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
Physiological Telemetry
Conventional techniques for implanting electrodes into axial swimming musculature of fish are reviewed.
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.
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
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
Sea Lamprey Telemetry Noise and Range Tests
In September of 2007, we performed acoustic tests in the St.Mary’s and Mississagi Rivers to determine the feasibility and logistics of an ultrasonic telemetry study of the movement of sea lampreys at various locations
Blue Sucker Tracking
In October 2004 we implanted thirty Texas state endangered blue suckers (Cycleptus elongatus) with radio transmitters that we (Bio-West, Austin and Biotactic) monitored continuously
Fish Passage in Brazil
In November 2012, and again in 2019 we assisted our very good friends at Simbiota in Southern Brazil with some very exciting fish surgery,