"The bubbles [of oil] come from an area the size of a dinner plate," says Australian maritime archaeologist Bill Jeffery, who led the Earthwatch team.Earthwatch also identified a smaller oil slick coming from a nearby Japanese submarine tender, the Rio de Janeiro Maru.This image is the cover of a videotape, DVD, Blu-ray, etc.and the copyright for it is most likely owned by either the publisher of the video or the studio which produced the video in question.For each, she says, "We need to know how much oil, the depth, what the complications [of cleanup] might be.An intelligent evaluation would be mandatory." Earle, a National Geographic explorer-in-residence, suggests starting with the Hoyo Maru: "If it's a tanker," she says, "that's a priority." But overall Earle advocates a cautious approach.
"This is not unusual as it is known the tanker can exhibit leaking one day and not the next." Overall, the small island nations of the South Pacific lack the funds and technological expertise to perform large-scale cleanups.The divers used an advanced technique called hot tapping—in which submersible hoses are attached to oil or fuel tanks and the liquid is pumped to a barge on the water's surface—to offload most of the ship's remaining oil.