| Sampling area | Strain | Fermentation |
| Hakkeijima (Kanagawa) | HK6 | +++ |
| HK21 | +++ | |
| HK27 | +++ | |
| Tokyo University of Marine Science and Technology (Tokyo) | K6-38 | +++ |
| Tokyo Bay (Tokyo) | RB59 | + |
| RB60 | + | |
| Miura Peninsula (Kanagawa) | M39 | ++ |
| M46 | + | |
| Tokyo Bay (Tokyo) | C-19 | +++ |