White sturgeon throughout the upper Fraser River were intensively studied by the Lheidli T'enneh First Nation between 1999 and 2010 between the Blackwater River and Crescent Spur (400 river kilometers). Through these studies, it was determined that these were a genetically unique sub-population of sturgeon within the Fraser River watershed. Subsequent investigations into the life history with a focus on spawning and overwintering sites resulted in further studies; these included internal radio tag deployment, determining sex, sex ratios and levels of maturity of individuals and follow up telemetry.
Our Role in the Project
EDI provided the Lheidli T’enneh First Nation with an experienced biologist who supervised, coordinated and worked with First Nation technicians.
- Project logistics and management.
- Supervised sturgeon handling, tagging (FLOY, PIT, and radio), determine sex and maturity, and biophysical data collection procedures.
- Provided fin ray aging.
- Coordinated and supervised aerial telemetry.