By Ryan Dolan
In August, I embarked on a journey that very few people will ever experience. Leaving the U.S. and a sultry summer behind, I traveled south almost as far as you can go, to the bottom of the world.
At the southern tip of Chile, I boarded the Nathaniel B. Palmer, a U.S. National Science Foundation vessel, to join a group of experts on a month-long research voyage to the Antarctic Peninsula. I was traveling to the region two months before a multinational marine conservation management body was set to consider a proposal to create the world's largest marine protected area, in the Ross Sea off Antarctica. I wanted, among other things, to see this extraordinary environment firsthand.
Crabeater seal resting on an ice floe in Bransfield Strait, Antarctica.Ryan Dolan
Even among the Antarctic scientific community, my trip was considered extreme. Most researchers—and all tourists—visit the region during the summer. It's hard to blame them: The Antarctic winter is hostile to humans, intensely cold, dark and stormy. But I was nonetheless eager to go.
The purpose of our expedition, led by the Antarctic Marine Living Resources program at the U.S. National Oceanic and Atmospheric Administration, was to gather winter data to better understand how various factors, such as the changing climate and behavior of krill populations, are affecting this raw and foreboding ecosystem.
The Nathaniel B. Palmer sailing through pancake ice in the Bransfield Strait.Ryan Dolan
Antarctic krill, a tiny shrimplike crustacean, was our main focus. With their populations in decline, krill underpin the entire Antarctic and Southern Ocean food web and are the main source of nutrition for many species of penguins, seals and whales. It's remarkable that a minute creature plays such a critical a role in this massive, raw environment. As the Palmer advances into the Bransfield Strait, off the western coast of the Antarctic Peninsula, I see towering, rugged, snow-covered peaks rising from jagged blue glaciers. Antarctic snow petrels, one of only three bird species that breed exclusively in Antarctica, fill the skies above the iceberg-speckled sea, while fur seals bob playfully through the waves.
The strait is crucial habitat for Antarctic krill, which thrive under winter sea ice conditions. For hardy species such as crabeater seals and Adélie penguins that overwinter here, the ice forms a network of floating platforms, providing the animals a safe place to rest near their preferred and primary food source: krill.
But this remote, pristine environment is not immune to outside forces. The peninsula region is experiencing warming trends far above the global average, comparable only to some areas in the Arctic and the changing climate is compromising sea-ice coverage, with potentially widespread impacts. On average, the peninsula region's monthly ice concentrations have decreased by up to 25 percent since the late 1970s. With this diminished seasonal sea ice, experts think penguins and seals are going elsewhere to forage, to waters with potentially fewer krill to eat.
The peninsula region also supports the world's largest commercial krill fishery, which is especially concentrated in coastal areas, making it harder for penguins and other predators to find food. Krill are used to make omega-3 supplements and feed for livestock and farmed fish, such as salmon.
World's Biggest Sockeye Run Shut Down as Wild Pacific #Salmon Fight for Survival https://t.co/bbphbmkZQq #SalmonFishing @DavidSuzuki— EcoWatch (@EcoWatch)1474475513.0
More research is needed to understand how climate change and commercial fishing are affecting Antarctic krill populations and, ideally, to drive policies that might mitigate these impacts. To that end, my shipmates and I logged 12-hour shifts in often brutal conditions netting krill and other zooplankton for further research. We are hopeful that this work will help scientists better grasp the threats to Antarctica and the Southern Ocean to safeguard this region—one of the last pristine oceans left on Earth.
Research crew sailing near Elephant Island, Antarctica.Ryan Dolan
During the Our Ocean conference in Washington in September, hosted by U.S. Sec. of State John Kerry, some two dozen governments committed to ocean protections totaling nearly 4 million square kilometers. These commitments were the latest sign of a global movement to conserve more of the ocean; within weeks, that momentum swept to Antarctica.
On Oct. 28, the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), a body made up of 24 nations and the European Union that manages human activities in the Southern Ocean, made history by designating the world's largest marine protected area in the Ross Sea. The 1.55 million-square-kilometer (600,000-square-mile) area—nearly twice the size of Texas—sets aside a reserve where no commercial fishing is allowed. CCAMLR member governments also agreed to a five-year extension of a precautionary krill fishery management measure that sets fishing quotas in smaller areas, a key tactic to avoid over concentration of fishing in sensitive regions.
I've been back on dry land for several weeks and continue to feel grateful for the opportunity I had to contribute to scientific work at the bottom of the world. I am even more grateful to CCAMLR for the critical action it took last month in protecting an extraordinary and globally important ecosystem.
Ryan Dolan is an officer for Pew's penguin campaign.
EcoWatch Daily Newsletter
Citing the danger that climate change poses to the oceans, President Obama will establish the largest marine reserve in the world today, protecting nearly 600,000 square miles off the coast of Hawaii.
Commercial fishing, mining and extraction are prohibited in the expanded Papahānaumokuākea Marine National Monument, though subsistence fishing and scientific research will be allowed.
"The oceans are the untold story when it comes to climate change and we have to feel a sense of urgency when it comes to protecting the ocean that sustains us," said Sen. Brian Schatz of Hawaii. George W. Bush originally established the reserve a decade ago, protecting 140,000 square miles.
Reef Fish at Rapture Reef
Schools of reef fish at Rapture Reef, Papahānaumokuākea Marine National Monument.
Photo credit: James Watt / USFWS
Green Sea Turtles
More than 90 percent of the world's population of Green Sea Turtles, also known as honu in Hawaiian, nests at the French Frigate Shoals in the Northwestern Hawaiian Islands. To many Hawaiian people, the green sea turtle is ingrained in their identify and cultural heritage. Despite a decline in population in the 1960s, green sea turtles are making a comeback!
Photo credit: Kydd Pollock / USFWS. Caption courtesy of the National Wildlife Refuge Association.
Hawaiian Monk Seals
The adorable Hawaiian monk seal is actually one of the most endangered seals in the world. Only 1,100 seals remain on the planet and 90 percent of them live around the Northwestern Hawaiian Islands. Threats include entanglement, lack of food sources and climate change.
Photo credit: Andy Collins / NOAA. Caption courtesy of the National Wildlife Refuge Association.
Albatrosses are the largest flying birds on the planet, extremely efficient at flying, and spend over 80% of the time at sea unless they are breeding. During breeding season, males and females form a mating pair that lasts a lifetime. Wisdom, a Laysan Albatross, is the world's oldest known breeding bird in the wild and lives on Midway Atoll National Wildlife Refuge. Wisdom, at the young age of 65 years old, returns to Midway every year to Midway to lay her eggs on the largest nesting albatross colony in the world.
Photo credit: Greg Joder. Caption courtesy of the National Wildlife Refuge Association.
The endangered Laysan duck is endemic to Laysan Island and Midway Atoll National Wildlife Refuge. Unfortunately in 1993, there was an alarming decline in the population due to severe weather that introduced insects, which depleted food sources for these ducks. Historically, Laysan ducks were found widespread throughout the Hawaiian Islands. Thanks to the great work of the U.S. Fish and Wildlife Service and the U.S. Geological Survey, research and conservation management efforts such as translocations are on-going to increase the population of Laysan ducks throughout the Hawaiian islands.
Caption courtesy of the National Wildlife Refuge Association.
More than 24 species of marine mammals including whales, dolphins and porpoises have been identified in the Hawaiian Islands. Weighing in at 35-4 tons and 50 to 60 feet long, sperm whales are the most abundant. As the star of the famous novel, Moby Dick, sperm whales are the largest of the toothed whales and have the largest brain of any living animal. The expansion of Papahānaumokuākea Marine National Monument would increase and enhance protection of these species graceful animals.
Photo credit: Gerard Sovry. Caption courtesy of the National Wildlife Refuge Association.
Oceanic White-Tip Shark
Oceanic white-tip sharks are the kings of the open ocean. Their noticeably long pectoral fins give these sharks its proper Latin name longimanus meaning "long arms." These apex predators are migratory, following the warmer climates in the winter months to catch prey. The famous oceanographer, Jacque Cousteau, called oceanic white tips "the most dangerous sharks in the ocean" and they rely on the Hawaiian islands for food.
Photo credit: Joe Romeiro. Caption courtesy of the National Wildlife Refuge Association.
Big Eye Tuna
Big Eye Tuna, also known as ahi, is a highly desired commercial species caught in the Northwestern Hawaiian Islands. The population of big eye tuna has declined due to overharvesting. Expanding the monument will allow the eco-system to thrive, ensure that tuna reach sexual maturity and the protect tuna from overfishing.
Photo credit: ISSF 2012. Caption courtesy of the National Wildlife Refuge Association.
"President Obama's expansion of the Papahānaumokuākea Marine National makes it the largest sanctuary for ocean life in the world," Greenpeace oceans campaign director John Hocevar said.
"This is a bold decision that will have lasting benefits for Hawaii's unique ecosystem. Networks of sanctuaries have proven to be powerful tools to ensure the health of our oceans. Setting aside areas closed to fishing, drilling and other extractive uses is the best way to protect biodiversity, rebuild depleted fish populations, and increase the resilience of marine ecosystems so they can better withstand the impacts of climate change.
"Bolder steps are still needed. Less than two percent of the world's oceans are protected from fishing, and many scientists suggest a target of 40 percent. It is vital that we take steps like President Obama did in Hawaii to prevent future expansion of industrial fisheries, but we also need to look at areas closer to our population centers. Most of the world's coastal fisheries have been severely depleted. With few limitations on fishing in these areas, recovery is slow. Our coasts are dotted with former fishing communities that are no longer able to find enough fish to sustain their livelihoods.
"Setting aside 40 percent of our marine ecosystems—in remote areas as well as those closer to home—will help preserve the health of our oceans and our communities."
For a deeper dive:
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