Tracking Salmon to their Birth Streams
Strontium is a trace element and mineral people use to make glow-in-the-dark paints and toothpaste for sensitive teeth. In research for his college degree, Sean Brennan used strontium’s unique qualities to track salmon in an Alaska river. At Brennan’s Ph.D. defense at the University of Alaska Fairbanks, advisor Matthew Wooller praised Brennan’s ambitious plan and his […]