Initiated Site, Town A D T L S Obs. R 2009 Lewes-Rehoboth Canal 38 65 103 -28 36.9% X 2009 Potnets, Indian River Bay 6 2 8 67 75.0% XX 2009 Jefferson Creek, South Bethany 27 23 50 25 54.0% 2009 Lighthouse Cove, Fenwick Island 26 24 50 25 52.0% X 2010 Potnets, Indian River Bay 20 9 29 46 69.0% XX 2010 Lighthouse Cove, Fenwick Island 15 6 21 54 71.4% X 2011 Torquay Canal, Rehoboth Beach 36 34 70 5 51.4% 2011 Sunset Harbor, Ocean View 38 31 69 6 55.1% XX 2011 Jefferson Creek, South Bethany 31 28 59 16 52.5% X 2011 Strawberry Landing, South Bethany 33 26 59 16 55.9% 2011 S. Schultz canal, Fenwick Island 26 44 70 5 37.1% X Totals 296 292 588 237 50.3%

(A) = The number of alive oysters found (D) = The number of dead oysters found (T) = The total number of oysters found (A+D) (L) = The number of lost/missing oysters. (Calculated by subtracting the total found (T) from the initial 75). (S) = The survival rate (A/T) (Obs. R) = Observed natural recruitment. (X) = recruitment of oysters were found on nearby riprap, oysters, or in the quadrat area. (XX) = much greater recruitment abundance (>25 oysters)

Table 1: Fate of oysters in riprap study. Data is geographically referenced from north to south on the fate of oysters established in quadrats after approximately 1yr.