Another Science Friday looking at the fate and migratory oceanic patterns of steelhead kelts from Alaska’s Situk River.
Science Friday (PART TWO): Disappearing Steelhead – The Fate of Summer Steelhead Seeking Coldwater in the Columbia and Snake Rivers
fish traveling downstream through the hydro system, and discussion of possible management changes to help improve steelhead survival.
Science Friday (PART ONE): Disappearing Steelhead – The Fate of Summer Steelhead Seeking Coldwater in the Columbia and Snake Rivers
In the Columbia and Snake rivers hydropower systems, many migrating summer steelhead overshoot their spawning streams, passing dams multiple times and increasing mortality rates, trying to find cold water refuge. We look at the ramifications on steelhead management for not properly accounting for these overshoot steelhead.
Science Friday: It’s not all about steelhead
We look at a new paper that digs into the factors leading harbor seal to prey on juvenile steelhead and the abundance of both coho and Chinook salmon during the steelhead outmigration window to understand how these pulses of hatchery salmon impact the weekly survival of steelhead moving through Puget Sound.
Should I Stay or Should I Go? – Part Two
Continuation of our Science Friday Series: Untangling Steelhead and Rainbow Trout Dynamics
Should I Stay or Should I Go?
Untangling Steelhead and Rainbow Trout Dynamics in Washington’s Hood Canal: Part 1
Science Friday: The shifting baseline of Olympic Peninsula steelhead
Much of the original evolutionary fabric of wild steelhead populations in the Pacific Northwest has been lost to history. But how much, exactly? A new report examining Olympic Peninsula steelhead sheds some light on that.
Wild Steelhead Harvest: Biological or Social Issue?
In the final installment of our five-part series on Oregon’s Rogue-South Coast Plan, we recap some of our previous concerns and make the case why we believe wild steelhead harvest on Oregon’s coast must end.
How the distribution of adults impacts density dependence and mortality in juveniles, and why it is important to escapement goals
Nick Chambers provides a more in depth discussion on the intricacies and quirks of density dependence, why adult spawning distribution is a key consideration, and how those attributes are important to evaluating density dependence and estimating escapement goals.
The Biology of Harvest
In the first of our five-part series, Nick Chambers discusses why density dependence is important to fishery management and how density dependence is used to understand production potential of habitat and to develop escapement goals.