Table 2 Results of significant differences (Mann–Whitney U test) between oyster densities on mussel beds between the islands of Amrum and Föhr (Amrum Deep), based on the comparison of annual summer (June–August) data
From: High mortality of Pacific oysters in a cold winter in the North-Frisian Wadden Sea
NA01 | NA02 | NA03 | |
|---|---|---|---|
2005–2006 | 0.10 | 0.07 | 0.78 |
2006–2007 | 0.39 | 0.43 | 0.35 |
2007–2008 | 0.046 | 0.20 | 0.78 |
2008–2009 | 0.18 | 0.19 | 0.86 |
2009–2010 | 0.01 | 0.89 | 0.58 |