Anyway, my first thought on the water flowing into the creek attracting the
minnows was maybe it has a higher dissolved Oxygen concentration. I'm sorry
to say that the majority of tributaries to our rivers,-in-least around
Birmingham, would be more likely to repel fish and other aquatic life.
I appreciate all the pictures and descriptions I've seen so far...I have a
lot to learn.
Chris
-----Original Message-----
From: owner-nanfa-l-in-nanfa.org [owner-nanfa-l-in-nanfa.org] On Behalf Of
dlmcneely-in-lunet.edu
Sent: Wednesday, July 12, 2006 8:53 AM
To: nanfa-l-in-nanfa.org
Subject: Re: NANFA-L-- Habitat questions and more fish pictures
Dan, Please let me express great thanks for all your work and contributions
to this list.
So far as a published glossary, I don't know of one as such. Most limnology
and stream ecology books do have terminology included.
I have seen in print a small waterfall like you described-in-a confluence
called a "pouroff." As with any waterfall, the body below, if a pool, is
called a "plunge pool." If the inflow you saw is from ground water, it
would be referred to so, as in "ground water seepage." Slight surface flow
would likewise be referred to simply as such. Investigation as to source
might be warranted, because if from a swamp or marsh, for example, that
would be quite different in relation to the stream than if from recent
rainfall. In that the shiners were aggregating there, my suspician is that
it was groundwater (cooler than the stream it entered?).
BTW, an excellent resource for understanding groundwater in Texas and its
relation to streams is Gunnar Brune's _Springs of Texas_, republished by
Texas A&M Press a few years back. Copies of the original are so scarce as
to be literally priceless, but the reprint can be had, and is available in
many libraries.
Hope this helps, and I am no expert on stream terminology. I usually just
use whatever terms make sense in context, trying to explain adequately so
that people understand.
Dave
David L. McNeely, Ph.D., Professor of Biology Langston University; P.O. Box
1500 Langston, OK 73050; email: dlmcneely-in-lunet.edu
telephone: (405) 466-6025; fax: 405) 466-3307 home page
http://www.lunet.edu/mcneely/index.htm
"Where are we going?" "I don't know, are we there yet?"
----- Original Message -----
From: Dan Johnson <danjohns-in-io.com>
Date: Tuesday, July 11, 2006 9:26 pm
Subject: NANFA-L-- Habitat questions and more fish pictures
> Hi All,
>
> Yesterday I went fishing in the Trinity River just below Lake
> Livingston. I observed an interesting phenomena. I found Silverband
> Shiners (Notropis Shumardi) in abundance in the river-in-points where
> water was trickling down from the bank into the river. I didn't
> investigate the source of the water. It may be a spring or may be
> runoff from above. Is there a habitat term that describes this
> feature? Also on a related question, what term describes the habitat
> where two streams converge. Is this just called the "confluence of
> two streams?" What if one of them enters the other-in-a much higher
level
> and results in the water from one stream pouring into the other? Is
> there a good glossary around describes various aquatic habitat terms?
>
> Heres a link to a few pictures and a list of all fish found
yesterday:
>
> http://www.io.com/~danjohns/fish/trinity.html
>
> --Dan
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