Fig. 6
From: Movement of an imperiled esocid fish in an agricultural drain
Redundancy analysis of Grass Pickerel movements (stationary and mobile tagged fishes) and habitat variables at surveyed sites in Beaver Creek, Ontario, 2009–2013. Automated recording of the number of mobile tags and stationary tags was summed for two weeks before and after a site observation where habitat variables (vegetation cover, conductivity, water temperature) were measured (n = 65). The number of stationary and mobile tagged data and channel vegetation cover data were natural-log transformed to meet assumptions of normality. Observations with either zero mobile or stationary tags, or outlier values were removed prior to RDA analysis. The two outlier points scoring high on RDA axis 2 were validated as site visits with high relative abundances of mobile tags