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January 3rd, 2005
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Q. Two years ago, me and a buddy found a mountain stream flowing into the Wenatchee River in eastern Washington that was full of rainbow trout (and one chocolate brown bull trout). Most fish were of very modest size, 6-8 inches, some as large as 10 inches in length. It was late July, very hot, and the fish were feeding aggressively on almost anything we put into the water. Last summer we showed up at the same stream and there was hardly a fish to be seen. There was lots of food, insects all over the place. What do you suppose happened? This stream flows out of a protected National Park where there is no logging. But, in the preceding winter there was exceptionally high snowfall and the winter lasted longer into spring than usual. The water flows in the river were high all summer long because of the large snow pack; in fact it was the middle of August before we could even fish in the stream due to high flows. I had assumed this kind of water would help the fish population. Where did the fish go?
A.
Without knowing more about the stream and its
history, it just isn't possible for me to come
up with a reason for the disappearance of the
fish. I think that you could probably get a better
answer if you contacted the local WDFG fish biologist
for that region. He/she might know of something
that impacted the fish population or whether this
fluctuation might be typical of the streams in that
region.
I know of several tributary streams to the Wenatchee R.
that flow out of National Forests, but none that flow
from a National Park.
~ C. E. (Bert) Cushing, aka Streamdoctor 105 W. Cherokee Dr. Estes Park, CO 80517 Phone: 970-577-1584 Email: streamdoctor@aol.com
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The 'Stream Doctor' is a retired professional stream ecologist and
author, now living in the West and spending way too much time
fly-fishing. You are invited to submit questions relating to
anything stream related directly to him for use in this Q & A Feature
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