Rainbow Trout (Oncorhynchus mykiss) were monitored over two consecutive vernal migration periods at a nature-like fishway on the Beaver River, Ontario to assess attraction efficiency, passage
Rainbow Trout Passage at the Maple Hill Dam
Passage efficiency of radiotagged rainbow trout at the Maple Hill fishway was 20 %. Based on our professional opinion, coupled with radiotelemetric data and underwater videography, it is highly likely that the measured
Northern Pike Telemetry and Passage Monitoring
Radio transmitters were surgically implanted in the body cavity of ten northern pike between 502 mm TL and 752 mm TL in March 2003 to assess fish passage at the Port Davidson Weir. Fish were released downstream from the fish bypass channel, and tracking began immediately using mobile
Swimming in Turbulent Flows
We have installed and operated cameras that stream fish movement inside fishways, onto the internet since 2007. In 1997, 1998 and 1999, we used underwater videography to monitor fish behaviour
Upstream Passage of Walleye
In September 1999 and April 2002, Biotactic Inc. was contracted by The Dow Chemical Company to examine a vertical-slot fishway
Dunnville Fishway Walleye Passage
A Denil fishway in Dunnville, Ontario was built to provide upstream passage for walleye Stizostedion vitreum from Lake Erie to the Grand River. Modest numbers of walleye have been observed to use this fishway.
Fishway Attraction Enhancement
Two Denil fishways on the Grand River, Ontario, have been monitored for activity by several dozen fish species annually since 1994
Mannheim Fishway Passage
We compared two Denil fishways, located on the west (low velocity – 10 % slope) and east (high velocity – 20% slope) side of the Mannheim weir, Grand River, Ontario
Northern Pike Annual Fish Lift
Movement of northern pike from the Grand River in Kitchener, Ontario, Canada to spawning areas in tributary creeks is directly related to reproductive success and production. Limited populations
Fish Movement at the Springbank Dam: Before-After Study
The City of London and the Upper Thames River Conservation Authority contracted Biotactic Incorporated to design and conduct a study to collect baseline data related to fish movement