| Land | Portugal | Ökosysteme | Atlantic Ocean |
| Fundort | Óbidos Lagoon | Depth | |
| Exoten | Year Intro. | ||
| Lebensstadium | not specified | unsexed | |
| Quantitative | 660 | Unit | number |
| Semi Quantitative | 100-1000 | Unit | number |
| Qualitative | very common | ||
| Jahr | 1993 - 1994 | Period | 1975-2000 |
| Datum | 01/01/93 - 31/12/94 | Record Type | field sample |
| Record Type | field sample | ||
| Seasonal | no | Method | |
| Remarks | Monthly sampling between January 1993 and December 1994, using a 50-m long beach seine with 1-m height and a mesh size of 10 mm. | ||