Chlorophyll–Phosphorus Relationships for Subarctic Lakes in Western Canada

• Published in: Canadian Journal of Fisheries and Aquatic Sciences
• Main Authors: Ostrofsky, M. L., Rigler, F. H.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1987
• Subjects: Aquatic Science; Ecology, Evolution, Behavior and Systematics; Yukon; Yellowknife; Canada; British Columbia; Dillon; Subarctic
• Online Access: http://dx.doi.org/10.1139/f87-094; http://www.nrcresearchpress.com/doi/pdf/10.1139/f87-094

Concentrations of total phosphorus and chlorophyll a were measured weekly in 49 lakes in the vicinity of Yellowknife, N.W.T., Canada, from May to September 1977. The relationship between [TP spr ] and [Chl a su ] was significantly different from the Dillon–Rigler model, but similar to relationships developed for lakes in Alberta, British Columbia, and the Yukon Territory. Empirical relationships were developed between [TP spr ] and maximum chlorophyll a concentrations and the probability of exceeding critical concentrations of chlorophyll a. These models may be potentially more useful than models which predict only a mean summer chlorophyll concentration.