Wow..... Do those smelt look good.
In 1975 we had a shop teacher that took a bunch of us to his camp one weekend to go smelt fishing. He told us the only way we could go was if we bought a fish net (fine mesh) and a brand new metal trash can....... We filled those trash cans in what seemed like a few minutes but was really 4 or 5 hours, still not bad for the amount of fish we cought.
And my Favorite way to make tem is just what you have there..... Fried.
Except when they were alive, we would just through them in the hot pan of oil, they turn themselves over.