Serendipity

With the gradual disappearance of wild salmon, one continues to look for alternatives. Producers of farmed salmon vie with each other to demonstrate their ecological credentials, protesting that they do no long-term damage to ocean floors, that low-density stocking rates lead to happy fish, and that the supposed cross-breeding with wild stocks – thus destroying the genetic orientation skills of the fish that leads it back to the river of its birth – is a myth. Harder to disprove, of course, is the worrying amount of plankton and small fish that is required to bring such fish to maturity, but it stands to reason that this must be the case in the wild as much as with farmed fish.