Table 2.
Mortality and survival of the Mercenaria mercenaria during the heat shock challenge
| Acclimation (mortality) | Survived quahogs (%) | ||||
|---|---|---|---|---|---|
| Quahog# | Phase I (mortality) | Phase II (mortality) | Phase III (Survival) | ||
| Heat Challenge | 24℃ | From 24 to 35℃ @ 1℃/day and at 35℃ | From 35℃ to 26℃ | At 24℃ (10 days after heat shock) | |
| Farm 1 (CK) | 15 | 348 | 131 (38%) | 124 (36%) | 93 (26%) |
| Farm 2 (SC) | 19 | 347 | 159 (46%) | 104 (30%) | 84 (24%) |
| Farm 3 (UF) | 3 | 350 | 193 (55%) | 100 (29%) | 57 (16%) |
| TOTAL | 1045 | 483 | 328 | 223 | |
| Farm 1 (CK) | Quahog # for genotyping | 88 | 56 | 92 | |
| Farm 2 (SC) | 90 | 44 | 82 | ||
| Farm 3 (UF) | 152 | 44 | 57 | ||
| TOTAL | 330 | 144 | 231 | ||