Mid-Atlantic Bight Sediment Denitrification Rates

Between October 2009 and August 2013, we sampled
four sites in the inner and outer continental shelf directly south of
Narragansett Bay and Nantucket Shoals (Figure S1). We had three inner
continental shelf sites, designated as Block Island
Sound (BIS; 12 site visits, n = 40) and Rhode Island Sound 1 and 2 (RIS1: 4 site
visits, n = 12 and RIS2: 11 site visits, n = 33). We had one outer
continental shelf, designated as the “mud patch” (MP; 3 site visits, n = 23)
(Figure S1). Only three sites were sampled in 2009 (BIS, RIS1, and RIS2), the
full suite of sites were subsequently sampled from 2010 to 2013. We
conducted sampling in January, May, July, August, September, and October to
capture the seasonal range in this system.