Table 3. Source-sink dynamics for Singapore's coral reefs.
| Source sites | Potential sink sites | ||||||||||||||||||
| Raffles Lighthouse | Pulau Biola | Pulau Senang | Pulau Pawai | Berkas | Pulau Sudong | Bemban | Salu | Terumbu Raya | Semakau | Pulau Jong | Sisters' islands | St John's island | Pulau Hantu | Terumbu Pempang | Kusu | Pulau Tekukor | Cyrene | Labrador | |
| Raffles Lighthouse 01 | 18.9 | 13.2 | 5.4 | 4.3 | 7.2 | 5.3 | 3.9 | 19.6 | 3.6 | 2.2 | 11.2 | 14.2 | 11.6 | 7.2 | 17.6 | 3.1 | 21.6 | 33.9 | 17.7 |
| Raffles Lighthouse 02 | 17.9 | 12.5 | 5.1 | 4.0 | 6.8 | 5.0 | 3.7 | 18.5 | 3.4 | 2.1 | 10.6 | 13.5 | 11.0 | 6.9 | 16.7 | 2.9 | 20.4 | 32.1 | 16.7 |
| Biola 01 | 20.1 | 14.0 | 5.7 | 4.5 | 7.6 | 5.5 | 4.1 | 20.5 | 3.8 | 2.3 | 11.8 | 15.0 | 12.3 | 7.6 | 18.5 | 3.3 | 22.7 | 35.5 | 18.6 |
| Biola 02 | 21.4 | 14.9 | 6.1 | 4.7 | 8.0 | 5.8 | 4.3 | 21.6 | 4.0 | 2.5 | 12.5 | 15.9 | 13.0 | 8.0 | 19.3 | 3.5 | 24.0 | 37.4 | 19.6 |
| Biola 03 | 21.3 | 14.8 | 6.0 | 4.7 | 8.0 | 5.8 | 4.3 | 21.5 | 4.0 | 2.5 | 12.4 | 15.8 | 12.9 | 8.0 | 19.3 | 3.5 | 23.9 | 37.2 | 19.6 |
| Senang | 23.2 | 16.2 | 6.6 | 5.1 | 8.7 | 6.4 | 4.7 | 23.5 | 4.3 | 2.7 | 13.7 | 17.4 | 14.2 | 8.7 | 21.1 | 3.9 | 26.3 | 40.7 | 21.5 |
| Pawai | 22.6 | 15.8 | 6.5 | 5.0 | 8.5 | 6.2 | 4.6 | 23.0 | 4.2 | 2.6 | 13.3 | 17.0 | 13.9 | 8.5 | 20.6 | 3.8 | 25.7 | 39.9 | 21.0 |
| Berkas | 22.9 | 16.3 | 6.7 | 5.3 | 9.1 | 6.8 | 4.9 | 25.3 | 4.6 | 2.8 | 14.4 | 18.6 | 15.2 | 9.4 | 23.0 | 4.1 | 28.4 | 44.7 | 23.6 |
| Sudong | 21.1 | 15.1 | 6.3 | 5.1 | 8.6 | 6.5 | 4.7 | 24.5 | 4.4 | 2.7 | 13.7 | 17.7 | 14.5 | 9.1 | 22.3 | 3.8 | 27.1 | 43.4 | 22.8 |
| Salu | 18.8 | 13.7 | 5.8 | 4.8 | 8.1 | 6.3 | 4.4 | 23.9 | 4.2 | 2.5 | 12.9 | 16.6 | 13.6 | 8.8 | 21.9 | 3.4 | 25.8 | 42.5 | 21.9 |
| Beting Bemban Besar 01 | 26.6 | 18.8 | 7.7 | 6.0 | 10.3 | 7.5 | 5.5 | 27.9 | 5.2 | 3.2 | 16.4 | 21.2 | 17.4 | 10.4 | 25.2 | 4.9 | 32.1 | 49.3 | 26.5 |
| Beting Bemban Besar 02 | 26.6 | 18.8 | 7.7 | 6.0 | 10.3 | 7.5 | 5.5 | 27.9 | 5.2 | 3.2 | 16.4 | 21.1 | 17.3 | 10.4 | 25.2 | 4.9 | 32.1 | 49.3 | 26.4 |
| Terumbu Raya | 25.2 | 17.9 | 7.4 | 5.8 | 9.9 | 7.3 | 5.4 | 27.3 | 5.0 | 3.1 | 15.9 | 20.5 | 16.8 | 10.2 | 24.7 | 4.7 | 31.2 | 48.2 | 25.9 |
| Semakau 01 | 27.2 | 19.2 | 7.8 | 6.1 | 10.5 | 7.6 | 5.6 | 28.3 | 5.2 | 3.2 | 16.7 | 21.5 | 17.7 | 10.5 | 25.5 | 5.0 | 32.6 | 49.8 | 26.9 |
| Semakau 02 | 25.1 | 17.8 | 7.3 | 5.8 | 9.8 | 7.3 | 5.3 | 27.0 | 5.0 | 3.1 | 15.7 | 20.3 | 16.6 | 10.1 | 24.4 | 4.6 | 30.9 | 47.8 | 25.5 |
| Semakau 03 | 26.8 | 18.9 | 7.7 | 6.0 | 10.3 | 7.6 | 5.6 | 28.0 | 5.2 | 3.2 | 16.5 | 21.2 | 17.4 | 10.4 | 25.2 | 4.9 | 32.2 | 49.5 | 26.5 |
| Semakau 04 | 26.3 | 18.6 | 7.6 | 6.0 | 10.2 | 7.5 | 5.5 | 27.7 | 5.1 | 3.2 | 16.3 | 21.0 | 17.2 | 10.3 | 25.1 | 4.8 | 31.9 | 48.9 | 26.3 |
| Semakau 05 | 26.6 | 18.8 | 7.7 | 6.0 | 10.3 | 7.5 | 5.5 | 27.8 | 5.2 | 3.2 | 16.3 | 21.1 | 17.3 | 10.4 | 25.2 | 4.8 | 32.0 | 49.3 | 26.4 |
| Terumbu Semakau | 24.8 | 17.7 | 7.3 | 5.8 | 9.8 | 7.3 | 5.3 | 27.1 | 5.0 | 3.0 | 15.7 | 20.3 | 16.6 | 10.1 | 24.5 | 4.6 | 30.9 | 48.0 | 25.7 |
| Jong 01 | 28.3 | 20.1 | 8.2 | 6.4 | 11.0 | 8.0 | 5.9 | 29.7 | 5.5 | 3.4 | 17.7 | 23.0 | 18.9 | 11.1 | 26.8 | 5.5 | 35.0 | 52.7 | 28.9 |
| Jong 02 | 28.3 | 20.1 | 8.2 | 6.4 | 11.0 | 8.0 | 5.9 | 29.7 | 5.5 | 3.4 | 17.7 | 23.0 | 18.9 | 11.1 | 26.8 | 5.5 | 35.0 | 52.7 | 28.9 |
| Terumbu Pempang Tengah | 22.6 | 16.2 | 6.7 | 5.4 | 9.1 | 6.9 | 4.9 | 25.7 | 4.6 | 2.8 | 14.6 | 18.8 | 15.4 | 9.5 | 23.3 | 4.1 | 28.8 | 45.6 | 24.2 |
| Hantu | 23.2 | 16.6 | 6.9 | 5.5 | 9.3 | 7.0 | 5.1 | 26.2 | 4.8 | 2.9 | 14.9 | 19.3 | 15.8 | 9.7 | 23.8 | 4.3 | 29.6 | 46.5 | 24.7 |
| Sisters 01 | 31.4 | 22.2 | 9.0 | 6.9 | 12.0 | 8.5 | 6.4 | 31.4 | 5.9 | 3.7 | 19.4 | 25.2 | 20.8 | 11.9 | 28.4 | 6.2 | 37.9 | 56.0 | 31.1 |
| Sisters 02 | 46.2 | 32.1 | 12.5 | 9.2 | 16.2 | 10.8 | 8.5 | 38.8 | 7.7 | 5.0 | 26.6 | 34.6 | 28.5 | 14.9 | 34.5 | 9.7 | 50.2 | 68.6 | 39.6 |
| Kusu 01 | 45.6 | 31.7 | 12.4 | 9.1 | 16.0 | 10.7 | 8.4 | 38.1 | 7.5 | 4.9 | 26.4 | 34.5 | 28.5 | 14.7 | 34.0 | 9.8 | 49.9 | 67.8 | 39.2 |
| Kusu 02 | 46.5 | 32.4 | 12.6 | 9.2 | 16.3 | 10.7 | 8.5 | 38.6 | 7.7 | 5.0 | 26.9 | 35.1 | 29.0 | 14.9 | 34.4 | 10.1 | 50.7 | 68.5 | 39.9 |
| Cyrene | 21.4 | 15.6 | 6.5 | 5.4 | 9.1 | 7.0 | 4.9 | 26.6 | 4.7 | 2.8 | 14.6 | 19.0 | 15.6 | 9.8 | 24.3 | 4.0 | 29.6 | 48.0 | 25.4 |
Summation matrix of settled larvae (per 10,000 m2) showing the potential sources (rows) versus sinks (column) among the Southern Islands coral reefs. Source sites are arranged according to the descending shortest straight-line distance to the mainland.