The unintended victims of DDT were mainly predators at the top of food chains, ( eagles, hawks, falcons) because the first ingesters, ( mice, sparrows, voles etc.) of afflicted insects concentrated the poisons in their livers,- predators then got a double concentrated dose off their prey. Now, the same effect has been seen in farmed fish, like salmon. The tiny amounts of dioxins present in fish wastes ( livers, skin, heads, guts) are concentrated in the processing of pellets, so the farmed salmon got 1000 times the wild fishes normal levels. Then we concentate it again! I believe the FDA (?)issued a warning about the amounts of farmed salmon it was safe to eat? 'x' portions a week?
Alan