Global ag giants -- the ones that probably make your sausage, your sandwich meat, your chocolate, and yes, your shoes -- are having what is best described as a FOMO moment in seafood.

Running out of options in their traditional markets and accepting that terrestrial proteins won't be the future, they're realizing that a sector they long shrugged off is one they should have bet on years ago.

The meat, poultry and pork sector -- already one of the most consolidated food segments in the world -- continues to concentrate, but there are some very real signs that the largest players are nearing the bottom of their gigantic M&A trough.