Fig. 9 Spatial variability in the predicted densities of juvenile salmon populations in the Girnock (after Glover et al., 2018). Densities are illustrated for a median ova deposition level. Panels A and B show densities of fry obtained from naturally spawned ova (A) and densities of parr which were independent of stocking effects. Panel C shows the more uniform spatial variability in fry densities resulting from uniform stocking. Panel D shows the spatial differences in fry production between uniformly stocked and naturally stocked years.