By Evan Booher
In August, 2020 ODFW staff installed a new type of fish detection antenna at a site on the Middle Fork John Day River (MFJDR) near Ritter, OR. These new antennas, designed by ODFW employees, are made of loops of low-power electrical wire encased in PEX plumbing tubing. Their low profile will enhance their durability during flood and ice events that often damage previous designs. The antennas detect fish that were tagged with passive integrated transponder (PIT), radio frequency tags when they were either juveniles in the river or as adults at Columbia River Dams. This detection site will provide valuable information for counting and estimating survival of salmon and steelhead benefitting from the restoration work being implemented in the John Day River. This site is also part of the Middle Fork John Day River, Intensively Monitored Watershed (IMW) and complements other data being collected to monitor salmon and steelhead. Multiple interrogation sites will allow managers to estimate the return of adult chinook and steelhead prior to spawning and estimates derived from these monitoring efforts provide real information for tracking the recovery of these populations.
Patterns in the movement and survival of threatened salmon and steelhead stocks are essential information for their management in Oregon watersheds. PIT tags are widely used throughout the Columbia River basin to assess these population characteristics by multiple fishery agencies and these data are stored in a centralized database: the PIT Tag Information system (PTAGIS). Detections of PIT-tagged fish at Columbia River dams and throughout the Pacific Northwest, are used to monitor migrating salmon at multiple stages of their life cycle. This data is used as a standard for adult performance in NOAA’s Biological Opinion for the recovery of federally-listed salmon and steelhead in the Columbia and Snake River basins.
By Kasey Bliesner
MFIMW partners recently completed Phase II of the Vincent to Caribou habitatdisrupted natural channel migration patterns, were removed.
To improve and increase more natural instream fish habitat, some of the The project installed or placed 700 cubic yards of gravel, and added roughly 600 trees across 80+ structures. 20 pilot channels were also excavated to better allow the river to access the flood plain during high flow events. For this project, CTWS employed innovative, low cost, low impact methods to place and anchor these large wood structures, replacing the more invasive practice of burying portions of the wood in streams banks for anchoring. Burying portions of the wood in stream banks isn’t natural, is slow and expensive, creates a lot of turbidity, and exposes disturbed ground to weeds and erosion. With the Phase II methods, most wood is simply placed on the ground without excavation (as natural tree-falls would occur), and wood structures are stabilized with posts. These posts are intended to stabilize wood structures in the short-term, while allowing for more natural large-wood movement and function processes in the long-term.
This project also consists of several riparian enhancement elements. Several studies performed throughout the MFIMW over the last 12 years have identified elevated summer stream temperature as the largest factor limiting productivity of salmonids in the Middle Fork John Day River, and that this factor is mostly facilitated through solar exposure due to lack of shade relief from riparian vegetation (See Shading Out Climate Change: Planting Streamside Forests to Keep Salmon Cool). In effort to improve riparian condition and function, CTWS will be installing three riparian vegetation enclosures to protect over 55 acres of riparian area, as well as planting approximately 3,000 sedges and over 4,000 woody species such as Cottonwood, Alder and Willow in 2020. The lead for this project is the Confederated Tribes of Warm Springs and partners include the Bureau of Reclamation, Bonneville Power Administration, Pacific Coastal Salmon Recovery Fund (NOAA), and Oregon Watershed Enhancement Board.
By Kasey Bliesner
High stream temperatures in the Middle Fork John Day continue to be a limiting factor for salmon and steelhead. Research into keys factors for reducing stream temperature in the Middle Fork John Day IMW area led by Steve Wondzell (research ecologist, USFS PNW Research Station) was recently highlighted in the June 2020 edition of the USFS PNW Research Station publication PNW Science Findings. Wondzell and his team used water temperature modeling to study and predict how stream temperatures could change in response to future changes in air temperature, stream discharge, and the amount of shade provided by riparian vegetation. Modeling results showed “the effect of restoring riparian forests on streams where shade is currently lacking could be so large that future stream temperatures could be colder than today, even under a warmer climate with substantially lower late summer streamflow.”
Follow this link to read more…
By Kasey Bliesner
The Middle Fork John Day IMW workgroup summarized 10 years of restoration and scientific monitoring in a fact sheet for restoration practitioners in the Mid-Columbia River Basin.
In the initial 10-year period (2008-2017) of the MFIMW, over 100 active and passive restoration projects of varying size and scope were implemented. 20 organizations participated in monitoring activities resulting in over 14 scientific reports. A comprehensive Final Summary Report synthesized results and represents 10 years of work by agencies, organizations and individuals conducting restoration, research, and monitoring activities. In order to quickly share results of the report with restoration practitioners, the MFIMW workgroup recently produced a fact sheet distilling findings. It features the MFIMIW’s goals, key findings and lessons learned from 10 years of paired restoration and monitoring. The fact sheet is available in two formats:
By Emily Davis
After ten years of hard work, the Middle Fork IMW Working Group is celebrating the completion of its Final Summary Report.
The Final Summary Report summarizes data collected from 2008 to 2016. This report represents 10 years of work by numerous agencies, organizations and individuals conducting restoration, research, and monitoring activities in the upper Middle Fork John Day River. Each principal investigator and their co-authors wrote a final report, which represents the culmination of their research and monitoring. The reports were compiled, along with pertinent background information, into this final Summary Report. An extensive overview of MFIMW activities, key findings, and recommendations can be found in the Executive Summary.
For full details about a specific monitoring project including methods, analyses and results, readers can refer to Appendices B-M, which are compiled in a separate document. Links, bookmarks, and navigation have been provided, where possible, to ease in viewing this document electronically.
Final Summary Report
Access the Appendices
More is in store for the Middle Fork IMW in 2018. Be sure to check back for additional news items, and meanwhile, enjoy perusing the Summary Report!
By Emily Davis
The summer of 2016 was a chaotic one at Oxbow Conservation Area. Excavators, fencing crews, scientists, and Tribal staff all hurried to finish the last phase of the five-year Oxbow Mine Tailings Restoration Project before season’s end. Amid the hustle and bustle, you might have observed something a little different: two women with microphones and film cameras, dodging in and out of the hubbub to get the best shot, or herding someone away from the racket for a quiet interview in a meadow.
The two filmmakers were Michelle Alvarado and Jen Rule, who make up two-thirds of the talented Bend-based company Wahoo Films. Their short film Náimuni: Connecting Oxbow Conservation Area celebrates the completion of one of the biggest river restoration projects ever to take place in the State of Oregon. Along the way, the film explores the history of the upper Middle Fork John Day River, and its journey from damaged dredge-mined ditch to thriving salmon stream via the lengthy restoration process. The theme of connection is woven throughout— as heavy equipment works to reconnect the river to its floodplain, we see how improving salmon habitat will also benefit the myriad other interconnected pieces in the ecosystem. ‘Náimuni’ means ‘connecting’ in Ichishkíin, one of the languages of the Confederated Tribes of Warm Springs, who own the conservation area and led the restoration effort.
Enjoy—and for more information on the project or to see past films exploring different aspects of this restoration effort, be sure to visit our video gallery, read more in-depth articles, visit the Warm Springs’ Fisheries web site, or come visit the Oxbow yourself!
By Emily Davis
Below the surface of the water, there’s a whole other world wriggling and crawling in the sand, mud, and gravels of the riverbottom. Fly-fishermen have known for years that learning the secrets of stream creepy-crawlies gives a great return on investment when it comes to catching fish. As it turns out, studying these water-dwellers is useful for more than just tying great flies. It’s also an effective strategy for tracking the progress of watershed restoration.
These stream “bugs”—known as aquatic macroinvertebrates to those who study them—can tell us a lot about the health of our streams, rivers, and lakes. ‘Macroinvertebrate’ refers to an animal that’s big enough to see without a microscope (‘macro’) and lacks a backbone (‘invertebrate’), and can include many categories of what are colloquially called “bugs”. The term ‘aquatic macroinvertebrate’ actually includes a variety of aquatic animals like snails, clams, and worms, in addition to insects like mayflies, caddisflies, and midges.
Because macroinvertebrates are sensitive to stream conditions like water temperature, pollutants, and sediment, we can use them as a barometer for water quality. Keeping tabs on abundance and diversity of macroinvertebrates is important for helping the Middle Fork’s juvenile salmon and steelhead thrive, because they are the main food source for these fish—along with other animals like lamprey, mink, otters, and so on. Tracking which groups of macroinvertebrates are present also help us track changes in stream habitat after restoration projects are completed. For example, if a project planted lots of streamside trees and shrubs to help shade the stream, over time we might see more cold-loving macroinvertebrates moving in to the neighborhood.
Justin Rowell, Public Lands Project Coordinator for the North Fork John Day Watershed Council (NFJDWC) explains further: “The various bugs each have a survivability threshold which means if we begin to not find certain bugs, or other bugs start moving in, then we know that stream conditions are changing. Or we can ID reaches that are in need of restoration compared to others.”
Rowell and his colleagues at the NFJDWC, based in Long Creek, OR, are well-acquainted with the secret riverbottom world of aquatic macroinvertebrates and why it matters for stream restoration. As part of their work for the Middle Fork John Day Intensively Monitored Watershed (MFJD IMW), Watershed Council staff travel around the Middle Fork John Day watershed collecting macroinvertebrate samples.
NFJDWC staff use two methods to collect aquatic macroinvertebrates: drift nets and benthic samples. A drift net is a net staked in the middle of the water column to catch whatever is floating downstream on the current—the random bits and pieces of debris that scientists call ‘the drift’, which includes both bottom-dwelling macroinvertebrates, and land-dwelling (terrestrial) ones that have fallen into the stream.
View of two drift nets from the downstream end.
The nets, secured with rebar, are deployed in the morning and collected at the end of the day
Side view of water flowing through a drift net
The waders and stream boots belong to Shelley Reich, Monitoring Coordinator at the Watershed Council. Here, Shelley collects a benthic macroinvertebrate sample near the Oxbow Conservation Area. Using a standard technique, she uses her hands and feet to loosen debris from river rocks. The dislodged debris, which includes many macroinvertebrates, floats into a ‘kick net’.
What does the Watershed Council collect? “Bugs we collect vary,” says Rowell, but “we expect to see a lot of caddisflies—which locals usually call periwinkles—stoneflies, dragonflies, various worms, crayfish, and others. We also find what we call 'water pennies' which are pretty neat little creatures.”
After samples are taken, they are sent to a lab where professionals identify the contents. Once samples have been processed, other scientists, from university researchers to Oregon Department of Fish and Wildlife biologists, can use the data to help answer questions about watershed health, stream restoration and fish populations.
What does the data from the Watershed Council’s aquatic macroinvertebrate monitoring tell us about how stream restoration is changing the Middle Fork watershed? Stay tuned for results!
By Emily Davis
Have you heard? After five years and as many project phases, the Oxbow Mine Tailings Restoration Project is finally complete! This ambitious project on the Oxbow Conservation Area sought to restore a large area of the Middle Fork John Day River severely damaged by gold dredging in the 1940s. Project leaders from the Confederated Tribes of Warm Springs worked together with partner US Bureau of Reclamation to re-meander the river, reconnect it to the floodplain, restore habitat complexity such as side channels, and plant native riparian vegetation.
See photos and read more about the project on the Warm Springs Fisheries website:
If you’re local, you may also want to come out to the Middle Fork and see the project for yourself! The restored area is visible along County Road 20, but for a closer look, the Oxbow Conservation Area is open to the public. Directions and more information are here.
Researcher Spotlight: University of Washington’s Erika Sutherland is All About That (Smallmouth) Bass
By Emily Davis
If you live or work along a river in eastern Oregon, there’s a good chance that on a warm summer day you’ve cast a line into the water hoping to hook a smallmouth bass. These beautifully striped fish are plentiful in the John Day watershed, providing for a lucrative sport fishery in the lower reaches of the river where they were first stocked fifty years ago by Oregon Department of Fish and Wildlife. But their ubiquity and popularity belies a more unnerving reality: These nonnative fish are predatory, capable of consuming young salmon and steelhead. As climate change alters Western rivers, this warm-water fish is making its way into the upper reaches of the John Day—headwaters that currently serve as cold-water strongholds for wild spring Chinook salmon and summer steelhead. As bass move into critical spawning and rearing habitat for salmon in the Middle and North Forks of the John Day, each new generation of vulnerable juvenile salmonids is squarely in the path of hungry adult bass.
Luckily, someone is keeping an eye on the bass. For the last ten years, researchers from the University of Washington’s School of Aquatic and Fishery Sciences have been tracking the progress of bass as they make their way up the North and Middle Fork John Day Rivers. Recently, I caught up with Erika Sutherland, a UW PhD student studying smallmouth bass in the Middle Fork, to learn more about how bass could impact the Middle Fork’s native salmon and what we can expect to see in the future.
I joined Sutherland and her two field assistants on a brisk but sunny Saturday morning at a quiet riverside campground. After donning waders, we piled into her pickup truck—every crevice jammed with extra gear, snacks, or data sheets— and headed out to the first of three field sites along the river. Our mission: to capture young bass using a seine net, a large, unwieldy tangle of lines that is manipulated in the traditional, low-tech way: grab hold and sweep it through the water, then quickly lift up to trap any unwitting fish. After we captured the fish, Sutherland would weigh and measure them, then euthanize them to take back to the lab for further testing. Sutherland’s data collection goes much further than netting baby bass. Over the past three years, she has collected countless metrics to document all aspects of bass life from egg to adult—from snorkeling 80 miles of river to count bass to tagging 100 adult bass with radio tags and tracking them around the John Day watershed.
While we navigated County Road 20’s winding hairpin turns, I quizzed Erika about her research and her three summers of fieldwork on the Middle Fork. What follows is our conversation. [Editor’s note: Answers have been edited for length and clarity.]
ED: What made you decide to study bass here in the Middle Fork?
ES: My story about becoming an ecologist is a bit strange. I spent 12 years flying F/A-18s for the Navy prior to going to graduate school. Although I absolutely loved serving my country, my childhood dream has always been to be an ecologist. When deciding which field of ecology to pursue, I found that I was most drawn to rivers and streams, both for their beauty and their complexity. When I was accepted into University of Washington, I was fortunate enough to overlap with [then-PhD student, now Dr.] Dave Lawrence who was studying smallmouth bass in the North and Middle Forks of the John Day River. I went out in the field with him and absolutely fell in love with the river and the region. This place is absolutely magical – a true treasure. I’ve now been conducting my own research here since 2014.
ED: What is your favorite part about working in the MFJDR?
ES: My favorite part is a tie between the people and the magnificent landscape. Everyone has been so supportive, generous and fun. I feel like I have a second family out here, which has been so important considering I spend 5 months a year out here away from my home in Seattle. And the beauty of the landscape speaks for itself.
ED: Least favorite?
ES: Hmmmm, in 2014 it was the rattlesnakes. I swear every day I came face to face with one. I haven’t seen as many since then, so perhaps I’ll go with cow patties on the riverbanks. It’s a bit unpleasant to be pulling yourself along a bank of river, face in the water and put your hand right in the thick of it. There’s no mistaking that squish….
ED: Besides direct consumption of young salmon, how else might smallmouth bass end up being a bad neighbor for native Chinook and steelhead?
ES: I haven’t tested the effects of smallmouth bass on other fishes, but other studies have shown that smallmouth bass can compete for food and spawning grounds, crowding out other fish and indirectly affecting the reproductive success of salmon, trout and lamprey. Bass are top predators and they eat anything that fits in their mouths…..including a lot of insects, which are important for keeping water clear, providing food for other fishes and even providing food for the bird community that feed on hatching insects from the river.
ED: Didn’t salmon evolve with predators like northern pikeminnow? If they have native predators already, why is it that a nonnative predator poses such a disproportionate threat?
ES: As it turns out, salmon don’t display the same protective or defensive responses to smallmouth bass as they do to native predators that they co-evolved with such as the northern pikeminnow, making them more susceptible to predation by bass. [Editor’s note: Interested readers should check out Kuehne and Olden 2012 and Kuehne et al. 2012 for more information.]
ED: How far up the MFJDR have bass made it, as of this summer? Especially considering the warm temperatures and low flows of summer 2015, I imagine they made some progress.
ES: Smallmouth bass were resident up to the town of Galena in both 2015 and 2016. [Editor’s note: Galena is just 18 km (11 miles) downstream from the Oxbow Conservation Area, a major center of restoration activity.] There was a pretty good-sized population that were spawning at that stretch of river. This part of the river is still too cold for the bass to overwinter there, though, so the adults moved back downstream around September and it appears the young did not survive the winter. With warm summers and short winters, however, the young are likely to survive and adults are likely to continue to spread farther upstream.
ED: Are there any limitations to bass expanding their range all the way up the MFJDR, and if so, what do you think is holding them back?
ES: This is still a very open question, but right now it looks like a combination of warm water temperatures in July and August as well as low flows are important factors in defining the upstream edge of adult smallmouth bass distribution in the MFJDR. These factors also influence where bass can successfully reproduce. Juvenile survival depends mostly on how long the summer and winter seasons are. In short, if the upstream temperature and flow conditions change to suit bass, I predict they’ll expand into that region.
ED: Based on what you have learned in your research, can you make a prediction as to how the bass invasion will proceed up the MFJDR in the next 5, 10, 20, 40, etc. years?
ES: My former labmate, Dave Lawrence, modeled future bass invasion potential. He found that by 2040, bass would inhabit the entire Middle Fork and Chinook salmon would have only 4 kilometers [2.5] of suitable rearing habitat. By 2080, Chinook salmon are predicted to be completely excluded from the river. The good news is that simple restoration efforts such as providing shade to the river by planting streamside vegetation seem to highly influence these results, protecting the upper 31 kilometers [19 miles] of river from bass in the late summer. [Editor’s note: Those interested in Lawrence’s work should read his 2014 study here.]
ED: It seems like you’ve collected just about every possible data point about bass, excluding scuba diving under the ice in January to see where they overwinter. What’s your next step?
ES: My next step will be to use all the detailed information I have about the Middle and North Fork populations of bass to build a species distribution model that can predict the smallmouth bass invasion throughout the Columbia River Basin.
ED: What does all of this mean for restoration? If bass invasion is dependent on temperature, should we be making that our first priority so bass can’t continue to gain a foothold?
ES: This is obviously a tough question, and I don’t know much about river restoration. What I do know is that temperature appears to be a critical factor for keeping the Middle Fork a salmon stream, and our models show that shading the MFJDR could bring water temperatures down. I’ve seen other projects use temporary man-made shade structures to provide interim shade to streams while restoration continues and riparian plantings grow…seems like an interesting idea.
After half an hour of dodging cattle and deer alike on Middle Fork Road, Erika pulled the truck into a gravel pullout, and we all piled out, carting a jumble of buckets, nets, and various measuring instruments down to the edge of the Middle Fork. Baby bass like to spend their days in the pondweed at the edge of slower-flowing, deeper water, so we’d spend the day seining pools. We waded into the waist-deep water and Erika explained how to drag the seine net toward the shore as quickly as possible: “Just grab the net and sprint with it.” Sprint? Hmm…..I looked skeptically at the heavy seine net, doubting my ability to simultaneously maintain my balance in flowing water while hefting the net with enough agility to capture any bass, which are known for their quick swimming abilities. But I was here to help, so I gamely grabbed a corner of the net and crouched into position, awaiting the signal from Erika.
By day’s end, we were all soaking wet and freezing cold, with aching arms, but everyone was smiling—we’d netted dozens of bass and gotten the data we’d come for. As we drove back toward a warm meal and a fire at camp, we wondered aloud: What does the future hold for the Middle Fork’s native salmon and steelhead in the face of this invasion of the salmon-snatchers? Do restoration efforts provide hope for maintaining the Middle Fork as a salmon stronghold, and keeping the bass out? Time will tell—but thanks to Erika Sutherland’s dedicated research, we have more tools in our toolbox to help answer these questions.
Fritts, A. L., and T. N. Pearsons. 2004. Smallmouth bass predation on hatchery and wild salmonids in the Yakima River, Washington. Transactions of the American Fisheries Society 133:880-895.
Kuehne, L. M., and J. D. Olden. 2012. Prey naivety in the behavioural responses of juvenile Chinook salmon (Oncorhynchus tshawytscha) to an invasive predator. Freshwater Biology 57:1126-1137.
Kuehne, L. M., J. D. Olden, and. J. J. Duda. 2012. Costs of living for juvenile Chinook salmon (Oncorhynchus tshawytscha) in an increasingly warming and invaded world. Canadian Journal of Fisheries and Aquatic Sciences. 69:1621-1630.
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Lawrence, D.J., B. Stewart-Koster, J.D. Olden, A.S. Ruesch, C.E. Torgersen, J.J. Lawler, D.P. Butcher, and J.K. Crown. 2014. The interactive effects of climate change, riparian management, and a non-native predator on stream-rearing salmon. Ecological Applications.
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Flexing Our ‘Mussels’: Volunteers Help Save Over 2,500 Freshwater Mussels During Salvage on Oxbow Conservation Area
By Emily Davis
If you’ve walked along the banks of the Middle Fork John Day River while fishing or boating and looked carefully, chances are you’ve seen piles of pearlescent freshwater mussel shells: remains of an otter or muskrat picnic. But few people have seen freshwater mussels alive underwater, and even fewer know anything about these mysterious creatures. Here in the Western U.S., freshwater mussels are severely under-studied, but we do know that, like their aquatic neighbors salmon and steelhead, they are experiencing a drastic decline in many places, including the Middle Fork John Day.
Big river restoration projects, like the Oxbow Tailings Restoration Project on the Oxbow Conservation Area, are meant to improve conditions for native fish and mussels alike. These projects can involve drastic measures like de-watering the old channel to route water into the new channel; or using heavy equipment to re-shape an existing area by digging. This can put river dwellers, particularly those that can’t move far on their own, in a pickle. Restorationists try to save as many lives as they can by collecting and moving animals to new homes that won’t be dewatered or disturbed during the course of the project. This type of operation is called a ‘salvage.’ Fish salvages are most common, and mussels are often forgotten. The good news is that freshwater mussels are starting to get more attention from stream biologists and restorationists. As they do, efforts to save mussels before beginning big earth-moving river restoration projects are becoming more common.
Why should we bother to save these un-charismatic creatures? After all, a freshwater mussel’s main skill set may appear to be impersonating a rock. In fact, mussels play a key role in stream and lake habitats across the globe.
Freshwater mussels are filter-feeders: they hang out on the bottom of rivers, streams and lakes and pump water into their bodies, straining out tiny bits of food as they do so. One mussel can filter several gallons of water per day, so together, the thousands of mussels in one mile of river contribute mightily to cleaning water and clearing it of parasites and pollutants. By drawing particles out of the water and excreting them, mussels make nutrients available to other bottom-dwelling animals. Like earthworms in a garden, mussels help aerate riverbottom sediments. Mussels are also an important food source for animals like raccoons, muskrat and otters. Some species, like the Western Pearlshell—found here in the Middle Fork— can live for nearly 200 years: imagine how much water a centenarian mussel may have filtered in its lifetime! Mussels are also an important traditional food for indigenous peoples, including the Confederated Tribes of Warm Springs.
As the fifth and final phase of the Oxbow Tailings Restoration Project kicked into high gear a few weeks ago, Tribal biologists prepared to conduct a freshwater mussel salvage. Over 30 volunteers from partner agencies ODFW, Malheur and Umatilla National Forests came out to assist with the effort. 95% of the volunteers had never worked with freshwater mussels before, so it was an excellent opportunity to get acquainted with these important mollusks.
Crew members donned wetsuits or drysuits, snorkels, and stream boots, and climbed into the river for a crash course in mussel ID. Within just six hours, the teams of volunteers had removed over 2500 mussels from the riverbed in the salvage zone—an astounding number in less than a mile of river. Because it was too hot to continue working that day, we held the mussels overnight in a walk-in cooler, where they stayed moist and cool.
The following day, another crowd of eager volunteers helped “plant” the mussels into their new home, a gravel-bottomed stretch of river just a few kilometers upstream of the restoration salvage area. With so many helping hands in the water, the impossible-seeming task of individually relocating 2500 mussels one-by-one was accomplished in just three hours. Sarah Gaulke, from the Malheur National Forest, had this to say about the experience: “It was great working together with all the partners to help out this project. I also enjoyed being able to use my muscles to help the mussels!”
When the mussel salvage was over, volunteers left the salvage zone with a new appreciation for these amazing animals; and thousands of mussels left the salvage zone with their lives.
Want to learn more about the amazing freshwater mussel? Planning a restoration project and curious about how best to organize a successful mussel salvage? Visit http://www.xerces.org/western-freshwater-mussels/ to read up on these humble creatures and what you can do to help protect them.