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Found 10 records similar to Turkey Lakes Watershed Study
The Turkey Lakes Watershed (TLW) Study was initiated in 1980 by Environment Canada, Natural Resources Canada and Fisheries and Oceans Canada to evaluate anthropogenic perturbation of Canadian Shield ecosystems. Originally, the Study focused on the aquatic and terrestrial effects of acid rain, but now it includes research into the effects of other anthropogenic pollutants (e.g. toxic contaminants) and ecological perturbations (e.g. forest harvesting, climate change and fish habitat modification).
Water chemistry is measured at several stream stations in the Turkey Lakes Watershed (TLW) to quantify mass fluxes, cycling and budgets. Environment and Climate Change Canada (ECCC) tends to focus on lake outflow stations and other stations situated on Norberg Creek (the major drainage channel in the basin) while Natural Resources Canada (NRCan) tends to focus on headwater streams draining forested hill slopes. Monitoring began in 1980 but not all stations have complete records through to the present. Stream flow is measured continuously while water chemistry is measured intermittently.
The Turkey Lakes Watershed (TLW) is 1 of 5 hydrologically "calibrated" basins in eastern Canada that were originally devoted to process-oriented research into "acid rain" effects. They were selected to cover a wide range of climatic and hydrological conditions, deposition magnitudes, and terrain characteristics. Batchawana Lake is the headwater (highest elevation) lake in the TLW. It has two distinct basins, north and south (L1 and L2).
Continuous, year-round measurement of stream stage that is later converted to flow using a stage-discharge relationship occurs on at/near the lake outflows and 2 other stations along the principal watershed tributary, Norberg Creek. Supplemental Information
The Climate Change and Air Pollution (CCAP) program was established in 2016 to identify the severity and extent of adverse impacts of current and future air emissions on aquatic ecosystems to support regulatory actions and policy development. The program includes a number of components, including identifying, monitoring and defining air quality and greenhouse gas (GHG) concerns; improving our understanding of the short- and long-term effects of atmospheric pollutants on the environment; developing a plan to combat climate change; and monitoring and reducing both domestic and transboundary emissions of GHGs. The program is also responsible for identifying and studying emerging issues including multipollutant impacts, major urban sources, and effects of increasing heat on air pollutant formation, among others.
The Turkey Lakes Watershed (TLW) Study was established in 1979 by several federal government departments (Natural Resources Canada, Environment and Climate Change Canada, and Fisheries and Oceans Canada) to study the impacts of acid rain on aquatic and forest ecosystems but has since expanded to include other research on toxic contaminants, forest harvesting, habitat modification, and climate change. The TLW is a mixed hardwood forest with a 10.5 km squared area in the Canada Shield that drains into Lake Superior, and has been the focus of many interdisciplinary, whole-ecosystem studies on environmental issues. Benthic invertebrates, or insects found at the bottom of waterbodies, can be key indicators of stream health and play important roles in nutrient cycling and the food chain. In 1995, a project within the TLW aimed to evaluate how stream ecosystems respond to tree harvesting, which involved long-term surveys of benthic invertebrate communities pre- and post-harvest.
Groundwater wells were installed in the Turkey Lakes Watershed basin in the early 1980’s. These test wells were installed in eight sub-basins of the watershed and range in depth from 0.5 to 9.7 metres. They are located on a variety of terrain throughout. The water chemistry has been sampled at each of these wells starting in the 1980 to 1990’s, but only a small selection are still presently being sampled.
The snowpack has been sampled during both the accumulation and ablation stages at as many as 13 sites within the Turkey Lakes Watershed, Algoma, central Ontario, Canada since 1980, although more quantitative surveys began in 1989. Snow depth and a physical description of snowpack have been recorded at each station. Snow density, water equivalent and chemistry (major ions, pH and nutrients) have been determined. Since 2012, chemistry has only been completed on up to three sites although snow density and water equivalent have been measured at the others.
Watershed polygons are a graphical representation of watershed boundaries as defined in the Clean Water Act - Watershed Protected Area Designation Order. Attributes include municipality, primary and secondary treatment, Map ID and Watershed name.
The data set provides official information from the Government of Canada pertaining to the imports of Turkey and Turkey Products into Canada, subject to controls under Canada's Export and Import Permits Act (EIPA). Available reports provide import permits issuance data for Turkey and Turkey Products on a weekly, a quarterly/year-to-date basis and by Country of Origin on a year-to-date basis.