission; and estimate density and age-class structure of juvenile rainbow trout. The Crowsnest River is a high-value sport fishery in southern Alberta.

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Whirling disease in the Crowsnest River

Description

In 2019, Alberta Environment and Parks conducted a comprehensive study to understand the impact of whirling disease on rainbow trout populations in the Crowsnest River. This document provides a... More ≫

Description

In 2019, Alberta Environment and Parks conducted a comprehensive study to understand the impact of whirling disease on rainbow trout populations in the Crowsnest River. This document provides a brief background on whirling disease, a summary of the Crowsnest River study, and an adaptive management plan to address whirling disease in the Crowsnest River.

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