Table 2.
Toxicity of ribbon worms collected from Otsuchi Bay, Iwate Prefecture.
| Ribbon worms | Date of collection | No. of specimens | Weight (g) | Toxicity (MU/g ) | HPLC-FLD | GC-MS | ||
|---|---|---|---|---|---|---|---|---|
| (Mean ± S.D.) | (Mean ± S.D.) | TTX | 4epi-TTX | 4,9-anhyTTX | ||||
| Cephalothrix simula | 26 September 2000 | 2 | 0.25 * | 2021 ± 247 | + | ± | + | + |
| Nipponnemertes punctatula | 28 September 2000 | 2 | 0.03 ± 0.01 | ND | + | ± | ± | + |
| Cephalothrix simula | 28 September 2000 | 2 | 0.07 * | 1708 ± 279 | + | ± | ± | + |
| unknown specimen | 28 September 2000 | 12 | 0.22 * | ND | − | − | + | + |
*: combined specimen; ND: not detected; +: Clearly detected; ±: Difficult to detect; −: Not detected.