UNID marine net 4111 kHz USB 4.111 MHz USB. Yes, they are actually in the 4 MHz maritime mobile band.
Heard "barco" (boat, ship) several times. This sounds like Italian to me. Still pretty noisy...at 2129 UTC heard several rapid beeps. Sounds like two stations chatting away, more mentions of "il barco", sounds a little like Spanish too....now I'm second guessing myself. The more I listen the more I think its actually Spanish, but the accent sounds Italian if that makes any sense. I'm picking out a lot of words, all of which are related to fishing and boats. Still going at 2130 UTC, the second station is just at the noise floor.
Listening via the Westminster, MD KiwiSDR.