Working with scientists from the U.S. Geological Survey, Dr. Thomas Huntington and Dr. George Aiken, Balch reported in a recent paper an overall reduction in productivity in the Gulf of Maine.
The researchers found that the amount of dissolved organic carbon from rivers emptying into the Gulf of Maine has increased over the last 80 years, a trend they predict will continue through 2100 if annual precipitation continues to increase. The adjacent Gulf of St. Lawrence also was found to supply a significant amount of organic material into the Gulf of Maine via the Scotia Shelf Current. Collectively, these conditions appear to be contributing to the decline in the Gulf’s primary productivity, as reported in the American Geophysical Union’s journal, Global Biogeochemical Cycles, Volume 30, Issue 2, February 2016, pages 268-292.
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