Interesting that is truth they do feed on small crabs....the megalop stage especially.  Again the point is: the addition of hundreds of millions of introduced predator mouths released and the millions of adults that return into a delicate shellfish nursery must be acknowledged as an added effect.  Denial won't work any more. Especially now when the water temperatures are high.   Impacts from hatcheries of this magnitude on the wild fish at all stages creates imbalance and we need to put the effects of factory hatcheries on the table instead of blindly manufacturing additional fish just to hold up a faltering business plan as if this has no affect to the ecosystem. Thank-you panHandler