The mackerel is one of the most voracious of all fishes; and when they
get among a shoal of herrings, they make such havoc as frequently to
drive it off the coast. Pontoppidan informs us that a sailor, belonging
to a ship lying in a harbor of Norway, went into the water to wash
himself, when he was suddenly missed by his companions. In the course
of a few minutes, however, he was seen on the surface with vast numbers
of mackerels fastened to him. The people went to his assistance in a
boat, and tore the fishes from him; but it was too late; for he very
shortly afterwards expired from the effects of the wounds he had
received, and from the loss of blood.