[n] a conical fishnet dragged through the water at great depths
trawl, trawl net
abduction, apprehension, arrest, arrestation, bait, birdlime, bola, capture, catch, catching, cobweb, collaring, coup, domiciliary visit, exploration, fishhook, fly, forage, forcible seizure, frisk, gill net, grab, grabbing, ground bait, hold, hook, house