Quantcast
Popular
Photo credit: Uwe Kils / Wikimedia Commons

Toxic Chemicals Banned in 70s Found in Deep Ocean Creatures

English researchers have discovered an alarming amount of toxic pollution in the bodies of amphipods living in the deep sea trenches of the Pacific Ocean. The research team from Newcastle University, the James Hutton Institute and the University of Aberdeen caught and tested small crustaceans in the Mariana and Kermadec trenches, which reach about 30,000 feet deep.


Map of the Mariana TrenchFree World Maps

Dr. Alan Jamieson led the team and is lead author of the study, Bioaccumulation of persistent organic pollutants in the deepest ocean fauna, which was published online in the journal Nature Ecology & Evolution in February.

"Here we identify extraordinary levels of persistent organic pollutants in the endemic amphipod fauna from two of the deepest ocean trenches … " the study abstract states. The study also explains that the creatures tested contained more pollutants than similar crustaceans from some of the earth's most polluted waters, including China's Liaohe River and Japan's Suruga Bay.

The amphipods held "10 times the level of industrial pollution than the average earthworm," a Newcastle press release stated.

The researchers employed remotely-operated vehicles to trap the amphipods.

"We still think of the deep ocean as being this remote and pristine realm, safe from human impact, but our research shows that, sadly, this could not be further from the truth," Jamieson said. The study "really brings home the long term, devastating impact that mankind is having on the planet," he added.

Some of the chemicals found have been banned since the 1970s, including polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs). PBDEs were used as flame retardants and PCBs as electrical insulators and unfortunately, more than one million tons were produced before the ban.

These chemicals are known as Persistent Organic Pollutants and are highly resistant to natural deterioration. The research team speculates that the creatures tested may have eaten plastic debris or polluted animal carcasses that sunk into the trenches.

The team plans to explore what these findings mean for the wider ecosystem and determine how, if possible, to avoid further damage to this deep-sea habitat.

Show Comments ()

EcoWatch Daily Newsletter

Sponsored
Animals
Two baby Loggerhead turtles. U.S. Air Force / Senior Airman Veronica McMahon

A Record 589 Sea Turtles Killed By Florida's Toxic Red Tide

Florida's longest red tide in more than a decade has killed scores of the state's most iconic marine animals.

The current outbreak, which began in October 2017 off southwest Florida, has been tied to a record 589 sea turtle deaths and 213 manatee deaths, the Herald-Tribune reported, citing figures from the Florida Fish and Wildlife Conservation Commission.

Keep reading... Show less
Animals
Lake Baikal. W0zny / Wikimedia / CC BY-SA 3.0

Wildlife Under Siege at the World’s Oldest Lake

By Marlene Cimons

Lake Baikal is the world's oldest and deepest lake. It's at least 20 million years old, and roughly a mile deep at its lowest point. The Siberian lake contains holds more water than all the North American Great Lakes combined, what amounts to more than one-fifth of all the water found in lakes, swamps and rivers. It was formed by the shifting of tectonic plates, which created a valley that filled with water. That shift continues today at a rate of around 1 to 2 centimeters year, meaning the world's biggest lake is only getting bigger.

Keep reading... Show less
Insights/Opinion
Oil rig operating next to a walk and bike way in the Signal Hill area of Los Angeles. Sarah Craig / Faces of Fracking / CC BY-NC-ND 2.0

U.S. Oil and Gas Industry Is Drilling Us Towards Climate Disaster

By Kelly Trout

As the 116th Congress commences, in the wake of dire reports from climate scientists, the debate over U.S. climate policies has taken a welcome turn towards bold solutions. Spurred on by grassroots pressure from Indigenous communities, the youth-led Sunrise Movement and communities from coast to coast fighting fossil fuel infrastructure, Capitol Hill is alive once again with policy proposals that edge towards the scale required to address the crisis we're in.

Keep reading... Show less
Animals
Bumblebee on goldenrod. Jim Hudgins / USFWS

Half of Michigan's Bumblebee Species in Decline, One Extinct

Honeybees get a lot of attention for their worrisome decline, but many species of bumblebees—which are key pollinators—are also in trouble.

In Michigan, half of its bumblebee species have declined by 50 percent or more, Michigan Radio reported.

Keep reading... Show less
Sponsored
Popular
Bound bales of crushed plastic bottles and containers sit stacked ready to be recycled at a recycling center in the Netherlands. Jasper Juinen / Bloomberg / Getty Images

Toward a Circular Economy: Tackling the Plastics Recycling Problem

By Margaret Sobkowicz

Why has the world continued to increase consumption of plastic materials when at the same time, environmental and human health concerns over their use have grown?

Keep reading... Show less
Oceans
Bleached coral at the Great Barrier Reef. The Ocean Agency / XL Catlin Seaview Survey / Richard Vevers

2018 Was the Hottest Year Ever Recorded for Our Oceans

The year 2018 was the hottest year for the planet's oceans ever since record-keeping began in 1958, according to a worrisome new study from international scientists.

The findings, published Wednesday in the journal Advances in Atmospheric Sciences, noted that the five warmest years for our oceans were the last five years—2018, 2017, 2015, 2016 and 2014 (in order of decreasing ocean heat content).

Keep reading... Show less
Sponsored
EPA Acting Administrator Wheeler / EPA

Senate Shouldn’t Put Wheeler at the Wheel of the EPA

By Ana Unruh Cohen

As the longest government shut down in history drags on, and the experts protecting our air and water remain off the job, the Senate is barreling forward to put Andrew Wheeler at the wheel of the U.S. Environmental Protection Agency (EPA). He is unfit for this public trust.

In his seven-month tenure as the acting administrator at EPA, Wheeler's relentlessly pushed to advance the pro-polluter agenda launched by Scott Pruitt, the worst administrator in the agency's storied 48-year history. Wheeler may lack Pruitt's scandals, but he's no improvement.

Keep reading... Show less
Health
Westend61 / Getty Images

Top 20 Healthy Salad Toppings

By Lizzie Streit, MS, RDN, LD

Salads are typically made by combining lettuce or mixed greens with an assortment of toppings and a dressing.

Keep reading... Show less
Sponsored

mail-copy

The best of EcoWatch, right in your inbox. Sign up for our email newsletter!