| Line | ExpoCode | Ship | Cruise Dates | Chief Scientist | Country | |
|---|---|---|---|---|---|---|
| PR18 | 49TU9101_2 | CHOFU MARU | 1991-01-24 to 1991-01-31 | Haruo Miyagi | JPN | |
| PR18 | 49TU9104_1 | CHOFU MARU | 1991-04-27 to 1991-05-07 | Michio Aoyama | JPN | |
| PR18 | 49TU9107_2 | CHOFU MARU | 1991-08-03 to 1991-08-10 | Tomoaki Hinata | JPN | |
| PR18 | 49TU9110_1 | CHOFU MARU | 1991-10-16 to 1991-10-29 | Eiichi Moriyama | JPN | |
| PR18 | 49TU9204_1 | CHOFU MARU | 1992-04-25 to 1992-05-06 | Tomoaki Hinata | JPN | |
| PR18 | 49TU9207_1 | CHOFU MARU | 1992-07-24 to 1992-07-31 | Eiichi Moriyama | JPN | |
| PR18 | 49TU9210_1 | CHOFU MARU | 1992-10-05 to 1992-10-17 | Y. Tomiyama | JPN | |
| PR18 | 49TU9301_1 | CHOFU MARU | 1993-01-19 to 1993-01-27 | Kan Kimura | JPN | |
| PR18 | 49TU9304_1 | CHOFU MARU | 1993-04-26 to 1993-05-06 | Tomoaki Hinata | JPN | |
| PR18 | 49TU9307_1 | CHOFU MARU | 1993-07-21 to 1993-07-30 | Eiichi Moriyama | JPN | |
| PR18 | 49TU9310_1 | CHOFU MARU | 1993-10-18 to 1993-10-25 | Y. Tomiyama | JPN | |
| PR18 | 49TU9401_1 | CHOFU MARU | 1994-01-18 to 1994-01-24 | Kan Kimura | JPN | |
| PR18 | 49TU9404_1 | CHOFU MARU | 1994-04-26 to 1994-05-02 | JPN | ||
| PR18 | 49TU9407_1 | CHOFU MARU | 1994-07-20 to 1994-07-29 | Ryohei Okada | JPN | |
| PR18 | 49TU9410_1 | CHOFU MARU | 1994-10-06 to 1994-10-08 | Kan Kimura | JPN | |
| PR18 | 49TU9501_1 | CHOFU MARU | 1995-01-17 to 1995-01-23 | Tomoaki Hinata | JPN | |
| PR18 | 76ADPR18 | XIANG YANG HONG 16 | CHN |
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