
1) Fishing boats 2) Fishing smacks 3) Fishing vessels 4) Shrimp boats
Found on
https://www.crosswordclues.com/clue/trawlers

fishing boats that catch fish by trawling nets. Trawling is a very efficient method of fishing but it is indiscriminative and fish are crushed in the net, resulting in low and short-lasting quality. Traditionally, nets are trawled directly over the sea bottom to catch bottom (benthic) species but modern trawlers can catch fish in mid water by using...
Found on
http://www.seafriends.org.nz/books/glossary.htm
No exact match found.