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Found 10 records similar to Lake and Stream Trophic State Index - Riding Mountain
Benthic invertebrates monitoring includes both lotic (rivers/streams) and lentic (wetlands) ecosystems. Aquatic biomonitoring provides a direct measure of change in biotic populations and communities in relation to benchmark or reference conditions and can help identify the ecological effects of cumulative stressors. Used together with the water chemical and physical monitoring components, this program uses an integrated approach to assess whether ecological affects are occurring in response to OS developments. Sampling can include the collection of invertebrates, algal biomass, water chemistry, and appropriate supporting habitat information and is conducted during periods of high abundance and diversity of macroinvertebrates.
Moose in Riding Mountain National Park are affected by hunting, predator population numbers, winter severity, and disease. Riding Mountain National Park conducts annual aerial surveys to monitor the moose population to determine if the population is within the established population thresholds based on historic estimates.
Beavers are a key component of the Riding Mountain National Park ecosystems. The park surveys active beaver food caches by air in 30 habitat blocks every 3 years. These surveys have been conducted since 1973.
The wolf population in Riding Mountain National Park is monitored through track counts that are conducted each winter according to methods established by Canadian Wildlife Service in the 1970’s. Wolves are the top predator in Riding Mountain National Park and monitoring their numbers assists in determining their long-term sustainability in the park.
The integrity of fire-dependent forest types will be maintained through prescribed burns. The park's fire management program uses remote sensing to monitor post-burn changes on the landscape annually. The Area Burned Condition Class measures will be used as per the PCA Fire Monitoring Plan.
Elk abundance and population composition are assessed annually during an aerial survey conducted between mid-January and mid-February. The elk population composition is measured annually in a classified aerial count held in late Fall.
The park monitors water quality on Clear Lake by sampling total phosphorus, Chlorophyll-a, oxygen consumption in the hypolimnion, and mean total phosphorus in the inflow streams. Nutrient and oxygen parameters will continue to change due to nutrient stress levels in the lake and thus, the targets and thresholds will change.
Brook trout are top predators in aquatic ecosystems at Kejimkujik that integrate the effects of stressors throughout the aquatic trophic structure. They are sensitive to a variety of stressors, including acidification, changes in water quality, climate change, fishing pressure, exotic species introductions, trophic structure alterations, land use change, and watershed fragmentation. The monitoring program tracks Brook trout population status, as assessed by relative abundance and trout condition at two watersheds in Kejimkujik. Volunteer anglers record morphometric and catch per unit effort data during the months of April, May and June for 3 years in a row every 5 years.
Peatlands are valuable ecosystems due to their critical ecological functions, however these sensitive habitats are vulnerable to various anthropogenic (e.g., peat-moss extraction, forestry or land-use practices, hydrological modifications, fragmentation, infrastructures); atmospheric (e.g., acid rain, nitrogen deposition, climate change); and natural (e.g., fire, erosion, invasive vegetation) stressors. The purpose of the bog dynamics monitoring program is to evaluate the condition of several ombrotrophic bogs with water quantity and quality parameters, as well as modifications in vegetation composition in order to detect degradation of these systems over time due to the potential stressors. The methods for this measure involve the monitoring of six stations, each consisting of three vegetation plots placed at set points along a transect located in representative vegetation away from the moat zone; and one surface water well for the measurement of water quantity and quality parameters. Each permanent vegetation plot consists of one shrub quadrat (5m x 5m) and four ground vegetation quadrats (1m x 1m).
This measure tracks changes of the lake water level in the coastal ecosystem of GBINP. This is significant in driving ecological processes as well as acting as a stressor in the the park’s costal wetland ecosystem - as it is hydrologically connected to the lake water body, both at the surface and below.