The leatherback sea turtle has spent over 100 million years living beneath the ocean’s waves. It is the longest surviving and one of the largest reptiles on earth. With a heritage that goes back to the dinosaur era, the leatherback sea turtle’s impressive list of accomplishments is virtually unmatched.
Leatherback sea turtles:
Weigh in between 500 and 2,000 pounds
Can reach lengths from 4 to 8 feet long
Live up to 100 years
Dive to extreme depths, often deeper than 4,000 feet
Swim great distances, such as traveling over 7,000 miles
It’s impossible not to be if you work in the ocean trash world. Every year International Coastal Cleanup volunteers pickup more cigarette butts off our beaches than any other item by an order of magnitude. Since the Cleanup’s inception in 1986, cigarette butts have been the number one item on Ocean Conservancy’s annual Top Ten list, which highlights the most persistent items of ocean trash found globally. And while 2012 Cleanup data are still being compiled, I suspect cigarette butts will retain their title for another year.
What’s the big deal you might ask? Well inside each of those butts is a filter—unfiltered cigarettes excluded—made of cellulose acetate, a slow-degrading plastic. These plastic fibers are packed tightly together to create a filter, which often resembles cotton in appearance. So even though Cleanup volunteers have kept more than 55 million cigarette butts off beaches and out of the ocean over the years, the ultimate fate of these tiny plastics is still the landfill because there’s simply no value in a butt…or is there?
How do scientists choose their life’s work? For avid surfer Nick Mallos, a love of the ocean made marine biology an easy choice. But it was a black-and-white bird with a 6-foot wingspan that inspired him to focus his research on marine debris and clean up as many beaches as he can.
Nick first encountered the Laysan albatross during a grad school research trip to Midway Atoll in the North Pacific. With over 450,000 nesting pairs, Midway Atoll is home to the largest Laysan population in the world. The birds cover the 2.4 square-mile area, nesting in every available nook, from abandoned WWII gun turrets to grassy cracks in the pavement.
But once you look beyond those birds, “you realize there’s this scattering of plastic over the entire island,” Nick says. “It’s impossible to not see plastic – it’s just everywhere. The most perverse part of it is that it’s most heavily concentrated around every nest.”
Ocean Conservancy created a Tsunami Debris Field Guide that highlights the most common items of debris that have been washing onto West Coast beaches. Click the image to download the complete version.
Marine debris generated from the March 11th tsunami is drastically different from the ocean trash that was already plaguing our ocean. Over the coming months, there may be many difficult-to-collect debris items from the tsunami such as housing and construction materials, fishing gear and vessels. We could also find potentially dangerous items such as combustibles, as well as personal items related to the victims. Therefore, it is critical that volunteers and beachcombers document each item of debris they encounter on beaches with the highest level of scrutiny.
Ocean Conservancy welcomes Japan’s contribution of support and assistance to the tsunami debris response effort – and just as governments are working together on the issue, so have nonprofit organizations. For more than 20 years, Ocean Conservancy has worked closely with our partners, the Japanese Environmental Action Network, tackling preventable ocean trash. Now, they are on the forefront for response efforts following the tsunami. The magnitude of debris that will wash onto U.S. West coast beaches remains uncertain; therefore, the best action we can take at the moment is ensuring we are adequately prepared to handle any and all predicted debris.
The coast of southeast Alaska is renowned for its stunning beauty, and the pocket beach outside the town of Sitka was no exception: dark sand piled with tangles of storm-tossed logs and fringed with emerald grass. From a distance, the beach looked pristine.
But as our boat pulled closer, we began to see what we had come for: trash. Chunks of polystyrene foam, plastic bottles, lengths of line, bits of faded blue tarp and pieces of netting were wedged in the piles of driftwood and strewn in the beach grass. It was time to get to work.
I was in Sitka to take part in a series of beach cleanups that brought together staff from Ocean Conservancy, the Marine Conservation Alliance Foundation and the Sitka Sound Science Center, along with volunteers from Allen Marine and Holland America Line. Together, we set out to find and remove marine debris that had washed up on the shores of nearby islands.
Debris in the wrack line shows a typical compilation of the foam and bottles that made up the majority of debris on East Beach. Credit: Ryan Ridge
Remote cleanups in Alaska are not your typical day at the beach; they’re difficult, physically exhausting and resource intensive. The possibility of debris from last year’s tsunami in Japan is adding to the already difficult task.
For the past six years, volunteers from Gulf of Alaska Keeper (GoAK) have spent hundreds of hours removing thousands of pounds of debris from the remote beaches at Gore Point, Alaska; recently though, cleanups on these beaches look very different. Twelve volunteers from GoAK and the Center for Alaskan Coastal Studies (CACS) recently spent six days cleaning roughly two miles of the Gore Point coastline. The cleanup, which was partly funded by a grant from Ocean Conservancy and the National Oceanic and Atmospheric Administration (NOAA) and made possible through volunteer labor and donated boats, collected over 90 cubic yards of debris weighing more than 4,000 pounds—enough to fill an entire school bus. Half of that was foamed plastic.
Large, diverse quantities of debris are the norm at typical beach cleanups, but at Gore Point, data forms were dominated by counts of foamed plastic pieces and foam insulation. Combined, foamed plastic accounted for more than one quarter of total debris weight and over half the volume (greater than 45 cubic yards)—an amount nearly four to six times the average amount of foam debris documented during GoAK’s past cleanups. On one particular beach, a 93-fold increase has been recorded in foamed plastic (by weight) between pre- and post-tsunami cleanups. Patrick Chandler, Special Programs Coordinator at CACS and Alaska State International Coastal Cleanup Coordinator described the severity of foam flotsam:
After spending a long day pulling debris from logs, digging it out of sand and hauling it into piles for pickup, the most disheartening thing to see is a section of beach so covered with small bits of foamed plastic that you know it’s hopeless to try to pick it all up.
The likely source of this foam is insulation from buildings that were destroyed by the March 2011 Japan earthquake and tsunami, and foam buoys commonly used in nearshore aquaculture—conjectures confirmed by Japanese marine debris experts. Continue reading »