PRINCETON, N.J. — When I was a child, my father used to take me for walks, often along a river or by the sea. We would pass people fishing, perhaps reeling in their lines with struggling fish hooked at the end of them. Once I saw a man take a small fish out of a bucket and impale it, still wriggling, on an empty hook to use as bait.

Another time, when our path took us by a tranquil stream, I saw a man sitting and watching his line, seemingly at peace with the world, while next to him, fish he had already caught were flapping helplessly and gasping in the air. My father told me that he could not understand how anyone could enjoy an afternoon spent taking fish out of the water and letting them die slowly.

These childhood memories flooded back when I read "Worse Things Happen at Sea: the Welfare of Wild-Caught Fish," a breakthrough report released last month on fishcount.org.uk. In most of the world, it is accepted that if animals are to be killed for food, they should be killed without suffering. Regulations for slaughter generally require that animals be rendered instantly unconscious before they are killed, or death should be brought about instantaneously, or, in the case of ritual slaughter, as close to instantaneously as the religious doctrine allows.