The Dalniy Vostok freezer trawler had 132 people on board when it sank.
Water temperature is around zero degrees Celsius. I'm pretty sceptic whether all crew members have their own survival suit.In addition it was reported that trawler sunk in about 15 minutes,- you realize, the chances of survival in near-freezing waters after more than 20 minutes is nearly impossible
The reason of why the trawler sank unclear yet.
http://www.bbc.com/news/world-europe-32157040