Spring Chinook Returns: Commentary

Portland General Electric has recently been talking about above average returns of reintroduced spring chinook this year.  I first saw mention of this in their June newsletter, then there was this story on KTVZ, and then today’s story in the Bend Bulletin.  I hesitated to write about these returns but given the coverage, here’s my two cents.  Without a doubt this is good news but with a total of 46 adult fish so far this year returns remain dismal.  PGE is crediting the improvement to operational changes, specifically releasing hatchery reared smolts rather than fry along with nighttime operation of the Selective Water Withdrawal tower during out migration periods.  I certainly hope these are the reasons.  Time will tell, however, if this is an aberration, like the recent one year spike in Sockeye returns that has not repeated itself, or the beginning of a true recovery.  I’m hopeful, but cautious.

Reminder: Pelton Round Butte Fisheries Workshop & Water Quality Study

As I have written about repeatedly in the past, if you want to hear the latest science and updates on what is happening in the Lower Deschutes, you should attend the Pelton Round Butte Fisheries Workshop.  The 25th annual workshop is next month, July 17 & 18, at The Riverhouse Convention Center in Bend.  You can sign up and get the agenda here.  This meeting should be especially interesting.  Along with the normal updates on salmon and steelhead reintroduction efforts, the results of the long overdue water quality study will be released.  You can read the latest PGE/CTWS newsletter via the link above.  The complete water quality study will be posted on their site on June 20, so come to the workshop prepared to ask questions.  I hope to see you there and, as usual, will post my summary of the meeting.

CORRECTED: Final Steelhead Numbers

The official Deschutes steelhead season is from April 1 to March 31, so the 2018/2019 season is now over.  Today, PGE released their March monthly newsletter which stated that a total of 35 upper basin origin adult steelhead returned and were passed above the Pelton Round Butte project and released into Lake Billy Chinook.  Clearly, this is a dismal number.  You can see the number of smolts that were released downstream here.  Assuming that adult returns were from 2016 smolts that’s a return rate of only 0.87% (not 8.7%, I missed a decimal point in the original post).  There is hope for some improvement in the adult return count, however, if not the percentage.  In 2017 and 2018 steelhead smolt counts were much higher.  2017 was a better water year and in both years more smolts were planted.  Starting next year only smolts will be planted.  Read more about this here.

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Upper Basin Anadromous Fry Stocking

 

Crooked River Canyon
Lower Crooked River Canyon

This spring marks the last stocking of fry as part of the upper Deschutes Basin salmon and steelhead reintroduction effort. Yesterday I was part of the crew helping with the final chinook salmon fry stocking and backpacked fry into the lower Crooked River canyon as well as where Alder Springs meets Whychus Creek not far from the middle Deschutes. As I wrote about here, the reintroduction effort has been a disappointment for many reasons one of which is the unsuccessful fry stocking effort and a new approach is needed.Read More »

Oregon Chapter American Fisheries Society Meeting and Another SWW

Last week the Oregon Chapter of the American Fisheries Society held their annual meeting in Bend.  I attended the 21 presentations on Water & Climate.  I’ll make a few posts with highlights and, hopefully, some copies of presentations I have requested.  One of the presentations was on the unintended consequences of  selective water withdrawal at Cougar Dam on the South Fork of the McKenzie River.  There are some interesting analogues to what is happening on the Deschutes.Read More »

The Osprey and a Critique

The latest issue of The Osprey is now available.  If you like to read scientific articles about steelhead and salmon conservation, mostly in the Pacific Northwest, then this is the journal for you.  I encourage you to subscribe and help keep them going.  This issue has a couple of articles that once again illustrate the peril facing anadromous fish in many PacNW river systems.  It also contains an article on the lower Deschutes River which I found problematic.  Read More »

Deschutes Wild Steelhead Update

Unfortunately, as of the end of September things still look pretty bleak for wild fish this season.  The trap at Sherars Falls has captured a total of 44 wild steelhead.  Only 3 of these have made it to the the trap at the bottom of the Pelton Round Butte complex (Lake Billy Chinook, etc.).  Two of those are actually hatchery steelhead that were released above Lake Billy Chinook but did not have their adipose fins clipped.  As I detailed in a series of posts starting here, these fish could be on a path to extinction in the not too distant future.