Vertical Patterns in Lake Sturgeon (Acipenser fulvescens) Larval Drift within Two Rivers Directly Connected to Green Bay, Lake Michigan

Figure 5

Total length of larval lake sturgeon captured while drifting from upstream spawning sites in the Menominee River during the spring of 2013. Box plots illustrate the median and interquartile ranges with all length data points within each net type presented as jittered grey dots. Larvae were measured to the nearest mm using a standard ruler in the field (catch and release) and as a function of the 4 vertical nets specifically designed to sample the entire water column (Figure 2). Nets were deployed across the rivers’ cross section, and nets 2 and 3 sampled the center of the river channel. Section 1 was the net bottom, and section 7 was at the water surface.