Re: NANFA-L-- Re: Keeping Sculpins

Peter Unmack (peter.lists at)
Sun, 18 Sep 2005 10:17:20 -0500 (CDT)

On Sun, 18 Sep 2005 EELReprah at wrote:
> In a message dated 9/18/05 2:15:35 AM, Moontanman at writes:
> Now, on the other hand, river fish do not experience that same gradient,
> except, as you point out, in caves or crevices or backwaters.

That isn't totally true. In any river where the water passes through the
substrate (i.e., non-mud/silt based substrates) you can get quite
different water temperatures at points were the water exits the substrate
(usually quite cooler, at least in summer). This is certainly common in
Arizona streams.

Peter Unmack
Red River, Oklahoma
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