In this week’s Science Friday post, we discuss a new paper where we show how high numbers of salmon may be more important than we previously thought for steelhead.
Science Friday: Steelhead hopscotching from one cold-water refugia to another in the Columbia
This is a topic we have discussed several times in the past, but given the critical nature of cold water refugia, and as the warming climate makes the warmest time of year even hotter, it’s a good time to review what we know about these crucially important habitats.
Science Friday: How do salmon and steelhead in the ocean find their way home?
Have you ever wondered how salmon and steelhead navigate in the big blue? It’s not like there is a road map, or a GPS – or is there?
Science Friday: McMillan’s Barbless Podcast with ODFW biologist Ian Tattam
Science Friday this week comes from our own John McMillan’s Barbless Co. Olympic Peninsula Podcast, with guest Ian Tattam, Supervisory Fish and Wildlife Biologist and one of the researchers being funded by our John Day Steelhead Project. Click on over to John’s podcast and give those quarantine-wary eyes a relief from screen time. John and Ian cover a lot of …
Science Friday: The risks and rewards of barging steelhead smolts
Sea-run Snake River fish species must pass through eight dams, four in the Snake and four in the Columbia. Barging some of them past these dams helps them avoid most of the harmful impacts associated with the hydropower system.
Science Friday: Nottawasaga River Steelhead Part 2 – A Great Lakes lesson in local adaptation and naturalization of a Steelhead population
This Science Friday we have the final part of a three-part series on steelhead in the Great Lakes. This is the second-half of last month’s article, authored by Brian Morrison, Fred Dobbs, and Chris Atkinson. The article was originally published in The Osprey in September 2010 (link to the original article in The Osprey is here: http://ospreysteelhead.org/archives/TheOspreyIssue67.pdf). The Osprey has …
Science Friday: Nottawasaga River Steelhead Part 1 – A Great Lakes lesson in local adaptation and naturalization of a Steelhead population
This Science Friday we have Part 2 of a three-part series on steelhead in the Great Lakes. The authors focus on a tributary to Lake Huron, the Nottawasaga River, which is located in central Ontario, Canada.
Science Friday- Just how much diversity can one creek support? Asotin Creek provides an example
If only it was as simple as an adipose fin. The presence of an adipose fin is universally recognized as the mark. An individual with an adipose fin is, with a few exceptions, considered a wild steelhead. On the other hand, those marked, clipped, or ad-intact fish, they are the hatchery ones. Although it is but a small mark, the …
Science Friday- What Have We Lost?
Imagine going back in time 100 years to the Columbia River. What do you think the steelhead looked like then? How long were they? How much did they weigh? In the early 1900s scientists working with the federal Bureau of Fisheries visited the Columbia River, which was considered the center of steelhead abundance for the Lower 48 – and frankly, …
Science Friday: Survival of hatchery and wild steelhead smolts: lots of mortality, just not always where you think
November has arrived, and here on the Olympic Peninsula, the first frost of the year. Further south in steelhead range, however, things are a lot warmer, and not in a good way. We send our best wishes for everyone affected by the recent wildfires. The impact of the extreme fire events we are experiencing over the past few …