Looking for some information on some different waters to fish during the
Clave, I came upon the following link:

http://visitmt.com/falcon/Fishing_Ma...iver_final.htm

Montana Fish and Game did a study comparing a C&R section of the Madison
to one that was closed for fishing. Although the section with C&R did
have a higher population of fish than it had before C&R was instituted,
the population was 20% lower than in the section that was closed to
fishing. I don't have a URL for the original study.

Willi