trawling

A method of fishing that involves pulling a fishing net through the water behind one or more boats.

Citation: 
https://en.wikipedia.org/wiki/Trawling
English

trawling [cite]

Top: NOAA Fisheries Service Bottom Left: Captain Robert A. Pawlowski, NOAA Corps (Fisheries Collection, Image ID: fish0012) [Public domain] Bottom Right: Food and Agriculture Organization of the United Nations.