Water Stewardship Information Sources

ID 1171
Citation Lim, DSS et al. 2009. Limnology of Pavilion Lake, BC, Canada: Characterization of a microbialite forming environment. Fundamental and Applied Limnology. 173(4):329-351.
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URL http://www.schweizerbart.de/papers/fal/detail/173/56992/Limnology_of_Pavilion_Lake_B_C_Canada_Characterization_of_a_microbialite_forming_environment
Abstract/Description or Keywords The objectives of this study are two-fold: (1) to describe and quantify the seasonal physical and chemical limnological properties of Pavilion Lake, a microbialite-rich lake in British Columbia, Canada, and (2) to gain a broader limnological context of Pavilion Lake by examining the limnology and hydrology of the lakes and groundwater systems in the area (?30 km radius). Pavilion Lake is a dimictic lake with annual ice-cover. It is a hard water (mean CaCO3 = 181.8 mg L-1), ultra-oligotrophic (mean Total Phosphorus [TP] = 3.3 ?g L-1) lake, that is groundwater fed most likely through diffuse, low velocity local and regional sources. Principal Components Analysis (PCA) separated Pavilion Lake from the other groundwater, stream and lake samples along a conductivity and pH gradient on Axis 1 (?1 = 0.392), and a nutrient (Total Nitrogen [TN], TP) and K+, Mg2+, Si gradient on the second axis (?2 = 0.160). Pavilion Lake has the lowest Ca2+ and TP concentrations, and the highest Na+ concentrations and optical transmissivity amongst all sampled sites. Furthermore, the lake is characterized by low sedimentation rates. These characteristics are potentially important factors in supporting the past and on-going development of microbialites within the lake. Our study provides a limnochemical reference to consider in the conceptualization of ideal environments supporting large-scale microbialites.
Keywords

hard water lake ユ ultra-oligotrophic lake ユ groundwater systems ユ paleolimnology
Information Type article
Regional Watershed Fraser
Sub-watershed if known Pavilion lake
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Project status complete
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