Haddock are MUCH cleaner than cod that way. Even so, I hold all my groundfish fillets up to a fluorescent light so it's easy to find and pop them out before cooking or freezing. I've found a few in haddock before, but no where near the number that you'll typically find in cod. The adult worm lives in the gut of seals. The worms produce eggs, which the seal expells, the eggs hatch into larval worms that are eaten by various bottom dwelling critters, the cod eats the critters, the seal eats the cod, and the nastly cycle begins anew. |