head-and-gut fleet
n.— «The Alaska Ranger’s sinking claimed four lives and left a fifth crew member missing. It was the latest in a series of accidents among the head-and-gut fleet, which uses longlines and trawl nets to catch sole and other fish that are then frozen onboard.» —“Head-and-gut fleet under scrutiny” by Hal Bernton Seattle Times (Washington) Mar. 25, 2008. (source: Double-Tongued Dictionary)