a commercial fishing boat that uses miles and miles of fishing lines and hooks to catch fish; can entangle wildlife not intended to be caught
As seen in the movie, The Perfect Storm, longliners are commercial fishing boats with a huge spool of heavy monofilament line on their back deck, up to 40 miles long. Used mostly for targeting Tuna and Swordfish.
a commercial fishing vessel that uses a long line with a large number of hooks attached to it.