Seabirds, krill, and salmon

Our guest on January 27 was Professor Daniel Roby of the Oregon Cooperative Fish and Wildlife Research Unit, in the Department of Fisheries and Wildlife at Oregon State University.  We had a fascinating conversation about seabird feeding strategies, energetics, and the “wreck” of Cassin’s Auklets.

In the second half of the show, Dr. Roby told us the amazing story of how a dredge spoil site became the site of the world’s largest Caspian Tern breeding colony, threatening the fragile recovery of salmonids in the Columbia River system, and how he and others used a “push-pull” strategy to move the entire colony to a different site.  The effort succeded beyond expectations and dramatically reduced tern predation on salmonids.

Listen to the entire show here.


About Tim

Host for Oak and Thorn on the first and third Sundays of every month, and The Ecology Hour on the fourth Tuesday of every month. Oak & Thorn aims to present the widest possible spectrum of Celtic music, from traditional to contemporary styles, along with information about history and culture. The Ecology Hour- Science Edition (co-hosted with Bob Spies) presents recent scientific findings about the natural world and our place in it. My other interests include brewing, gardening, birding, cooking, woodworking, and history. I live on Middle Ridge in Albion, California, among wonderful neighbors.
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