Filters: Tags: riparian systems/watershed (X) > Types: OGC WMS Service (X)

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A fish-based index of biological integrity for assessing river condition in Central Alberta Conclusions: Report describes the development of a multi-metric, fish-based Index of Biological Integrity (IBI) to assess the health of aquatic ecosystems on the Battle River, Alberta. The IBI was highly sensitive to cumulative anthropogenic disturbance. Impaired integrity of fish assemblages was detectable at road densities as low as 0.7km/km2 Thresholds/Learnings: Impaired integrity of fish assemblages was detectable at road densities as low as 0.7km/km2. Synopsis: Report describes the development of a multi-metric, fish-based Index of Biological Integrity (IBI) to assess the health of aquatic ecosystems on the Battle River, Alberta. The IBI was highly sensitive to cumulative anthropogenic disturbance. Impaired... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alberta (Central), Battle River, IBI, Index of Biological Integrity (IBI), Land use configuration, All tags... Landscape fragmentation, aquatic health, fish, fish-based index, prairie-parkland ecosystem, riparian systems/watershed, road density, sub-regional, Fewer tags Urbanization of aquatic systems: degradation thresholds, stormwater detection, and the limits of mitigation. Conclusions: The amount of upstream impervious area affects downstream fish habitat quality, channel stability, and water quality. The use of riparian buffers can reduce the magnitude of urban impacts, however, they cannot fully mitigate the impacts of upstream development in the watershed. Threshold percentages of impervious areas , as well as the percentage of forest cover in a watershed appear to be the most effective indicators of watershed health. Thresholds/Learnings: Impervious areas should be kept at or below 10% of a watershed, and forest cover should be maintained at a minimum of 65% in order to effectively mitigate the impacts of urbanization and development on watersheds. Synopsis: This paper articulates... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cedar River-Lake Washington, Green-Duwamish River, White River, Central Puget Sound Watershed, King County, Washington, Land use configuration, Natural cover amount, All tags... Sammamish Watershed, Snoqualmie-Skykomish River, Strait of Georgia/Puget Lowland, and North Cascades, Washington, fish habitat, forest cover, impervious surface, riparian systems/watershed, stream stability, sub-regional, thresholds, water quality, Fewer tags