Good post -
I used to be a chain dragger on the Yakima in high h20, and have stopped. You can look at it a few different ways, none of them good.
One - you may not necessarily be dragging in tailouts and flats, typical spawning bed areas, but what about the insect life? The nymphs, scuds, leeches, and such that live in the surface rock and gravel along the bottom depend on that structure to live in and hide from the big fish that will so gladly eat them if washed downriver. So you are feeding the fish, well how long do you think that will last before the ecosystem cant replentish the insect life and you have starving trout? Again, maybe starving trout is not a perfect analogy on some of our anadromous rivers, but what would you like the smolts to feed on? - Chain shrapnel?
Also - you take a good risk of stopping a bullet if you play the dragging game in Montana, and its flat out against the law in Wyoming to even set your anchor in the streambed. Think maybe those states have seen the results of dragging anchors? Maybe we should learn from them, and while we are learning from others mistakes, - they practice almost all catch and release as well......
And finally - if you have to drag your anchor because you cant row your boat in the current, tighten up your skirt and learn to row.
_________________________
Rooster
If I was tall, I'd probably be stupid.