Years ago, my wife and I were anchored in Port Blakely when there was an accidental Atlantic salmon release. They swarmed into the headwaters of the bay and, because they are pen raised, couldn't figure out how to get back out for some reason. Fisheries put out a notice of a 2 or 3 fish limit and people started showing up. Best "lure" was something that looked like a deer turd, because that's what they are used to eating (the shape, not actually turds).
I caught a couple and ate part of one. The rest was crab bait. I don't know if they were triploid at that time, but whatever the reason, they were to Chinook salmon what Tang is to fresh orange juice.
I put some triploid oysters out on my beach a few years ago. The supposed benefit was that triploid oysters don't go through the regular "post breeding" cycle where the oyster is thin and watery because of all the energy spent in the summer orgy. Okay. Trouble is, they never got really fat in preparation for breeding. They were just always kind of thin and watery. My experience was that triploid solves a problem at the expense of edibility.
Mark