Seaspan Shipyards has launched the Canadian Coast Guard’s flagship science vessel the CCGS Naalak Nappaaluk, its fourth vessel built under the country’s National Shipbuilding Strategy, the North Vancouver, British Columbia, shipmaker said Aug. 19. The 88-meter-long (289-foot) Offshore Oceanographic Science Vessel is a floating laboratory that’s expected to further the study of ocean currents and seabed in Atlantic Canada. The vessel, which is set to be based in Dartmouth, Nova Scotia, is a Polar Class 6 vessel with advanced ice capabilities. It can carry as many as 34 crew members and 26 scientists, and is capable of conducting search and…