[Sample of marine debris collected during the two year study. Credit: Caitlin Wesse]
[Dauphin Island Sea Lab] Hurricane Florence came ashore in North Carolina in September, bringing category 1 force winds and substantial amounts of rain and storm surge. After the storm, NOAA worked to make the shipping waters safe for mariners. The same was true along the Florida coast after Hurricane Michael in October, with NOAA surveying waters and noting shipping hazards.
[NRT-Fernandina Beach’s Howie Meyers (ERT) (left) and James Kirkpatrick (right) survey near Panama City, Florida, searching for Navy ship anchors lost during Hurricane Michael.]
Trash, particularly plastic, in the ocean and along the shoreline is an economic, environmental, human health, and aesthetic problem causing serious challenges to coastal communities around the world, including the Gulf of Mexico.
Researchers from the Dauphin Island Sea Lab and the Mission-Aransas National Estuarine Research Reserve teamed up for a two-year study to document the problem along the Gulf of Mexico shorelines. Their findings are documented in the publication, Accumulation and distribution of marine debris on barrier islands across the northern Gulf of Mexico, in ScienceDirect’s Marine Pollution Bulletin.
From February 2015 to August of 2017, the researchers kept tabs on marine debris that washed up on the shoreline every month at 12 different sites on nine barrier islands from North Padre Island, Texas to Santa Rosa, Florida. The trash was sorted by type, frequency, and location.
The most shocking discovery was that ten times more trash washes up on the coast of Texas than any of the other Gulf states throughout the year.
Most of the trash, 69 to 95 percent, was plastic. The plastic items included bottles and bottle caps, straws, and broken pieces of plastic. Researchers also cited that more trash washed ashore during the spring and summer. This could be because more people are outside and on the water during this time.
A helpful note found in the study was the amount of debris accumulating along the shoreline could be predicted with high confidence in areas with high freshwater influx.
Edited for WeatherNation by Meteorologist Mace Michaels
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