Offsets and Compensation
Biotactic devised and developed a
Before-After-Control-Impact (BACI) study for the Bruce
Power Nuclear Generating Station to offset and
compensate for fisheries impacts associated with nuclear
power production near Lake Huron. We established
twenty-two sites including four isolated control sites
to measure the long-term effects of removing the Truax
dam in Walkerton, Ontario for enhancing fish production
and biomass in the Saugeen River watershed. The BACI
plan with associated equations for measuring changes in
biomass and fish production was developed in 2017/2018.
Baseline biomass data, prior to dam removal, were
collected using electrofishing for 40+ species in 2018
and 2019. The BACI study was also coordinated with a
long-term radio-telemetry evaluation beginning in 2018.
Rainbow trout passage and fixed-station underwater
videography was used, as well as redd counts, in order
to measure changes in fish production pre- and post-dam
removal and will continue until 2026.
Bruce Power Nuclear Generating
Truax Dam Before and After Removal - downstream
view, Saugeen River