Off the top of my head I'm thinking gorge waterway initiative, which is a collaboration of working groups, or world fisheries trust. My girl is involved in both so I will ask her to find out and report back with info/contact if you wish to volunteer......good for you! We all need to be involved in strategies like this. I got to sight all the dams and water flow issues on the creek I volunteer at from
@Stosh last weekend, was awesome.