A holiday weekend deserves a new Science Friday post. So here we go. This week we focus on summer steelhead in the John Day River, a large tributary that drains into the middle Columbia River on the Oregon side. The John Day is a big watershed, covering 8,000 square miles, although the river itself is not that large. To …
Science Friday: Do these lipids make me look fat?
For most anglers who have encountered both winter and summer steelhead, it’s abundantly clear there are differences between the two races of fish. For one, they enter freshwater at different times of the year, although there is some overlap. In addition, there are physical differences. Summer steelhead tend to be more fusiform — sleeker and more firm bodied …
Science Friday: Certain genetic families survive better in hatcheries and might help explain why hatchery steelhead do poorly in nature
Spring is here and we’ve got a real shot of warm weather on the West Coast. Certainly, spawning steelhead appreciate the ecological effects of this boost in thermal energy. Last week we reviewed a recent paper on repeat spawning in steelhead in the Hood River, Oregon. This week, we return to the Hood to look at another paper out …