Arctic Grayling Growth in the Kuparuk River; data from 1986-2003

Adult Arctic Grayling were caught and tagged in the Kuparuk River. A second fishing campaign occurred later in the summer, and any fish that was recaptured was remeasured to determine growth. Phosphorus addition has occurred since 1983; station sites are relative distance from the original 1983 phosphorus dripper. Stations include sites in a reference, recovery, and fertilized reach. Reaches were defined based on the location of phosphorous addition (see methods). Arctic Grayling were caught early in the field season, tagged, and recaptured late in the field season. During each capture, the grayling were measured for length and weight. With fish that were recaptured, growth of each grayling during specific seasons was calculated. Data is for 1986 to 2003.