The study, published online in the journal Marine Pollution Bulletin, examined stomach contents of beached northern fulmars on the coasts of British Columbia, Canada, and the states of Washington and Oregon, U.S.A.
"Like the canary in the coal mine, northern fulmars are sentinels of plastic pollution in our oceans," says Stephanie Avery-Gomm, the study's lead author and a graduate student in UBC's Department of Zoology. "Their stomach content provides a 'snapshot' sample of plastic pollution from a large area of the northern Pacific Ocean."
Northern fulmars forage exclusively at sea and retain ingested plastics for a long period of time, making them ideal indicators for marine littering. Analysis of beached fulmars has been used to monitor plastic pollution in the North Sea since the 1980s. The latest findings, when compared to previous similar studies, indicate a substantial increase in plastic pollution over the past four decades.
The research group performed necropsies on 67 beached northern fulmars and found that 92.5 per cent had plastics – such as twine, Styrofoam and candy wrappers – in their stomach. An average of 36.8 pieces per bird were found. The average total weight of plastic was 0.385 grams per bird. One bird was found with 454 pieces of plastic in its stomach.
"The average adult northern fulmar weighs five pounds, or 2.25 kilograms," says Avery-Gomm. "While 0.385 grams in a bird may seem inconsequential to us, it's the equivalent of about five per cent of their body mass. It would be like a human carrying 50 grams of plastic in our stomach – about the weight of 10 quarters."
"Despite the close proximity of the 'Great Pacific Garbage Patch,' an area of concentrated plastic pollution in the middle of the North Pacific gyre, plastic pollution has not been considered an issue of concern off our coast," says Avery-Gomm, "But we've found similar amounts and incident rates of plastic in beached northern fulmars here as those in the North Sea. This indicates it is an issue which warrants further study."
The researchers propose annual monitoring of trends in plastic pollution and the effectiveness of marine waste reduction strategies.
"Beached bird surveys are providing important clues about causes and patterns of sea bird mortality from oil spill impacts, fisheries by-catch and now plastic ingestion," says co-author Karen Barry with Bird Studies Canada, a not-for profit organization that helped facilitate the study.
Brian Lin | EurekAlert!
Despite government claims, orangutan populations have not increased. Call for better monitoring
06.11.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
Increasing frequency of ocean storms could alter kelp forest ecosystems
30.10.2018 | University of Virginia
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
09.11.2018 | Event News
06.11.2018 | Event News
23.10.2018 | Event News
16.11.2018 | Health and Medicine
16.11.2018 | Life Sciences
16.11.2018 | Life Sciences