Table 4. Biogeographic distribution of fish species observed among the Pitcairn Islands based on and density (no. individuals m−2).
| Distribution | Total | Ducie | Henderson | Oeno | Pitcairn |
| Anti-tropical | 9.1 | 2.4 | 13.8 | 4.3 | 12.0 |
| Circumtropical | 0.3 | 0.5 | 0.4 | 0.0 | 0.3 |
| Central Pacific | 1.2 | 2.5 | 0.7 | 1.4 | 0.7 |
| Indo-Pacific | 22.6 | 20.7 | 13.9 | 29.8 | 46.0 |
| Pacific | 20.1 | 16.8 | 22.7 | 21.0 | 11.1 |
| Pitcairn endemic* | 1.7 | 1.8 | 1.1 | 3.3 | 0.0 |
| Pitcairn regional endemic# | 44.6 | 55.5 | 47.3 | 39.4 | 29.2 |
| South Pacific | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Subtropical South Pacific | 0.4 | 0.0 | 0.1 | 0.8 | 0.7 |
Values are percentage of total for all four islands combined and for each island individually.
Pitcairn endemic*: only found at the Pitcairn Islands;
Pitcairn regional endemic#: found at Pitcairn and Easter/Salas y Gómez and/or Tuamotus/Austral Islands.