There's certainly still (ship to ship?) voice traffic in the old 2MHz marine/amateur band, as down here in Norfolk I often hear very strong SSB signals in non-English languages and other stations with heavily-accented Scots. I would guess they are mostly fishing vessels as there is often a loud engine or other machinery sound in the background.
On a similar topic, does anyone know if SITOR is still in use on the HF marine bands? I have been playing with a old PK232MBX modem which does NAVTEX well but as the amateur AMTOR mode is very rarely heard these days SITOR might work if I knew where to listen.