Radio Tagging

What is being done to help them?

Radio Tagging

Many stugeon were radio tagged in the Nechako River , from 1995 to 2003.   Several sturgeon were also radio tagged in the Stuart River and Stuart Lake in 2002. Each radio tag has a unique radio frequency signal that it sends out. The frequencies sent out by these tags can be detected by researchers using antennas and a receiver unit from a boat, a plane, or the ground. The purpose of this “radio telemetry” work is to determine:

  • Movement patterns and habitats utilized by sturgeon of different ages, sizes and sexual maturity at different times of the year.

Why?

When tracking the fish’s unique radio frequencies, they can better understand:

  • Why a fish may be moving to certain locations at certain times of the year.
  • Determine factors that control the Nechako White sturgeon’s spawning behaviors.
  • Determine behaviors, and specific habitat required by the sturgeon.

The Recovery Initiative has established several stations along the Nechako River that can detect if a tagged fish has passed the site and what direction it was moving. Researchers monitored the tagged fish in the spring of 2004 what led them to discover a spawning event.