The Dish on Fish
Check out the latest happenings from fish biologists at the Columbia River Fisheries Program Office.
Wednesday, November 26, 2014
Pathways Perspective
Kyle Beard is presently a Pathways Intern with the Columbia River Fisheries Program Office.
Well I’m now past the fall midterm point at Washington State University-Vancouver, and everything is going great. It has been a lot of work doing both school and interning (days just don’t seem long enough), but it is all working together nicely and really complementing one another. There seems to be a lot of crossover learning and I couldn’t think of a better way to learn about conservation biology than this.
In each of my classes I have been able to relate something to my work here at the U.S. Fish and Wildlife Service’s Columbia River Fisheries Program Office, and vice versa. In my Environmental Science course we have been utilizing the creek and ponds on campus to study water quality for things such as dissolved oxygen content, pH, and temperature. We have taken soil samples to look at composition, pollution, and runoff of nitrogen and phosphorus. And we have studied marine fisheries and how they are affected by illegal fishing, derelict fishing gear, and a warming acidic ocean. All of these of course relate to salmon habitat and it’s great to see how it all connects with what I am doing here at the Service.
In my Chemistry and English courses there isn’t such a direct relationship but there is still some crossover. With Chemistry we are of course in a lab running experiments and learning proper lab techniques which makes my time in the lab here at work more comfortable. In my Technical Writing English course we have been pouring over documents to understand the reader/writer connection and how to write to a specific audience. I, of course, took the office’s Marking pamphlet from work to use for my first project.
Things have been really busy here at the office too considering its fall and adult salmon are returning. This means that much of the Marking and Tagging crew has been out of the office spending all their time at hatcheries either spawning adult fish or marking juveniles. With the fish being spawned, there is always a certain number that need to be sampled to determine run age composition. In addition, the ones with CWT’s need to be sent back to the lab to have coded wire tags extracted and read. This has been where I have spent the majority of my time.
The freezers have been completely full of salmon snouts and when it seems like I’m making headway, crew members return from the hatcheries with more. I guess with the great returns this year I can expect to be in there a while longer.
The only frustration I have had managing my school schedule with work is that I hardly ever have the time needed to go out on the full-day work trips to hatcheries. My classes are dispersed in such a way that my longest time available to work is a five-hour shift, which with the commute time makes it unrealistic to get out in the field. I have already planned to fix this for next semester.
I have been able to make a couple of trips, though, and one of those was a real highlight of my time here at the Service so far. This was my visit to the Abernathy Fish Technology Center. It was a real treat to be shown all of the projects that go on there, and by “there” I mean west of Longview (I’d never heard of it before either). This place has amazing capabilities and does extremely important work to aid in conserving salmon, steelhead, and other species.
For example, they have a genetics lab that processes samples to identify hatchery and wild fish and further the understanding of how they interact and use habitat. This is definitely a big topic and necessary for many reasons. Not only are they completing their own studies, they have a rapid response field kit that allows biologists in the field to collect a sample, ship it overnight to the lab, and obtain immediate results. This greatly improves the ability to make decisions and manage fish in real time.
There’s also a nutrition research laboratory onsite that tests the feed being given to hatchery fish. Since hatchery fish are raised on feed alone until they’re released, it is extremely important that they are getting all of the needed nutrients from the feed. They can also make small batches of experimental feed to see how it affects diet.
Another laboratory is set aside for testing fish health and physiology. From what I was told, it is like having a physical done at a doctor’s office. This helps to identify and document trends is fish health and behavior.
Overall, my experiences so far have been great. Everyone I have worked with at the Service has welcomed me and been willing to share their knowledge. I have never once felt like I was just some new guy or a burden on time.
I’m looking forward to 2015 with my new school schedule and being able to get out and experience some other things. It sounds like I will be helping out with some classroom activities in a program that works with 4th graders. This should be fun and I will be sure to write about it next time.
Tuesday, November 4, 2014
Pathways Perspective Chapter 1: Tag, You’re It
Kyle Beard is presently a Pathways Intern with the Columbia River Fisheries Program Office. Throughout the year he hopes to share some of his experiences in this series of blogs.
It
was almost a month ago when I first walked through the door at the U.S. Fish
and Wildlife Service’s Columbia River Fisheries Program Office in Vancouver, WA.
Despite the short time, it’s already been quite a journey. My first day here
was also my first official day as a student at Washington State University – Vancouver,
and I was a little anxious to get it all started.
I am
a Junior working towards a Bachelor’s of Science degree in Environmental
Science. When I received the call in August 2014 that I had been chosen for the
Pathways Intern position, I couldn’t have been more excited. My whole reason for
going back to school is to eventually work for an organization like the Service, and
here I am. Now it’s time to make the most of it and learn as much as I can in
the hopes of finding a position I am truly passionate about. My original
thoughts were that I want to work in law enforcement, and maybe that will
remain the case, but now is my chance to see the science behind the
conservation.
A
little about my background: I grew up and went to school in the South Puget
Sound region, including Eatonville, Roy, and Tacoma. I have a huge family
scattered from Bellingham to Vancouver so I know Western Washington very well.
I graduated high school early so I could join the Marine Corps and see the
world, which I did, but after 4 years I was ready to come back home. I got
straight to making money as a bartender in downtown Seattle, and for a number
of years that was a blast, but I couldn’t see myself doing that forever. I
finally made the decision to move to Vancouver, in with my grandmother, so I
could focus on school and get a degree.
Much
of my time so far has been spent with the Program Office’s marking and
detection crew consisting of 7 Fish Biologists and 4 Biological Technicians.
Now I knew that salmon are tagged but I had never thought much about the
details of how or why. In just this first month I am beginning to see the big
picture. The tags identify the fish by date and origin which is used when tracking
fish and determining how many have returned to spawn.
Within
the first few days I was able to go out to one of the Service’s marking trailers
and watch the Coded Wire Tags being placed into juvenile fish (more on the tags
later). The fish, not much bigger than my finger are corralled from one
raceway, taken to the trailer to be tagged, and then sent down a tube into
another raceway.
The
trailer itself was fascinating to watch. Marking salmon and steelhead is a
high-tech operation involving computers and automation. There were six people each at their own
station working nonstop to tag each and every fish. If they missed one, a
magnetic tag reader in the out tube could tell and it was sent right back to be
tagged correctly. I’m not sure how many fish were tagged that day but it was a
lot.
I
have also worked in the Office’s lab to retrieve the tags from the snouts of
the spawned adults. The snouts are half frozen and we have to cut into them to
find the tags which seem no bigger than a sliver. We know it’s in there
somewhere but finding it is the trick. The easiest way to do this I’ve learned
is to first look in the “target area” towards the tip of the snout in the soft
tissue cavity. If it’s not there we just have to narrow it down by cutting the
snout in half and using the magnetic reader to see which half it is in. We toss
out the half it is not and continue halving it till we find the tag.
After
removing the tags, we then place them under a microscope to read the code which
tells us exactly when and where the fish was raised. It amazes me that
something so small could actually have numbers inscribed on it.
Another
thing I’ve done in the lab was look at fish scales under a microscope. I had no
idea they could be read just like tree rings to determine the age. All of this
data is compiled and entered into a large database that helps fisheries scientists
tell a story about the fish that are returning.
In
September, I also had the opportunity to witness the hatchery spawning
operation up at Spring Creek National Fish Hatchery, boy is that wild. There
were more than a dozen people, all with different and specialized jobs,
processing the fish. Hatchery staff first ‘crowd’ the fish from outside
raceways toward the spawning area, anesthetize them, then use a hydraulic
elevator to bring the fish into the spawning building. Another employee runs
the fish through a machine called a ‘pescalator,’ which helps identify which
salmon might have a Coded Wire Tag or a Passive Integrated Transponder tag in
them.
Kyle helping at the bio-sampling station |
At a
separate station, employees or volunteers: they help too, remove between
3,000-5,000eggs from each female. Another person fertilizes the eggs with milt
from the males. The eggs then get passed off to a station to be stirred and
rest for a minute—this is when fertilization happens--before being whisked away
to the incubation building. Meanwhile, the fish are passed to the biologists at
the bio-sampling station where the snouts with tags are removed, a couple
scales are removed, and the fish are measured for length. There are even fish health experts at their
own station collecting kidney and tissue samples to check for viruses and
diseases.
All
of these experiences have given me a better picture in my mind of the salmon life
cycle for hatchery-raised fish--as well as the role the Service plays in
helping manage Northwest salmon and steelhead populations. They take millions
of eggs and raise them until the fish reach their natural migration age at
which point they are tagged and released. The fish go live their fishy lives
and then return to the exact place they were born. All of the data the Service
collects is important to help track fish movement, migration, interaction with
wild runs, and help set the numbers available for harvest. The entire operation
is very impressive, and I am excited because I know this is just a starting
point.
Tuesday, October 21, 2014
Letting the Rivers Teach: Of Memories and Science
By Paul Bakke, Geomorphologist, Washington Fish and Wildlife Office
All science begins with observation. Although that statement may seem too obvious
to mention, its truth becomes more difficult to hold when we are dealing with
rivers, which can look so different from winter to summer, and which can seem
to present the same features for years, only to change radically overnight. After all, the rivers have been here much
longer than each of us, so it becomes a challenge to recount their story
accurately. What we see today is merely
a snapshot in time. Change that occurs
slowly tends to be imperceptible to us. And
from the long-term perspective, what we remember a river to be like over our
short lifetime may not, in fact, be the normal or stable form.
The mark of a good scientist, like Luna Leopold, whom I
introduced in a previous post (http://wordfromwild.blogspot. com/2013/08/letting-rivers- teach-leopold-revisited_12. html) is to be able to synthesize a great many
observations into a coherent story relating what we see at one point in time,
that is, the form of the river, with universal natural processes, which not
only act upon this river, but on all rivers, throughout time. To reiterate, the “form” of a river, that is,
its shape, is like a snapshot. Processes, such as erosion and deposition of
sediment, are the forces that act to produce and change that form. Processes,
you will recall, are more like a video than a snapshot. And to study these forces of change, we need
to be patient, carefully documenting the way things change over rather long periods
of time, and observing many different rivers to look for patterns.
Seeking rivers that still had their natural processes of
erosion and deposition mostly intact, Luna Leopold and other scientists made
careful observations and measurements of channel form, and then put these
observations together to create mathematical models like those in the graph,
below, that allow us to predict the stable form of a river channel. For example, in Western Washington, a river
with a watershed area of 100 square miles would be expected, on average, to
have a “bankfull” width of 93 feet and depth of 4.4 feet, for a water discharge
of 2350 cubic feet per second. “Bankfull”
refers to the condition when the channel is full to the top of its bank and
just ready to spill over onto its natural floodplain. Because the floodplain is such a consistent
feature of alluvial rivers, the bankfull channel dimensions work well (at least,
much of the time) as an index to compare one river with another, and to judge
whether a river is in a stable condition or not.
In natural settings, the channel slope, curvature, width,
depth and sizes of rocks making up the streambed adjust together into a
configuration that allows an approximate balance between erosion and
deposition. When such a balance exists,
the river can persist in roughly the same shape or form for long periods of
time. The channel is stable. Note that “stable” does not mean “static.”
Streambanks will erode, but that erosion will be approximately balanced by
sediment deposition. So “stable” means
that the shape, in terms of average width, depth, slope and curvature, persists
over time, even though the river may relocate its channel as it continually
transports and rearranges the sediment that comprises its banks and bed. If the form of
the river is changed, this balance will be upset.
The position of “bankfull”
can serve as a clue for identifying imbalance.
Excessive erosion causes the streambed to drop in elevation, making it
impossible for the moderate floods to reach the floodplain. In other words, the “top of the streambank”
no longer functions to disperse floodwaters and reduce erosive forces. Alternatively, excessive deposition reduces
the capacity of the channel to contain its flow, causing the channel to widen
by eroding its banks. The river no
longer is bounded by the “top of bank,” and will flow across the floodplain
more often, eroding new channels and depositing sediment in new places. In both of these examples, the “bankful”
channel dimensions have been disrupted.
And there are other ways of disrupting the form of a river, such by
dredging it for depth or for gravel mining, or by artificially straightening or
confining it, as in the photo below.
Why do we care about this?
A river in balance is self-sustaining, meaning its form and thus its
habitat features will remain consistent over time. A river locked into a form that doesn’t allow
a balance of processes will always be at risk of breaking out of its confines,
of tearing itself apart. This
instability puts habitat and infrastructure and investment in restoration at
risk.
A river that was modified years ago may fool us into
thinking that it is stable. But the
processes of erosion and deposition are relentless. Eventually, something breaks. When this happens, it starts the slow process
of change back to a form that balances the processes of erosion and deposition. That
form, ultimately, may be quite different from what we remember. Meanwhile,
we have a choice. Do we let nature take
its course, allowing the river time and elbow room to regain a stable
form? Do we put it back into its former modified
state, knowing full well that we will be doing that again and again? Or do we
intervene by constructing a stable form, speeding up the recovery and giving
the river some room for future adjustments?
Scientists have the difficult task of figuring out what the
consequences of these choices will be.
For this, it is essential that they collect measurements on rivers that
still have their processes intact. These
rivers can serve as models for a resilient, self-sustaining channel form. A resilient
form is capable of surviving disturbances, such as large floods, with few
long-term effects. Recovery tends to be
more rapid, and in the direction of known, stable channel forms. More about what those forms are in a future
blog entry!
Friday, August 15, 2014
Pacific Lamprey Geocaching Adventure
Geocaching enthusiasts and friends of Pacific Lamprey, please join us in a new adventure. Travel bugs have been launched in the Pacific Northwest in four different locations. One lamprey travel bug is hiding in a geocache somewhere along the mouth of the Columbia River at a historic site in Washington. Another is hiding somewhere in a culturally-significant and historical site on Yakama Nation land in Toppenish. Two more are soon to be adventuring around the Portland area and Clearwater Basin in Idaho. (Check here for new information.) Please help them migrate. Don't forget to take your picture with the bug and log your entry into geocaching.com.
For more information:
Pacific Lamprey Geocaching Fact Sheet
Pacific Lamprey Geocaching Project News Release
Pacific Lamprey Travel Bug |
For more information:
Pacific Lamprey Geocaching Fact Sheet
Pacific Lamprey Geocaching Project News Release
Wednesday, July 23, 2014
Connecting Children with Nature
There’s no doubt that fishing and camping as a child had an
influence in my career choice and implemented a lifelong conservation ethic in
me. In particular, my dad and my
oldest sister’s-husband fished with me from a very young age and through my teenage
years and family camping excursions occurred often. Some of my best memories growing up are fishing
trips with my Dad in western South Dakota.
Now that I have a family, spending time outside, camping and
especially fishing are activities we want our girls to experience while they’re
growing up. They’re at ages where their
curiosity is sky-high and it’s just a matter of getting them out to experience
nature and explore.
They both have been fishing before but this year we bought
both of them fishing poles in the winter and told them they should get used to
using them for the summer during our camping and fishing trips. After the girls endured an excruciating
5-second introduction of casting by me, the poles were immediately snatched from
my hand for their own attempts with a sponge fish or a bobber on the end of the
line so nobody gets hurt. Frustration
ensued but after a short period of coaching and correction they both figured it
out. Periodically over the next few
months, I would see one or both of the girls with their poles outside casting
toward the tree in our front yard, or even the neighborhood kids having a turn
at casting. A few times we had to
establish that casting was not something that needed to occur in the living
room near breakable items but could happen in the driveway or yard anytime they
wanted to practice.
I was cleaning out our garage this spring and had our
camping gear strewn about but was able to capture some of their spontaneity
with the poles and excitement for our two big summer camping/fishing trips. Notice the excellent technique!
Our first trip this summer fishing
and camping was a big success! First I
should define success ….. getting the girls out in nature and getting a pole in
their hands. We didn’t catch fish on the
trip but here’s some of what we did and talked about:
·
Will we eat what
we catch? This was discussed on the way
to the lake with our poles and was a fairly in-depth and long discussion almost
exclusively between the girls but they decided that they should if it was big
and would not if it was a “kid” fish.
Our youngest had pointed out to me that in the movie Brave that Merida and her mom, Elinor,
caught and ate fish together when Elinor was turned into a bear. I said that our fishing would be similar but
different.
·
Salmon eggs vs.
worms vs. lures. What are lures and how
do they look attactive to eat? Our oldest compared lures to earrings like Grandma
wears but not the same thing.. a good observation, I thought.
·
Osprey and what they are doing flying above the lake
(we also saw them dive on fish and carry their meals back to eat). Very exciting!
The girls deducted fish were present in the lake and the potential to
catch something was palpable with the osprey successfully “fishing”.
·
What are those
things swimming by the shore? (Newts) Are those fish? (Amphibians) So they are
frogs? (Similar). Why aren’t they fish? (scales vs. skin and terrestrial and/or
aquatic lifestyle). Will we catch them? (maybe). We followed them along the shoreline watching
them swim, pop their heads up and search for food. What do they eat? (good question). What’s that? (A crayfish) Is it alive? (after a stick invesitgation by
the girls it was determined dead). Can
we touch it? (Sure). Are there more?
(Likely). Will we catch them?
(Maybe). I said bigger fish likely eat
them in the lake which got our older daughter staring into the distance to
paint that mental image, which appeared enthralling by her expression.
Anyway, a small snippet of our
excursions and all told and we probably fished for a total of 3 hours over our
entire camping trip before rainy weather, cold or wind played a role for
deciding to move on. Not as much time
fishing as we had hoped but still a huge success and a lot of fun for them.
If you’re thinking about how
to get a kid out fishing or into nature this year there’s always opportunity to
be had. The Service has a great
introductory website to just getting kids out in nature here. Also coming up September 6th from 8:00
am - 1:00 pm is Kid's Fishing Day at Carson NFH (information will be
posted here). This event
is great in that all the poles and gear are provided for the kids, Service
staff will help them fish, they are nearly guaranteed to catch something in
minutes, the catch is cleaned and bagged, and you might even get a momento like
this.
We plan on meeting some of my
family in Glacier National Park later this summer for a week of camping,
hiking, fishing and just exploring nature.
I know the girls are going to have a great time and we can make some
memories.
Submitted by Rod Engle
Wednesday, July 16, 2014
Connecting Kids to Nature: Skyline Crest Youth Come to the Columbia River Fish Office
Sally Jewell, the Secretary of the Interior Department,
announced a national
initiative earlier this year to engage and inspire young people to connect
to nature. She confirmed her commitment
to “welcome a new generation of young people into public land stewardship, into
science”.
The Pacific Northwest Region of the Service provided a little
funding in “mini-grants” to help deliver on this promise. So, we partnered with Vancouver Housing
Authority Community Family Resource Coordinator Sharon Linn and Skyline Crest
Community Health and Wellness Advisor Sara Angelo to help connect underserved
inner city kids to nature.
Our “Take Time to Connect to Nature” project aims to add an
innovative component to an inner city low income housing facility by providing
hands-on and in the field nature experiences. Using a nearby neighborhood
greenspace and field trips to other Pacific Northwest destinations, mentors and
volunteers lead youth groups in activities such as a FWS hatchery visit and guided
nature bike rides or hikes. The project
is a great collaboration – New Season’s grocery store even teamed up to help
provide the kids with healthy, delicious lunches on some of the field trips!
In early July, 20 Skyline Crest youth from ages 7 to 15 came
to a three-hour Nature Day at our Columbia River Fisheries Program
Office. Ten of our staff members led
the kids through a variety of activities to give them hands-on experience with
nature, native species, and scientific methods.
We were impressed and inspired by how much fun the kids had
learning about salmon, owls, and radio telemetry. They showed so much natural curiosity and a
love of science….they had a blast picking out rodent bones from barn owl
pellets and dissecting big spring chinook salmon!
They grasped the salmon life cycle, from freshwater to ocean
and back again, and made bracelets with various beads representing each life
stage. Creativity and artistic flourish
were present as they made “gyotaku” Japanese-style fish art prints to take home.
The day really underscored that every child is a
naturalist…given the opportunity, time and access to the natural world they
will apply curious and creative minds to interact with and explore nature. Who knows what effect these early experiences
might have or where they might lead a child to later in life …our job is to
make the connection so they have the opportunity to forge their own path.
Monday, July 7, 2014
Working with the City of Portland to Restore Urban Stream Habitat
The U. S. Fish and Wildlife
Service is working with the City of Portland Bureau of Environmental Services
to evaluate the success of aquatic habitat improvements in Tryon Creek. In 2010, the City of Portland completed a
900-foot off-channel aquatic habitat enhancement along the Willamette River. Habitat improvements included floodplain
connectivity, removal of invasive species, and installation of root wads and
boulders.
In 2012, the U. S. Fish and
Wildlife Service began an intensive monitoring program to assess community, relative
abundance, and temporal use by fish in the improved area. Sampling occurred monthly throughout the year
and weekly in the spring, sampling will continue in July 2014 at the same
frequency. Backpack electrofishing and
seining is used to sample from the confluence to the Oregon State Highway 43
culvert. All captured fish are identified,
checked for external markings, measured, and tagged with a passive integrated
transponder (PIT) tag. Genetic samples collected
from salmonids are transferred to the City of Portland. To determine temporal fish use of the
confluence habitat, two PIT tag antennas are installed at the mouth of Tryon
Creek. All PIT tagged fish moving over
or through these antennas have the opportunity to be detected and identified
before entering or exiting the Willamette River.
Sampling the mouth of Tryon Creek |
Resident fish such as adult and
juvenile cutthroat trout, rainbow trout, and hybrids of the two were identified
in the confluence habitat along with outmigrating juvenile steelhead, Chinook,
and coho salmon. Native fish were more
abundant than nonnative fish and coho juveniles were the most abundant species observed. Coho and Chinook were detected emigrating
after an average 37-44 days suggesting the habitat serves as a refuge for
outmigrating juvenile salmon from elsewhere in the Willamette River basin. PIT tagged Chinook and coho salmon (originating
from upstream locations in the upper Willamette River basin and Eagle Creek)
utilized the Tryon Creek confluence as part of their migration.
The Tryon Creek Confluence
Habitat Enhancement Project improves aquatic habitat in the lower Willamette
floodplain and provides refuge for native fish species. Information collected from this assessment
will aid the City of Portland in determining if the project is meeting its
goals, gauging if the site is achieving desired function over time, and
improving the design of future projects.
This project is relatively small
compared to the Willamette watershed overall, however, the combined efforts of
habitat improvement and fish monitoring lead to a larger product. This collaboration improves the design of
future projects benefitting the entire Willamette River and supports the U. S.
Fish and Wildlife Service’s mission to work with others to conserve, protect
and enhance fish, wildlife, and plants and their habitats for the continuing
benefit of the American people.
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