| País | Hong Kong | Ecosistema | South China Sea |
| Localidad | northern South China Sea | Depth | |
| Introducida | Year Intro. | ||
| Estadio de desarrollo | adult | mixed | |
| Quantitative | 1 | Unit | number |
| Semi Quantitative | <100 | Unit | number |
| Qualitative | rare | ||
| Año | 1998 - 1998 | Período | 1975-2000 |
| Fecha | 1998-01-01 00:00:00 - 1998-12-31 00:00:00 | Record Type | survey |
| Record Type | survey | ||
| Seasonal | not specified | Método | |
| Observaciones | Census was conducted in 1998, dates are assumed. Population size refers to breeding pairs. | ||