Debris patch from Japan’s tsunami en route to US

As if the tragic loss of life and ongoing nuclear woes weren’t enough, researchers Nikolai Maximenko and Jan Hafner at the International Pacific Research Center, University of Hawaii, predict that the massive deluge of debris that last month’s tsunami washed into the  sea is headed across the Pacific.  Using data from drifting oceanic buoys, the model predicts the debris will first spread out within the North Pacific Subtropical Gyre and start washing up in the Papahanaumokuakea Marine National Monument (NW Hawaiian islands) in a year.  In three years, the rest of the Hawaiian islands, the US West Coast, British Columbia, Alaska, and Baja California will see effects on their shorelines.  After the journey, the researchers predict that the debris will enter the North Pacific Garbage Patch and eventually get broken done into smaller particles.  In five years, Hawaii is expected to see another, more severe plume of oceanic trash.  Hopefully, these projections will help to inform clean-up responses.  The oceanic trash that does not either wash up on shorelines or sink, can end up in marine organisms.

The animation from the International Pacific Research Center shows likely debris path and timeline (press release, PDF).  Top image: Debris offshore of Honshu, Japan.  Image:  US Navy.  Hat tip:  Emmet Duffy at SeaMonster.

Marine debris

The 5th International Marine Debris Conference has been ongoing this week in Honolulu, Hawaii.  The above video from NOAA gives some insight as to what is meant by ‘marine debris’ and why it’s an issue.  While the video focuses on the larger pieces of debris, it’s important to remember that microplastic pollution, especially as they accumulate in oceanic gyres over time, is an another issue of enormous consequence to ocean creatures great and small.

You can follow the conference on the Twitter machine here and by keeping up with the hashtag #5imdc for the extra Twitter literate.  For more information, check out the Seaplex Science blog (more about the Seaplex expedition here) which debunks some misleading headlines about the North Pacific garbage patch.  Miriam Goldstein, a PhD student at the Scripps Institution of Oceanography, studies the impacts of plastics on marine invertebrates and frequently talks plastic over at Deep-Sea News, along with various sea shanties of course.

Find out about NOAA’s Marine Debris Program here.