Dismember is from the first wave of Swedish Death Metal, from around 1990 along with Entombed, Unleashed, Grave etc. Created mostly in the Sunlight studios, Stockholm!
They do incorporate quite some melody in their songs though, but I would definitely not define them as "Gothenburg" style, as they're simply not part of that scene. Still they are quite good, personally I totally dig the "Indecent & Obscene" album.