Patrick:

You might contact Bob Hughes of Corvallis, OR.  He has developed an
Index of Fish Assemblage Integrity for the Willamette that may work as a
starting point for other large northwest rivers such as the Yakima.

Contact Bob at:

Dynamac Corp.
200 SW 35th St.
Corvallis, OR  97333
(541)754-4600

Good luck.

Greg Volkhardt
Wash Dept Fish & Wildlife
(360)902-2779
(360)902-2158 fax
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>>> Patrick Monk <[log in to unmask]> 01/20/98 05:53am >>>
I am interested in an index of biotic integrity using fish-based metrics as a
measure of the ecological health of streams.  Is anyone aware of one
that has been developed for North American streams in the Pacific
Northwest?  Thanks!