Seasonal Variation in Selected Nutrients of a River System
- 1 May 1970
- journal article
- research article
- Published by Canadian Science Publishing in Journal of the Fisheries Research Board of Canada
- Vol. 27 (5) , 837-846
- https://doi.org/10.1139/f70-091
Abstract
Water samples were collected biweekly from five locations on the Grand River, Ont., from August 16, 1967, to September 1, 1968. Headwater nutrient levels and associated water chemistry were radically altered by the influence of a small city. Processes of recovery occurred downriver in a primarily agricultural watershed. Levels of dissolved oxygen, carbon dioxide, pH, alkalinity, hardness, ammonia, nitrate, and silica followed similar seasonal patterns at all locations. High and widely fluctuating levels of chloride, ammonia, nitrate-N, nitrite, and orthophosphate were evidence of gross enrichment. Nitrate-N, orthophosphate, iron, and sulfate levels varied irregularly during the 13-month period.This publication has 1 reference indexed in Scilit:
- Diel and Seasonal Variations in Physiochemical Limnology, Speed River, OntarioWater Resources Research, 1969