Thanks Sam and Thorn for the suggestions.
Thorn, I know pickerel are solitary, and was leery about using the seine to begin with--in my old lab I did all of my collections by hook and line (and probably with greater success/less bycatch). In this instance, it probably makes more sense for me to push for my advisor to add hook and line to the collection permit. It's a fairly broad permit as it is, so that really shouldn't be an issue. (Also, good to hear that other folks are up on their habitat conservation precautions.)
I'll probably end up pursuing this one aspect of my work into the winter, so ice fishing is a good option... However, I'm an invited speaker at the World Congress of Biomechanics in July, and thought even preliminary work in this direction would add to my talk.
So even a few high speed videos would be plenty. I'll look into the iceshanty videos--but I'm concerned about frame rate. It looks like the systems you suggested are standard frame rate (otherwise I think they'd cost ~10 - 20x more.) For anything I do, I need a minimum of 500 fps, with 1 Mpx resolution. That being said-- those systems would be perfect for some work I have planned in a year or two on daily energy budgets
If anyone out there has one a MarCum or Aqua Vu set up, and wouldn't mind taking a guest out--I'd love to see what they're capable of.
Might also be worth talking to the MarCum and Aqua Vu people themselves... I'm sure if we teamed up we could convince my advisor to lend me/us one of our cameras and get some REALLY cool slow motion videos.