Table 5.
L. monocytogenes prevalence (average ± standard deviation) in the region by season and watershed.
| Watershed | Season | P-value1 | |||
|---|---|---|---|---|---|
| Fall | Winter | Spring | Summer | ||
| All | 24 ± 14%A3 | 48 ± 19%BC | 57 ± 17%B | 34 ± 14%AC | <0.0001 |
| Gabilan | 36 ± 34% | 66 ± 30%xy | 74 ± 27% | 72 ± 31%x | 0.2222 |
| Carr Lake | 32 ± 14%A | 54 ± 17%B xy | 60 ± 9%B | 24 ± 12%Ay | 0.0003 |
| Salinas River | 17 ± 15% | 35 ± 20%y | 43 ± 25% | 26 ± 23%y | 0.0784 |
| Tembladero | 26 ± 9%A | 72 ± 14%Bx | 59 ± 24%B | 24 ± 17%Ay | 0.0005 |
| Alisal | 19 ± 11% | 44 ± 15%xy | 46 ± 27% | 34 ± 23%xy | 0.236 |
| P-value2 | 0.3261 | 0.0155 | 0.1563 | 0.0068 | |
1
P-values in this column were calculated from the data in the corresponding row.
2
P-values in this row were calculated from the data in the corresponding column, except for the data in the row marked “All sampling sites.”
3
Capital letters indicate statistical groupings by row with values sharing letters having no statistical difference. Lower case letters indicate statistical groupings within a column (for the different watersheds only). Letters are shown only for values that have a p-value < 0.05.