Figure 1.

Macroinvertebrate prey of juvenile Atlantic salmon (Salmo salar) in streams with low (blue, n = 5) vs. high (green, n = 5) parental nutrient levels. Plotted are raw estimates of (a) total macroinvertebrate abundance and (b) total macroinvertebrate biomass for individual streams (unfilled circles) and the mean (filled circles; ± 1 SE) across streams within the low vs. high nutrient treatments. Estimates are given as the mean catch per unit effort for 1‐min samples taken at three locations at each of 50, 25 and 0 m above the downstream limit of each experimental reach.