Wahleach Project Water Use Plan Lower Jones Creek ... - BC Hydro

4
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
Sept 12
Sept 17
Sept 22
Sept 27
Oct 1
Oct 6
Oct 8
Oct 12
Lower Jones Creek Fish Productivity Monitoring 2008-2009 16
Oct 19
Figure 5 Lower Jones Creek hydrograph for the spawning period. This chart shows the results of
flow measurements limited to 4.0 cms and below to indicate target flows (1.1cms) through the
spawning period (September 15 to November 30). Target flows are indicated by the dashed red
line.
4.4 Temperature Monitoring
Water temperature is monitored throughout the year in Lower Jones Creek. Over the course of
the active spawning period for chum (September 22 – November 18), mean daily temperature
ranged from a high of 12.5C (September 22) to 5.0C (November 18). Figure 6 shows the daily
max, min and mean temperature for the entire survey period. For chum salmon the average
daily mean temperature during the spawning period was 7.8C (with a maximum of 12.5C and a
minimum of 5.0C).
Oct 22
Oct 27
Oct 30
Nov 2
Nov 9
Nov 16
Nov 18
Nov 26
Dec 5