Updates & Events
With so much going on at the Pelton Round Butte Hydroelectric Project it can be hard to keep up. We want to make it easy for you, so visit this page often for regular updates about events, ongoing research and programs, and other topics of interest.
To subscribe to our monthly newsletter, send an email to Deschutes.Passage@pgn.com with the subject line “subscribe.” You can also direct questions to this email address as well.
Join us for our first ever virtual Fisheries Workshop
June 25, 2020
We’re disappointed that we won’t be able to see our stakeholders in person this year but look forward to hosting our annual fisheries workshop online for the first time ever.
Join us for a few hours in July to hear the latest updates from Deschutes Basin fisheries experts.
When: July 23, 9 a.m. – 1 p.m.
Where: Online, GoTo Webinar virtual platform
Sign up: RSVP to let us know you’ll be there.
Busy Days on the Deschutes
June 18, 2020
Visitors passing by the Lower Deschutes River during the last few months may have been surprised to see our staff out on the water. What are biologists doing on a boat in the middle of a pandemic? PGE provides an essential service to our customers, and in order to generate electricity, we are obligated to perform certain environmental protection measures, including much of our fisheries work.
What work is taking place on the lower river this spring and summer?
We are currently working on the second phase of our Lower River Gravel Study. This seven-year project involves multiple smaller studies on the Deschutes, including the following efforts taking place this spring.
- Worm Sampling: Manayunkia speciosa is a worm species that acts as an intermediate host for Ceratanova shasta (C. shasta), a parasite that affects salmonids on the Pacific coast. These worms release spores that can infect fish on contact. Like many viruses that affect people, C. shasta has variable impacts on the individuals it touches, and there’s still a great deal we don’t know about the parasite. That’s why every other year, PGE and the Oregon Department of Fish and Wildlife participate in a one-day effort to sample these worms. This ongoing study helps us learn more about the prevalence and spread of C. shasta in the Lower Deschutes.
- Snorkel Surveys: Biologists are snorkeling several locations featuring underwater dunes and an area where we placed gravel last year. These snorkel surveys help us learn more about how fish and wildlife utilize gravel in the Lower Deschutes.
- Redd Surveys: Every other week from mid-October through June, our biologists look for redds (salmon and trout nests) on the Lower Deschutes River. We identify and map fall Chinook, redband trout and steelhead redds at specific locations, including sites where we’ve placed gravel.
Biologist Micah Bennet snorkels the Lower Deschutes River to observe fish and gravel movement.
Fisheries staff wade along the river to identify and mark redds.
Why are these projects important?
All of these efforts are part of the Phase II Lower River Gravel Study. This multi-year project has involved monitoring, the placement of gravel, boulders, and trees, and extensive data collection on the Lower Deschutes.
Ultimately, the study will help us evaluate whether we need to implement a long-term gravel augmentation program. Our gravel study has been a massive undertaking and will provide fisheries managers with valuable information about gravel dynamics and uses in the Lower River, helping us make science-based decisions for the benefit of the river.
What precautions are we taking on the river to prevent the spread of COVID-19?
We have been using individual pontoon boats whenever possible to keep employees six feet apart. When maintaining this distance isn’t possible, we wear face coverings, eye protection and gloves. While conducting fieldwork, our staff maintain physical distance and continue to follow our standard safety procedures.
Pelton Round Butte during COVID-19
May 11, 2020
We’ve been hearing a number of questions lately about our fisheries work during the COVID-19 crisis. Here are some answers to the most common questions:
Why are PGE fisheries staff still working in the field?
Generating and distributing electricity is an essential service – PGE needs to keep the lights on for our customers. Many of our employees, in Portland and at our generation facilities, are considered essential workers during the pandemic. To operate our hydropower plants, we are required by law to perform certain environmental protection measures. Our fisheries work is included in these requirements.
What kinds of work are still taking place? Why are these actions considered essential?
We’re still passing fish around our dams every day. This includes operating our Pelton trap for collecting adult fish and the Selective Water Withdrawal for collecting juveniles. Not only is facilitating fish passage a license requirement, it’s also important for the ecological function of the Deschutes River Basin. Fish and wildlife need to move freely, even during a global pandemic.
Additionally, we’re continuing to work on other required fish and wildlife studies. These include studying fish habitat, conducting snorkel studies, tracking adult fish by radio antenna, sampling water quality, and identifying and mapping redds (salmon/trout nests). All of these studies are required by our license. They also allow us to collect data on fish movement, survival, spawning, and behavior. This data helps us and our partners in the Deschutes Basin assess and improve our fisheries strategies.
What precautions are being taken to slow the spread of the virus?
PGE takes the safety of our employees seriously. We’re working in smaller groups and in staggered shifts. Additionally, we’re maintaining 6 feet of distance whenever possible. This means some of our work looks different or takes longer than it normally would, but we’re adapting to these challenges because we know they’re important. When we can’t maintain 6 feet of distance, we wear masks.
Smolt Acclimation: a gentle entry to the Deschutes Basin
April 14, 2020
Salmon and steelhead use their sense of smell to find their way home from the ocean. But what happens if they can't remember what home smells like? In recent years, fisheries managers in the Deschutes Basin have started using a strategy called smolt acclimation to give fish a leg up. In this process, juvenile Chinook and steelhead are held in-stream for one to two weeks in net pens, tanks or wire cages called live cars.
PGE fish biologist Terry Shrader loads Chinook into a net pen in the Metolius Pond.
Forcing fish to spend more time within the tributary prior to migration helps them become accustomed to water conditions and develop the olfactory cues needed to find that same stream when returning as adults. Studies show that acclimated smolts are more likely to undergo the complete process of smoltification – the biological/physiological changes that prepare fish to migrate to the ocean – and are more successful at finding their home stream when it comes time to spawn.
In 2019, only a small number of steelhead had a chance to acclimate due to snowy disruptions during the early part of the season. This year, we may be acclimating as many as 100,000 Chinook and 100,000 steelhead in several Deschutes tributaries using a variety of methods.
PGE, ODFW, and volunteers from the Deschutes Land Trust loaded steelhead into live cars in Ochoco Creek.
Photo credit: Patrick Buresh
Thanks to the help of staff and volunteers from ODFW, PGE, CTWS and other community partners, Chinook were placed in their acclimation pens in early March and steelhead made their Deschutes Basin debut in early April. Most batches of Chinook have already been released after spending 10-18 days in the water, while steelhead will be allowed to continue their migration in April or May.
Social distancing measures have changed our operations somewhat. PGE and ODFW are no longer taking assistance from volunteers – a decision we know may disappoint some of the eager helpers who signed up to participate. We have also reduced the number of staff working at a time and are ensuring that employees keep a safe distance from one another.
Live cars in Ochoco Creek
In spite of the changing circumstances, we’re hopeful that this year’s process will provide helpful data and result in stronger adult returns. Many of the acclimated smolts are being given PIT-tags so that we can evaluate differences between various species, acclimation sites and acclimation strategies. Moving forward, this information will allow us to fine-tune the whole process and help us reach our long-term goal: sustainable, harvestable fish runs in the Deschutes Basin.
Shining a spotlight on Pacific lamprey
Feb. 18, 2020
Most Oregonians are familiar with salmon and understand the importance of restoring their habitats, protecting their waters, and advancing reintroduction efforts like ours on the Deschutes. After all, Pacific Northwest salmon species are charismatic – brightly colored, fun to catch, tasty to eat, and culturally and economically significant to the region.
But there’s another fish species with similar traits whose recovery tends to receive less attention. These animals also migrate from freshwater to the ocean and back again, bringing marine nutrients with them upstream. Their numbers have also declined over the decades, due in part to habitat loss and passage barriers. And they’re also an important ceremonial food source for Native American tribes. That’s right: we’re talking about Pacific lamprey.
Lampreys can be easily identified by their distinctive sucker mouths and eel-like bodies. (Despite similarities in appearance, lampreys are not related to eels, but rather jawless fishes.)
Like salmon, lamprey populations were once present throughout the Deschutes Basin but were extirpated from the upper tributaries when the Pelton Round Butte project was constructed. We don’t have much information about lamprey distribution in the Deschutes today, but do know that some of these fish still reside in the tributaries of the Lower Deschutes River.
To help restore lamprey habitat and facilitate their recovery, PGE and the Tribes recently launched a new $3 million fund, supporting both restoration and research. Applications will be reviewed bi-annually by an advisory committee made up of representatives from our collaborative partners on the fish committee.
Pacific lamprey are an important but sensitive species in the Pacific northwest. Like salmon and steelhead, lampreys are anadromous — migrating to and from the ocean during their lifetime. We look forward to learning more about this fascinating and delicate species.
Prior to launching the new fund, we completed a 5-step evaluation process to determine the best course of action for aiding lampreys in the Deschutes. Implementing fish passage for adults and juveniles would require massive changes to existing infrastructure, and so lamprey passage at Pelton Round Butte was determined to be an impractical first step.
The decision was made to invest resources in mitigation instead, improving habitat (through the Mitigation and Enhancement Fund) and learning more about their distribution and behavior (through the Research Fund). Our first round of applications will be reviewed this June.
In addition to their cultural significance and role in transporting marine nutrients, lampreys are an alternative prey for aquatic and avian predators that might otherwise feast on salmonid smolts. The juveniles also help recycle nutrients by burrowing in sediment.
We hope our new fund will help these fish flourish in the Lower Deschutes and increase awareness amongst wildlife advocates, like all of you!