Skip to main content

Sign up for our newsletter.

Quality journalism. Progressive values. Direct to your inbox.

Plastic waste fills a beach on April 18, 2018 in Manila, Philippines. (Photo: Jes Aznar/Getty Images)

Plankton Research Equipment Inadvertently Reveals Skyrocketing Plastic Pollution Levels in World's Oceans

"The message is that marine plastic has increased significantly and we are seeing it all over the world."

Julia Conley

The equipment was towed across millions of miles of ocean for six decades by marine scientists, meant to collect plankton—but its journeys have also given researchers a treasure trove of data on plastic pollution.

The continuous plankton reporter (CPR) was first deployed in 1931 to analyze the presence of plankton near the surface of the world's oceans. In recent decades, however, its travels have increasingly been disrupted by entanglements with plastic, according to a study published in Nature Communications on Tuesday.

"The message is that marine plastic has increased significantly and we are seeing it all over the world, even in places where you would not want to, like the Northwest Passage and other parts of the Arctic," Clare Ostle, a researcher at the Marine Biological Association in Plymouth, England, told the Guardian.

The CPR originated in northern England and has been continuously towed by boats across more than 6.5 million miles of ocean for more than 60 years.

It was first disrupted by plastic entanglement in 1957, when a fishing line got in its way. Eight years later the CPR ran into a plastic bag. The disruptions became increasingly common in the following years.

Frequency of entanglement occurrence of continuous plankton recorder.

By the 1990s, two percent of the CPR's missions were disrupted by plastic pollution—mainly discarded nets and other fishing equipment, as well as other plastic products.

The rate of disruption is now between three and four percent, according to scientists at the Marine Biological Association and the University of Plymouth, who compiled the research.

The CPR is pulled by boats at a depth of about 22 feet (7 meters) below the ocean surface, where many marine creatures live—confirming earlier studies which have found that marine life has been increasingly threatened by plastic pollution.

"The realization that plastics are ubiquitous, and that the consequent health impacts are yet to be fully understood, has increased the awareness surrounding plastics," the report reads. "There is a need for re-education, continued research, and awareness campaigns, in order to drive action from the individual as well as large-scale decisions on waste-management and product design."

"The dataset presented here," the authors said, "is an important historical record for the continued monitoring of plastics in the ocean, and confirms the importance of actions to reduce and improve plastic waste."


Our work is licensed under Creative Commons (CC BY-NC-ND 3.0). Feel free to republish and share widely.

This is the world we live in. This is the world we cover.

Because of people like you, another world is possible. There are many battles to be won, but we will battle them together—all of us. Common Dreams is not your normal news site. We don't survive on clicks. We don't want advertising dollars. We want the world to be a better place. But we can't do it alone. It doesn't work that way. We need you. If you can help today—because every gift of every size matters—please do. Without Your Support We Simply Don't Exist.

Judge Blocks Biden From Continuing 'Inhumane' Trump Policy to Deport Families

"This is not the end of the battle against this practice," said one rights group, "but it is a major step to ensure that the U.S. welcomes these asylum-seeking families—as we should."

Jessica Corbett ·


400+ Economists Press Congress to Permanently Expand Child Tax Credit

Such an expansion would "dramatically reduce childhood poverty in the United States," they said.

Andrea Germanos ·


Biden Admin. Sued for Letting Big Oil Harass 'Imperiled' Polar Bears

"We're hopeful the court will overturn this dangerous rule that puts polar bears in the crosshairs."

Jessica Corbett ·


'Cruel and Callous': Biden Slammed for Resuming Deportations to Battered Haiti

"Hours after the 7.2 magnitude earthquake, President Joe Biden released a statement saying that the United States was a 'friend' of Haiti. A 'friend' does not continuously inflict pain on another friend," said Guerline Jozef of the Haitian Bridge Alliance.

Kenny Stancil ·


Indian Civil Society Groups to Biden: Force J&J to Share Vaccine Recipe With the World

"His administration has the moral, legal, and if necessary, financial power to lift intellectual property barriers and persuade J&J to license its vaccine."

Jake Johnson ·

Support our work.

We are independent, non-profit, advertising-free and 100% reader supported.

Subscribe to our newsletter.

Quality journalism. Progressive values.
Direct to your inbox.

Subscribe to our Newsletter.


Common Dreams, Inc. Founded 1997. Registered 501(c3) Non-Profit | Privacy Policy
Common Dreams Logo