Table 1.
Date and associated data from 11 successful spawning events between 20 August 2018 and 25 August 2020 using a common pool of 13 D. antillarum broodstock.
| Spawn date | Holding temperature (°C) | Spawn temperature (°C) | # Females spawning | # Males spawning | % of population spawning | Millions of eggs extracted (mean ± 95 CI*) | % Fertilization rate (mean ± 95 CI*) |
|---|---|---|---|---|---|---|---|
| 20/8/18 | 26.0 | 31.0 | 2 | 5 | 53.8 | 2.2 ± 0.6 | 89.5 ± 2.1 |
| 17/9/18 | 26.2 | 31.0 | 2 | 3 | 38.5 | 15.3 ± 2.3 | 94.2 ± 3.7 |
| 5/10/18 | 26.3 | 31.0 | 2 | 1 | 15.4 | 1.8 ± 0.4 | 98.5 ± 0.4 |
| 7/11/18 | 25.0 | 30.0 | 3 | 4 | 53.8 | 4.7 ± 0.2 | 94.9 ± 5.4 |
| 18/2/19 | 23.9 | 30.0 | 2 | 2 | 30.8 | 3.8 ± 0.9 | 90.2 ± 2.7 |
| 21/5/19 | 26.8 | 31.0 | 1 | 1 | 15.4 | 9.3 ± 1.5 | 99.9 ± 0.3 |
| 18/9/19 | 27.8 | 34.5 | 3 | 1 | 30.8 | 3.7 ± 0.2 | 96.4 ± 0.5 |
| 29/10/19 | 26.7 | 31.0 | 1 | 4 | 38.5 | 2.7 ± 0.3 | 95.3 ± 1.7 |
| 29/1/20 | 23.9 | 31.0 | 3 | 3 | 46.2 | 5.8 ± 0.7 | 93.3 ± 4.6 |
| 12/6/20 | 26.3 | 31.7 | 2 | 1 | 23.1 | 3.9 ± 1.2 | 86.3 ± 14.2 |
| 25/8/20 | 25.9 | 32.3 | 3 | 1 | 30.8 | 1.9 ± 0.4 | 95.8 ± 1.8 |
Number of eggs extracted and fertilization rates reflect a 95% confidence interval (n = 3 counts per range).
*CI confidence interval.