bering sea | Ocean Doctor

The Heart of the Bering Sea Beats with Discovery

April 28, 2008/in Bering Sea Expedition, Conservation, Featured, Ocean Doctor's Reflections/by Ocean Doctor

Kenneth Lowyck in DeepWorker

It’s hard to get a big smile out of Ken Lowyck, Greenpeace’s capable Action Unit Coordinator (and sub pilot) based in Toronto. I snapped the photo to the right and captured Ken’s pre-dive excitement last summer on August 1, just minutes before he was launched on the dive to 700 feet in Pribilof Canyon in the Bering Sea that resulted in one of the expedition’s most important discoveries. I imagine the modest smile that appeared on his face has returned today as Greenpeace has announced that the tiny, unassuming white sponge he retrieved on that dive was never before documented by Homo sapiens, and may well herald future announcements of other new species from the expedition. Read more

You're Invited! See Never-Before-Seen Video from the Bering Sea Expedition

April 3, 2008/in Bering Sea Expedition, Events/by Ocean Doctor_

See new Bering Sea footage while cruising on the Potomac River in Washington, DC

To celebrate the Marine Fish Conservation Network’s 15th anniversary, Dr. David Guggenheim will be the featured speaker aboard a cruise along the Potomac River in Washington, DC on May 7, 2008. As the first human being to pilot a submarine into the Bering Sea’s two largest canyons he will show rare footage from Greenpeace’s recent scientific expedition to these extraordinarily beautiful and mysterious ocean depths. Read more

Blogus interruptus

December 29, 2007/in Conservation, Cuba, Cuba Research & Conservation, Featured, Flotsam, Ocean Doctor's Reflections/by Ocean Doctor

Guanahacabibes, Cuba Read any authority’s advice about blogs and you’ll see at the top of the list: “Blog regularly.” Even for someone who enjoys writing as much as I do, I don’t believe in writing for writing’s sake — I like to share original experiences and ideas, not just rehash stale news. Still, I’ve experienced quite a few blog-worthy adventures in the four months since my last post shortly after the Bering Sea Expedition, but haven’t written a single word. Read more

Bering Sea Expedition Continues on Dry Land

September 8, 2007/in Bering Sea Expedition/by Ocean Doctor

The brilliant pink coral, Swiftia pacifica, found at 1,300 feet in Pribilof Canyon, Bering Sea, Alaska (Photo by David E. Guggenheim)

BERING SEA, Alaska — This past summer, the Greenpeace ship M/V Esperanza carried two manned submersibles, a remotely-operated vehicle (ROV) and an international research team to the Bering Sea for a three week survey of Zhemchug and Pribilof Canyons,to map and document deepwater corals living at depths of more than 1,000 feet. The expedition was conceived of and was led by Greenpeace. 1planet1ocean president David E. Guggenheim participated as a sub pilot and scientific consultant. Pribilof and Zhemchug Canyons revealed diverse and complex ecosystems, rich with corals, sponges, fish and other marine life. They also revealed striking human impacts from trawlers, damage that was documented during the expedition. More than a terabyte of video data and numerous biological specimens are now being analyzed and results are being shared with a range of decisionmakers and decisionmaking bodies, including the North Pacific Fisheries Management Council.

Expedition to the Bering Sea Concludes Successfully with New Insights, New Questions

August 17, 2007/in Bering Sea Expedition, Featured, News & Announcements/by Ocean Doctor

A bald eagle sits atop Unalaska’s Russian Orthodox Church of the Holy Ascension with Esperanza at anchor in background.
(Photo by David E. Guggenheim)

With a Terabyte (1,000 Gigabytes) of high-definition video, photographs and other data, along with numerous biological samples, now making their way around the world to scientists, policymakers and public forums, new insights and perspectives are emerging as the hard work of reviewing this vast volume of new data moves forward. The science team and sub pilots have departed Esperanza, which is continuing west along the Aleutian Island chain, continuing important outreach to local communities. The ship will eventually continue west to Japan.

Before departing Dutch Harbor, the science team/sub pilots made the first public presentation of its findings, including imagery and videos, to the community of Unalaska. The following day, members of the community were invited aboard Esperanza during an Open House to meet with the crew and see the ship up close.

Greenpeace Ocean Specialist, John Hocevar (left) and Greenpeace Oceans Campaigner, George Pletnikov (right) lead community outreach event in Unalaska, Alaska. (Photo by David E. Guggenheim)

Though the at-sea portion of the expedition has concluded, much work lies ahead in the analysis and review of the information collected. In addition, planning is underway for events to bring the new imagery and insights to the public, so stay tuned. Also, the team continues to review chart data regarding the pinnacles reported to be in the Zhemchug Canyon area which purportedly rise within 20 feet of the surface. Such features would certainly be biologically important, so the search will continue.

Pribilof and Zhemchug Canyons revealed diverse and complex ecosystems, rich with corals, sponges, fish and other marine life. They also revealed striking human impacts from trawlers, damage that was documented during the expedition. For a reflection on the conclusion of the expedition, read David Guggenheim’s latest OceanDoctor blog post entitled, “A Sea Turtle is Born in Alaska.”

The Esperanza carried two manned submersibles, a remotely-operated vehicle (ROV) and an international research team to the Bering Sea for a three week survey of Zhemchug and Pribilof Canyons,to map and document deepwater corals living at depths of more than 1,000 feet. The expedition was conceived of and was led by Greenpeace. Read more

Esperanza Heads South to Dutch Harbor with New Insights

August 10, 2007/in Bering Sea Expedition/by Ocean Doctor

Location of Pinnacles Remains a Mystery

A Dall’s porpoise (top) gives Michelle Ridgway in DeepWorker a sendoff before her dive to 1,700 feet at Zhemchug Canyon in this surreal looking image. Hundreds of Dall’s porpoises were present around the ship during the expedition. (Video still by David E. Guggenheim)

The Esperanza began its 2-day steam south and endured gale-force winds and 15-foot seas along the way, but all are well and grateful for the successes along the way. The team achieved a total of 25 sub dives during the expedition, well-exceeding expectations for this part of the world where weather is typically unforgiving.

The team collected nearly a Terabyte (1,000 Gigabytes) of high-definition video, photographs and other data, now being archived, cataloged and distributed. Also collected were numerous coral, sponge, and other invertebrate samples which are being prepared for distribution to scientists around the world for further analysis. Read more

Deep Dives at Zhemchug Canyon Reveal Corals, Intricately Woven Ecosystem

August 4, 2007/in Bering Sea Expedition, Featured, Projects & Expeditions/by Ocean Doctor_

Before rough seas rolled in on Tuesday, the team aboard Esperanza was able to complete six manned submersible dives and three ROV dives at Zhemchug Canyon, considered the largest canyon in the ocean. The subs worked close to their maximum depth of 2,000 feet while the ROV worked at its deepest depth ever, around 3,000 feet. Numerous coral species were present and documented throughout the dives.

Zhemchug Canyon has also revealed an intricate ecosystem whose inhabitants depend upon small holes or rises in the otherwise flat, silty bottom, including “flatfish holes,” depressions made by halibut, flounder, sole and skates, and drop-stones, rocks and boulders that fall from melting icebergs above. Read more about this unique place on David Guggenheim’s OceanDoctor blog. Read more

Esperanza Now at Zhemchug Canyon, Largest Underwater Canyon in the World

August 3, 2007/in Bering Sea Expedition, Ocean Doctor's Reflections/by Ocean Doctor

The Esperanza crew had an opportunity for a brief shore leave on St. Paul Island on Friday (August 3) before steaming north to Zhemchug Canyon. On St. Paul, they visited a fur seal rookery. Populations of fur seals are down dramatically.
(Photo by David E. Guggenheim)

Continued favorable weather and few mechanical problems means that the team aboard Esperanza has been able to complete 14 manned submersible dives at Pribilof Canyon. On Saturday (August 4), Esperanza arrived at Zhemchug Canyon to explore this, the largest undersea canyon in the world, much larger than the Grand Canyon. Within the first few minutes of the deepest ROV dive yet, more than 3,000 feet down, the team discovered corals, including pink “bubblegum” corals along with other soft corals.

Earlier, during the final dives at Pribilof Canyon, the team documented numerous corals, but also evidence of extensive trawling damage in the area.

The Esperanza is carrying two manned submersibles, a remotely-operated vehicle (ROV) and an international research team to the Bering Sea for a three week survey of Zhemchug and Pribilof Canyons,to map and document deepwater corals living at depths of more than 1,000 feet. The expedition was conceived of and is being led by Greenpeace.

Choose Nausea or Sleepiness. Or Perhaps You’d Like Both?

August 1, 2007/in Bering Sea Expedition, Conservation, Featured, Ocean Doctor's Reflections/by Ocean Doctor

The Bering Sea, with Attitude

Earlier in this blog I’ve confessed my darkest secret as a marine scientist: I get seasick. So my biggest fear of the Bering Sea is what the Bering Sea is fond of doing often — getting rough with the boats that dare to ply its waters. Yesterday, things got a bit rough for the Esperanza. A major front pushed through and seas kicked up from nearly flat to a confused sea state — wind-driven waves 4-5 feet heading one direction, a much larger swell, Penny the boatswain noting swells up to 12 feet, heading at a 45 degree angle. The result made for a rough ride. Awakened at 4am, I dashed up to my hideout, the video editing room, to make sure that our precious data stored inside several hard drives, were secured. I added some bungee to keep things from sliding. I tried to return to sleep, but it was fitful. Read more

Exploration of Pribilof Canyon Now Under Way, Revealing Rich Ecosystem, Corals

July 30, 2007/in Bering Sea Expedition, Featured, Ocean Doctor's Reflections, Projects & Expeditions/by Ocean Doctor

Deepwater corals, like this sea whip (Halipteris willemoesi) photographed on Sunday by Timo Marshall, thrive in the deep waters of Pribilof Canyon

Thanks to great weather, state-of-the-art equipment and a top-notch crew, it has been a productive weekend for the team aboard Esperanza which arrived on site at Pribilof Canyon Saturday morning (July 28) when David Guggenheim and Michelle Ridgway made the first tandem dive in two DeepWorker submarines into Pribilof canyon to a depth of just over 1,000 feet and began to document a fascinating diversity of life, including a variety of corals, anenomes, sponges and fish. On Sunday, the ship visited a second site in Pribilof Canyon where John Hocevar and Timo Marshall completed a successful tandem dive, documenting more corals and successfully collecting a number of specimens with DeepWorker’s manipulator arm for analysis by scientists around the world.

John Hocevar (Greenpeace Senior Oceans Specialist) pilots DeepWorker at 1,100 feet in Pribilof Canyon
(Video still by Timo Marshall – 29 July 2007)

Already, the Greenpeace-led team has accumulated nearly 16 hours of bottom time (8 hours per sub), more than all of the previous research done in this region combined. The subs’ high-definition video cameras have already collected over 120 Gb of data. The subs are performing linear transects which will then be analyzed on the video. Twin lasers spaced 20 cm apart allow accurate analysis of the size of organisms encountered. Read more

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