The CATALYST AUV engineers take a look at Ginger's thruster. Photo Credit: Stephani Gordon

HBOI's Phil Santos keeps an eye on Mary Ann while she surveys deep below. Photo Credit: Liz Smith

AUV Engineer Greg Packard works on a technical issue. Photo Credit: Liz Smith

AUV operator Sam Guse takes notes on Ginger's latest position at depth. Photo Credit: Liz Smith

AUV engineer, Greg Packard, and sonar analyst, Andy Sherrell, go over recent sonar data from the seafloor. Photo Credit: Liz Smith

WHOI AUV operator runs the LARS as Mary Ann comes back on board. Photo Credit: Liz Smith

Woods Hole AUV engineer, Brennan Phillips. Photo Credit: Liz Smith

HBOI's Frank Lombardo removes Mary Ann's cover to begin replacing her batteries for her next run. Photo Credit: Liz Smith

Woods Hole AUV engineer, Greg Packard, checks out Mary Ann's thruster housing. Photo Credit: Liz Smith

The WHOI AUV team takes a closer look at Mary Ann's thruster housing. Photo Credit: Ian Kellett

The Woods Hole AUV group with one of the AUVs in their shop. Photo Credit: Woods Hole Oceanographic Institution

WHOI AUV techs with the Waitt Institute's new REMUS 6000. Photo Credit: Woods Hole Oceanographic Institution

The WHOI AUV Team. Photo Credit: Woods Hole Oceanographic Institution

WHOI's Steve Murphy and HBOI's Craig Caddigan watch carefully as Mary Ann is winched out on deck for launch. Photo Credit: Stephani Gordon

WHOI AUV engineer Brennan Phillips holds a Deep Ocean Transponder (DOT) on his shouder. Photo Credit: Liz Smith

Lee Frey, HBOI project manager, monitors the AUVs as they survey deep below. Photo Credit: Brian Cousin

HBOI's Sully and Don check the vehicle before preparing it for launch. Photo Credit: Brian Cousin

Our partners' logos on the AUV vans. Photo Credit: Brian Cousin

University of Queensland researchers Dave Wheeldon and Alan Goldizen monitor the trawl net from the lab while it is at depth. Photo Credit: Liz Smith

WHOI's Mark Dennett assists researcher Alan Goldizen as he oversees the final deployment of the trawl net. Photo Credit: Liz Smith