Table 1. The number of whale survey days and the number of plankton net samples completed in each region in each month of the study conducted in northwest Washington in summer-fall of 2019 and 2020.
| Year | Region | Month | Prey samples | Whale surveys |
|---|---|---|---|---|
| 2019 | Strait | June | 5 | 1 |
| July | 4 | 7 | ||
| August | 12 | 6 | ||
| September | 12 | 7 | ||
| October | 7 | 4 | ||
| November | 7 | 3 | ||
| Ocean | June | 0 | 0 | |
| July | 0 | 2 | ||
| August | 6 | 4 | ||
| September | 12 | 4 | ||
| October | 6 | 3 | ||
| November | 1 | 1 | ||
| 2020 | Strait | June | 0 | 3 |
| July | 16 | 11 | ||
| August | 9 | 4 | ||
| September | 12 | 3 | ||
| Ocean | June | 2 | 1 | |
| July | 21 | 4 | ||
| August | 12 | 0 | ||
| September | 6 | 0 |