Black redhorse larval and juvenile habitat was characterized in the Grand River, Ontario from June to September 2007-2012.
Sulphur Springs
Several cold water sulphur springs flow into tributaries of the Welland River on the Niagara Peninsula. Sulphur spring water temperature
Brook Trout Population in an Urban Creek
In response to concerns regarding planned development in the area, Biotactic began monitoring water temperatures and conducted a survey of Brook Trout population size
Northern Pikeminnow Telemetry
In early June 2021 CART tags were surgically implanted into 58 Northern Pikeminnow to help identify locations for targeted sampling of spawning fish for a selenium toxicology study in Lake Koocanusa (reservoir) in BC. This project was conducted in association with Minnow Environmental for Teck Coal. Biotactic was involved with designing the telemetry component of the study, tagging fish, training field staff on the use of acoustic and radio telemetry equipment and regularly analyzed sent tracking data to direct Minnow field staff to possible spawning locations for sampling.
Impact of COVID-19 Pandemic on a Fishery
After initial complete lock-downs caused recreational angling restrictions due to COVID-19, angler exploitation rates of rainbow trout (Oncorhynchus mykiss) in the Saugeen River, Ontario, A tributary to Lake Huron, increased while fishery support activities remained impeded.
Videographic Surveys Saugeen River
Biotactic has been performing videographic surveys of fish passage at the Maple Hill dam fishway as well as within Otter Creek since 2018. Seasonal surveys are conducted using BRAVO M2 systems and the species, direction of movement, time, and condition of each unique fish is transcribed from recorded video.
Exposure to a Common Urban Pollutant
In this study we exposed creek chub (Semotilus atromaculatus), a widespread tolerant stream minnow, to various realistic concentrations of dog waste as simulated urban park runoff testing both fresh and dried dog faeces in both stagnant and aerated water for 96h to investigate the impact on fish survival and behaviour.
Sulphur Springs: Chemical Barriers to Fish Movement
Several cold water sulphur springs flow into tributaries of the Welland River on the Niagara Peninsula. Sulphur spring water temperature
Salmonid Redd Counts in the Saugeen River
Biotactic has been performing redd counts within the Saugeen River watershed since 2018. Surveys are conducted by trained staff in the Spring during the Rainbow Trout spawning period as well as in the Fall during the Chinook Salmon spawning period through a combination of wading and aerial drone videography.
Greater Redhorse Ontogeny
Adult greater redhorse Moxostoma valenciennesi, were seined from the Grand River, Ontario, and artificially spawned in May 1997 and May 1998, Eggs hatched after 6-8 d at a mean temperature of 19 C. Eggs and larval development of 9-22 mm specimens are described. Ontogeny of larval greater redhorse was compared
