They can scoop up 6,200 tonnes of fish in one expedition, then freeze their catch on board and start again.
Such is the scale of super trawlers, or freezer factories, that for two years have been banned from entering Australian waters.
But that could change now the ban has been lifted and companies look at importing ships to Australia to catch their assigned quotas… http://www.sbs.com.au/news/article/2014/11/26/super-trawlers-could-be-back-australian-waters-soon