Counting Rings on a Paddlefish (by Brett French)
By angelamontana

Posted: January 31, 2019

Take a look at this photograph. It looks like the cross section of a tooth, but it’s actually a thin slice of a paddlefish jaw. The jaws of paddlefish contain rings, just like trees, showing annual growth. Montana Fish, Wildlife & Parks takes jaws from paddlefish harvested in Montana to keep track of the fishes’ numbers, ages and population. Paddlefish are a unique species and grow large, making them a target for spring anglers.

Learn more about these fish and FWP’s study of them in my story in the Billings Gazette.