--Bruce Stallsmith
Huntsville, AL
>>I have also seen and heard the blackbanded darter described this way
>>(i.e.,
>>as turbidity tolerant) but am not convinced.
>>
>>In 1995-1996, we studied fish-habitat relationships in small streams near
>>Augusta, Georgia. Abundance of blackbanded darter there was negatively
>>correlated with turbidity - the clearer the water, the more blackbanded
>>darters.
>
>I wonder if people making the association between turbibity/pollution and
>blackbanded darter numbers aren't actually making the connection between
>slower deeper water and the tendency of such water to appear more
>turbid. In 1990, I collected data on fish-habitat relationships in a
>stream in South Carolina. There were two darter species in the stream,
>blackbanded darters and turquoise darters, Etheostoma inscriptum. I was
>looking at the turquoise darters, so I didn't work up the data on the
>blackbanded darters. I found blackbanded darters in the lower reaches,
>where the water was a bit more sluggish and deeper.
>
>--
>Jay DeLong
>Olympia, WA
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