| Land | United States (contiguous states) | Ecosysteem | |
| Plaats | Watchorn Marina, Long Beach / Angeles Harbors | Depth | |
| Geïntroduceerd | Year Intro. | ||
| Levensstadium | not specified | unsexed | |
| Quantitative | 3 | Unit | number |
| Semi Quantitative | Unit | ||
| Qualitative | rare | ||
| Jaar | 1997 - | Period | 1975-2000 |
| Datum | 1997-01-01 00:00:00 - 1997-12-31 00:00:00 | Record Type | |
| Record Type | |||
| Seasonal | Method | ||
| Remarks | Abundance observed in 1997, dates assumed. | ||