Fisheries managers predict this will be a very bad year for returning B-run steelhead in the Snake River. The Snake, with its headwaters straddling the Teton Range on the Idaho-Wyoming border, is the largest tributary to the Columbia and its intact habitat and steelhead runs are vital to the overall health of Columbia River steelhead populations. Despite the high quality …
Science Friday: The different life histories of adult steelhead
Last week we reviewed the terms used to define different stages of the juvenile steelhead life cycle. This week we break down the life stages of adults and describe their different life histories, which are remarkably diverse. The adult steelhead life stage may be delineated into two categories: adults and kelts. Adults are fish that are mature or preparing …
Science Friday: The life stages of juvenile steelhead
We have spent the last several weeks introducing and defining a variety of terms used in steelhead management. This week, we shift to looking at terms related to steelhead biology, specifically terms used to describe different life stages of juvenile steelhead. Let’s start with eggs. These are the little round suckers that produce the fish. Seriously, everyone understands the …
Science Friday: What the heck do all those acronyms mean?
Science Friday! Another chance to dive into the weeds and define some of the jargon used when discussing, studying and evaluating hatchery steelhead. This week we focus on acronyms commonly used in hatchery management plans. Anyone who has read through a Hatchery Scientific Review Group plan or review, or most any resource management plan for that matter, has probably …
Science Friday: What is introgression?
For this edition of Science Friday, we continue to define terms used in studies that evaluate hatchery steelhead (and often other species of salmon and trout). Last week we defined fitness and discussed how it is measured and why it is important to understanding the biology of steelhead. This week we take another step into the deeper end of the …
Big WIN for sportsmen on the Elliott State Forest
On Tuesday, May 10, sportsmen and women won a huge victory when the Oregon State Land Board voted unanimously to keep the Elliott State Forest in public hands. The 80,000 acre Elliott is a popular area of public lands with high habitat and sporting values for salmon, steelhead and trout, deer, elk and other game species. The land board …
Steelhead 101: Defining native, wild, hatchery and natural-origin
In recent posts we covered the basics of defining escapement and run size, and the ways these are measured by resource managers. Today, we turn our focus to the complex terminology used for describing and comparing hatchery and wild steelhead. Steelhead are typically referred to as either being “wild” or “hatchery,” but they may also be defined as being “native” …
Steelhead 101: Estimating steelhead run size
Recently we have described the various methods used by biologists and resource managers to estimate steelhead escapement, which is the number of fish that escape and survive fisheries (all forms of angling) to actually spawn in a watershed. Run size is the total number of steelhead that return to a watershed each year. In order to estimate run size …
Steelhead 101: Using weirs to estimate adult steelhead escapement
Recently we have described how scientists use redd counts and snorkel surveys to estimate steelhead escapement. This week we focus on weirs, a totally different way of counting steelhead. Rather than sending out surveyors to sample stretches of stream where they count redds or fish, the operation of a weir is much simpler. A weir basically blocks the river and …
Bill that protects Methow River from mining moves forward
A bill that would protect lands in Okanagan County from mining is moving forward after a markup in today’s Senate Energy and Natural Resources Committee hearing. The Methow Headwater Protections Act of 2017, S. 566, comes on the heels of a 20 year mineral withdrawal, cementing protections for an area known for it’s agriculture and recreational importance in …