We catch them all the time when walleye fishing..... Both Spotted and longnose gar.
Last one I cought was a 26" longnose.... I suppose I should start saving them and selling them to the LFS if they are 50 bucks a piece. They are considered a rough fish here.... open season all long, can spear, net or whatever to get them...
I once kept a baby Northern Pike in a 75 gallon tank, but he went back to the river when he got to be about a foot or so. You'll notice this though... he wont move a ton... seems all of the long skinny predator fish are still hunters. They wait perfectly still until the food gets right in front of them, then they lunge hard and fast at it. It is what theyre long skinny bodys and large tails are built for.
Great fish!