Thread: Harris Perch; Thermocline

Charles and I had a chance to hit Harris today between showers. Found one section in which Charles caught two perch at the same time. We got out of that area fast!!

Thermocline on Harris was a little different than last Saturday. It was not as high in the water column.



Have a question about the first screenshot. It looks like the thermocline is doing a stepdown over the channel. I don't remember seeing this before. Is there enough current in Harris to mix the water up over the channel?

Appreciate the heads up JL. I haven't been to Harris about four months, but I've been gettin' the urge to give it a try pretty soon. As for your question: I believe the colder water is heavier and therefore falls to the lowest point (the channel) causing a bit of a saddle-like depression from where the colder temps fall. I believe you will notice the thermocline continually building from bottom to top as it gets later in the summer months. I think the step down as you call it is because the structure feature itself is sloping toward deeper water. The water stratifies in layers.

It is possible that the channels do have some current when they open up the flow to the reactors or let water out of the dam. There would have to be some circulation, but who knows just how much.
I wouldn't have left those white perch bitin'. I love to catch and eat 'em.

Thanks for sharing and tell Charles to zip up his fly... since this is a family-oriented community and all.