Day
9 Monday July 17th
2017 (
Tshimikain
Creek : Electro Fishing for Rainbow trout.
The
Tshimikain was a small with various non-native and native species.
The counts of Rainbow were high according to Program Manager Casey
Flannigan.d Casey was a part of my crew and we had fun netting
Rainbows, Brown Trout, Sculpin, suckers and pike minnow. Crew leader
Nick (BUB) had us in waders as we trekked through between ¼ and ¾
of a meandering, up to 4 ½ feet deep running water.
The rainbows were analyzed for weight, length, genetics, and were PIT
Tagged above 60 Millimeters. Casey was very insightful I got a chance
to talk with her a bunch. Casey was working on her masters degree
through Eastern Washington University and her research was on Redband
Trout physiology; a nightmare of a thesis that required hours upon
hours upon hours of monotonous lab work. Sheesh, basically it was an
experiment that analyzed differences in size and change in size under
certain conditions of Redband,,,,I can laugh and only imagine the
extremely tough variables to analyze, not to mention the statistics
involved.! I took away good information about the redband and the
adaptations that take place during smoltification. Smoltification
does not occur in all redband! I thought it very interesting that
only a certain population turn anadromous and become steelhead.
Apparently Scientists are still questioning what happens and/or does
not happen to redband that allows or disallows certain fish to become
steelhead. Also very interesting is the physiology of redband allows
multiple spawning over a six year life cycle. Spawning itself can
completely drain a steelhead or fish so much so that it can easily
cause mortality in many other species of fish; and it does. The
redband is a tough tough species and I have a new respect for them
from talking with Casey; she also mentioned that the physiology and
strength of the steelheads also allows the fish to survive very cold
waters and very warm waters that kill many other aquatic biota. I
walk away with new knowledge as a fisheries science enthusiast.
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