trolling

In fishing:

The method of dragging or trailing a fishing-line and hook behind a boat, at or near the surface of the water; trawling.

In Great Britain, a mode of fishing for pike with a rod and line, and with a dead bait, used chiefly when the water is full of weeds, rushes, etc.

Present participle of troll.

angling by drawing a baited line through the water