Summer is over, but before we put it behind us, it’s worth considering that the summer of 2020 was likely one of the two hottest summers in the northern hemisphere since humans began measuring the temperature of air and water. Hot temperatures directly—and sometimes dramatically—affect steelhead and many other salmonid species. So our Science Friday review this week of a study of steelhead in California’s Eel River is timely.
Science Friday: Juvenile steelhead feast or famine depending on the number of spawning salmon
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?
Quiz: How much do you know about steelhead biology and management?
So how much do you really know about steelhead biology and their management? Take a crack at our 12-question quiz that was developed by our team here at Wild Steelheaders United and test your knowledge.
Hyperstability in fishing: Ever wonder why you catch fish even when they are greatly depleted?
In this week’s Science Friday, we hit on the concept of hyperstability, which occurs when catch rates remain high even as fish populations decline.
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.
Early History of Great Lakes Steelhead
Time for another Science Friday. As followers of these posts know, we like to bring you interesting and useful knowledge about steelhead from a variety of sources. This week,we have a guest author: Brian Morrison. Brian is a scientist and angler who lives in Ontario, Canada, and he was kind enough to drop some knowledge about steelhead in the Great …