Falls River Project Water Use Plan Falls River Fish ... - BC Hydro

Falls River WUP Monitoring 2008/2009
Table 3: Average depth and velocities 2003/2004 Incubation Study (see Figure 4 for site and location
information) 3
13-Jan-04 02-Mar-04
Avg. velocity
Site Location Depth (m) Avg. velocity (m/s) Depth (m) (m/s)
2 1 0.36 0.56 0.17 0.19
2 2 * * 0.21 0.26
2 3 0.34 0.62 0.13 0.34
2 4 * * 0.18 0.40
2 5 0.43 0.51 0.18 0.32
3 1 0.68 0.75 0.60 0.39
3 2 * * 0.51 0.31
3 3 0.75 0.80 0.48 0.32
3 4 * * 0.50 0.32
3 5 0.60 0.73 0.51 0.32
4 1 0.44 0.67 0.25 0.51
4 2 * * 0.27 0.38
4 3 0.45 0.74 0.23 0.51
4 4 * * 0.26 0.19
4 5 0.40 0.78 0.20 0.29
* Measurements not taken. All flow and depth measurement were taken using a Swoffer metre and wading wand
Overall Site 1 had the highest survival rate to March 3, 2004, which may be a result of potentially
higher dissolved oxygen in relation to the site’s proximity to outflow from the turbines, and the
higher potential for sediment flushing at this site. This is purely speculation as the baseline data
collected is limited to a few points.
3 Miller, L. and Northcoast Environmental 2003/2004 – Falls River BCRP Restoration Incubation Study –
unpublished data.
Cambria Gordon and Metlakata Fisheries 6