Claire Corlett

Fish Food, Fish Tanks, and More
Seeing climate change in bugs and salmon

Seeing climate change in bugs and salmon

Captioning provided by
Disability Access Services at Oregon State University. [program music] [creek water babbling] [bristles scrubbing] David Wooster: You take this scrub brush and you take bigger rocks– you scrub off the bugs
in front of the net. You’re dislodging the bugs
that are on the stones, that are underneath the stones. This is called a
d-net or a kick-net, and this is a sampler for
sampling in riffle areas, which are these fast-
flowing shallow areas like we’re standing in. You can actually use the
invertebrates that are in a section of the stream to tell you something
about the water quality. You want to know a little
bit more about what is the life that’s actually inside the stream, and we can use the invertebrates
that we find in there as a metric. Part of this project then
was designed to understand whether or not there is
an interaction between projected climate change,
impacts on water availability, and the condition of streams based upon vegetation and also abundance of these
important invertebrate groups, the native pollinators
and the natural predators. Sandy Debano: More streams
will shift from being perennial to intermittent. In the summer, you’ll get
less plant growth occurring, so things will dry out, you
won’t have the floral resources, you won’t have the moist habitat. This will impact the
quality of that habitat for a lot of different organisms,
including birds and wildlife, but also for invertebrates and insects, and so it’s no longer going to
have green growth and flowers, and so you’re going
to have, potentially, decreases in native pollinators. David Wooster: Under the
climate change scenarios there is this idea that
there will be less water late in the summer when crops
are going to need water most. The people that are
going to be hit hardest are going to be the
irrigated agriculturalists, and then potentially that’s going
to have an effect on everybody because that’s an important driver
of the economy in the region. [creek water babbling] [bucket clanking] A lot of efforts are
being made in this area to improve conditions for salmon. There’s a lot of concern
about the salmon populations throughout the Pacific Northwest, and whether we’re going to continue
to have them into the future. What type of condition are they in? Part of our work is motivated
by trying to understand the condition of the streams
that the salmon spawn in and that the salmon juveniles rear in before they go to the ocean. How important is it how we manage the land
around the streams, and determining the
condition of the streams, and then potentially the
impacts that we’re having on salmon populations. I think they are a good
metric of just simply, ‘What are we doing?’, because salmon need really
clean rivers and streams, but we also need water
for a lot of other things. It’s going to be a very
interesting test in the future of can humanity deal with
continuing to have salmon but also continuing to have this burgeoning growing human population that needs more and more food, that needs water for consumption, and are we going to be able
to balance those two things and have both? [tractor engine rumbling] [dog barking] [program music] [END]

Leave a Reply

Your email address will not be published. Required fields are marked *