drilling induced acoustic pressure waves or production induced acoustic pressure waves such as might result from water or gas injection in embodiments where seismic sources are deployed with the water vehicles 10 the seismic source may be a conventional air gun marine vibrator or non traditional environmentally friendly source marine vibrators and non conventional environmentally friendly sources are characterized in that they have a lower amplitude than conventional airguns the seismic sensors towed by or otherwise coupled to the water vehicles 10 are better suited for recording lower amplitudes due to the low water relative speeds of the water vehicles that avoid the water flow induced pressure waves that impact the hydrophones of conventional towed array systems further the water vehicles 10 are better suited for recording the lower amplitude drilling and production induced noise produced in the vicinity of the reservoir 100 the combination of the relatively quiet towing platform of the water vehicles 10 and seismic signal emission without the need for a source towing vessel is a significant efficiency gain for reservoir monitoring such seismic monitoring could be performed continuously during the life of the reservoir to calibrate reservoir models and generally give information that will increase production in some embodiments the water vehicle 10 may be used to monitor the presence of marine mammals in an area where seismic source signals are being generated the hydrophones 12 towed by the water vehicles 10.