A recent study found that even a short period of fishing can select for slower growing and more timid fish. This happens because the biggest, boldest fish are more active as they try to find more food to fuel faster growth rates. All that's left behind for breeding are the smaller, more timid fish...the weaklings and wimps of the fish world.
According to scientist Paul Biro, this may
"slow the rate of recovery for fished populations, and could explain why fisheries tend not to rebound in the manner we expect after we reduce harvest or close a fishery."In other words, fishing today can undermine the success of fishing tomorrow.
Scientists have long wondered why depleted fish populations often fail to recover. Could it be that survival of the wimpiest fish is part of the problem? Tweet