 "Oregon II" has undergone an upgrade in which she received new electronic fish detection equipment, environmental sensors, and deck-handling and electronics equipment.Her laboratory and living spaces were refurbished, her original Fairbanks Morse main engines were replaced by new, more powerful Caterpillar engines, and a bow thruster was added to improve both her station-keeping and shiphandling capability.Operated by NOAAs Office of Marine and Aviation Operations, "Oregon II" conducts fishery and living marine resource studies in support of the research of the National Marine Fisheries Service (NMFS) Pascagoula Laboratory in Pascagoula.