Not a sailor myself so I can't be sure but I think the answer is yes there is but it's not in the aeronautical VHF band. My understanding is that marine VHF uses channel numbers rather than frequencies and these are in a different part of the VHF band. Having said that, I know that some big boats (I think they call them ships) carry aeronautical radios for specific purposes.
I've just found this on
a useful site.
Emergency Communications Frequencies
The unit in distress, or a station that has been assigned controlling responsibility by the unit in distress, controls distress traffic. However, for cases involving international civil aviation, the station addressed by the distress message controls distress traffic. Once communications are
established with a distressed unit, they should be maintained on the same frequency. The following frequencies have been assigned as distress or emergency frequencies:
500kHz -- International CW/MCW distress & calling (Not guarded by USN ships). **Phasing out**
2182kHz -- International voice distress/safety/calling.
4125kHz -- International voice distress/safety/calling backup (not guarded).
6215.5kHz- International voice distress/safety/calling backup (not guarded).
8364kHz -- International CW/MCW lifeboat/survival craft & SAR forces.
27.065mHz -- Citizens' Band Radio emergency freq. CB Ch# 9.
121.5mHz -- International VHF voice aeronautical emergency & ELT/EPIRBs.
156.8mHz -- VHF-FM International voice distress/safety & calling. EPIRB alert tones. Marine channel 16.
156.75mHz-- Class C (marine) EPIRB 15 second homing signal.
243.0mHz -- Joint/Combined military UHF voice aeronautical emergency, international survival craft & ELTs.
So it looks like the freq you were after is 156.8.