I found them to be pretty large sturgeons, besides salmon, large trout, and many other fishes.

Jack immediately ran for his bow and arrows, and told me he would kill them all.

He fastened the end of a ball of string to an arrow, with a hook at the end of it; he tied the bladders of the dog-fish at certain distances to the string; he then placed the ball safe on the shore, took his bow, fixed the arrow in it, and aiming at the largest salmon, shot it in the side; the fish tried to escape; I assisted him to draw the cord; it was no easy task, for he struggled tremendously; but at length, weakened by loss of blood, we drew him to land, and despatched him.
The other boys came running up to congratulate the young fisherman on his invention, and as it was to be feared that the rest, alarmed by this attack, might take their departure, we determined to abandon everything for the fishery.

Fritz threw his harpoon, and landed, by means of the reel, some large salmon; Ernest took his rod, and caught trout; and I, armed like Neptune with an iron trident, succeeded in striking, amongst the stones, some enormous fish.

The greatest difficulty was to land our booty; Fritz had struck a sturgeon at least eight feet long, which resisted our united efforts, till my wife brought the buffalo, which we harnessed to the line, and made ourselves masters of this immense prize.
We had a great deal of labour in opening and cleaning all our fish: some we dried and salted; some my wife boiled in oil, as they preserve the tunny.