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Science Friday: Do it once, do it twice. The tradeoffs of repeat spawning in steelhead

In Science Friday by Nick Chambers

We are back after a short break, after coming through a heavy dose of conservation work. That work, in part, helped convince the Washington Department of Fish and Wildlife and the National Marine Fisheries Service to re-open the iconic Skagit River for a catch-and-release season for wild steelhead. It feels like a new day has dawned for steelheaders in Puget …

Science Friday: The importance of both space and time in managing wild steelhead

In Science Friday by Nick Chambers

  This is the third of four posts on the nuts and bolts of estimating wild steelhead populations, spawning success, and other key management variables.   First, we covered the concepts of carrying capacity and density dependence and how habitat can be used to estimate carrying capacity. Last week’s post shifted gears to review studies that found the spatial distribution …