Figure 1. Daily rainfall, daily water temperature, and hourly water
level along the study reach. Upper and lower temperature limits for fish
species local to Weslie Creek are labeled on the water temperature graph
(LSRCA, 2000; Eakins, 2018). Field assessment days are shown with
diamonds along the lower x-axis.
The channel profile has a slope of 0.02 (2%) and the low flow channel
had a sinuosity of 1.32 (Figure 2). All cross-sections were identified
as asymmetrical, with varying channel bank slopes and different keystone
shapes and sizes (Figure 2). Further, rock weir asymmetry alternates
between cross-sections (Figure 2). Bed substrate distribution curves
were developed for each pool feature to reflect the Wolman (1954) pebble
count results for the six sampling days throughout the field season. The
results of each bed substrate sampling day were merged and organized by
pool feature to identify changes in bed substrate composition through
the field season. Given the similarity in the bed substrate distribution
curves for June 22, 2018, June 28, 2018, July 13, 2018, July 25, 2018,
August 14, 2018, and September 7, 2018, it was determined that bed
substrate composition did not change during this field season.