| Sampling area | Strain | Fermentation |
| Hakkeijima (Kanagawa) | HK6 | + |
| HK21 | + | |
| HK27 | + | |
| Tokyo University of Marine Science and Technology (Tokyo) | K6-38 | + |
| Tokyo Bay (Tokyo) | RB59 | + |
| Miura Peninsula (Kanagawa) | M5 | + |
| M6 | + | |
| M7 | + | |
| M10 | + | |
| M22 | + | |
| M39 | + | |
| M43 | + | |
| M44 | +++ | |
| M55 | + | |
| M59 | + | |
| M63 | ++ | |
| M68 | ++ | |
| M69 | + | |
| M73 | + | |
| Shizugawa Bay (Miyagi) | T2 | + |
| T5 | + | |
| T9 | +++ | |
| T13 | + | |
| Tokyo Bay (Tokyo) | C-19 | + |