TABLE 1.
Samples used in this study
| Collection site | Habitat | Sample | Water depth (m) | No. (date) of dive | Manned submersible or unmanned ROVa | Instrument used for collection | Reference(s) |
|---|---|---|---|---|---|---|---|
| Kremlin site, TAG mound, Mid-Atlantic; 26°08.212′ N; 44°49.611′ W | Hydrothermal vent | Fragments of sulfide anhydrite chimney | 3,655 | 433 (May 1998) | Shinkai 6500 | Submersible's manipulator | 16 |
| Mid-Okinawa Trough; 27° 47.220′ N; 126°53.906′ E | Hydrothermal vent | Vent mussel, Bathymodiolus sp. | 1,035 | 416 (April 1999) | ROV Dolphin 3K | Submersible's manipulator | 34 |
| Hydrothermal vent water collected in vicinity of mussel colony | van Dorn water sampler | ||||||
| Sagami Trough; 35°59.9′ N; 139°13.6′ E | Bathyal seep | Tubeworm, Lamellibrachia sp. | 1,199 | 1,144 (October 1999) | Shinkai 2000 | Submersible's manipulator | 33, 59 |
| Sediment collected around tubeworm colony | Push-core sampler | ||||||
| Japan Trench; 40°02.85′ N; 144°16.50′ E | Hadal seep | Reducing sediment | 7,434 | 112 (April 1999) | ROV Kaiko | Push-core sampler | 15 |
| Northern Okushiri Ridge; 44°14′ N; 139°46.200′ E | Possible seep | Reducing sediment | 1,709 | 1,125 (August 1999) | Shinkai 2000 | Push-core sampler | 45 |
a
All submersibles were provided by JAMSTEC.