On Thu, 15 Dec 2005 00:36:33 -0600, chas
wrote:

(snipped)

Interesting. I know what you mean, but these disturbances all follow patterns
that the fish are used to, when the pattern changes I think (but don't actually
know) they are alerted. It could be much like the way we can pick a familiar
voice out of a throng, or recognize a friend at a distance by some subtle
nuance of motion. I'm going to think about testing this, off hand it seems
like it would be hard to get a good test that wasn't muddled by too many
variables.


Try to walk like a deer? They generally step in the water one slow
step at a time, stop and have a drink, maybe do another bodily
function or two, and then move on a bit or get out of the water. I
don't know what they do between knee level and swimming level, though.
But there are very often deer walking / swimming across trout streams.
Otters disturb the bottom, too. Think of all the things that do
disturb the silt and then try to move like that?

Cyli
r.bc: vixen. Minnow goddess. Speaker to squirrels.
Often taunted by trout. Almost entirely harmless.

http://www.visi.com/~cyli
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