| Land | United States (contiguous states) | Ekosystem | |
| Observationsplats | Shelter Island, San Diego Bay | Depth | |
| Införda | Year Intro. | ||
| Utvecklingsstadium | not specified | unsexed | |
| Quantitative | 0 | Unit | number |
| Semi Quantitative | Unit | ||
| Qualitative | absent | ||
| År | 1994 - | Period | 1975-2000 |
| Datum | 1994-01-01 00:00:00 - 1994-12-31 00:00:00 | Record Type | |
| Record Type | |||
| Seasonal | Metod | ||
| Anmärkningar | Abundance observed in 1994, dates assumed. | ||