sea ice types include frazil, grease ice, slush, and shuga. These new ice classes refer to both marine water and fresh water ice. If using this term for annotation, use it in conjunction with another envo term to express whether the ice is in a marine, freshwater, or other system.

new ice

Water ice which is formed from freezing water and is suspended in a water body.

Currently the new ice classes are not specific to sea water as they may form in non marine systems, but it would be good to confirm this especially for frazil ice.