| Country | Spain | Ecosystem | |
| Locality | Rio de Vigo | Depth | 1 m |
| Introduced | Year Intro. | ||
| Life Stage | not specified | unsexed | veliger |
| Quantitative | 20 | Unit | numbers/m^3 |
| Semi Quantitative | <100 | Unit | numbers/m^3 |
| Qualitative | abundant | ||
| Year | 1992 - 1993 | Period | 1975-2000 |
| Date | 1993-01-01 00:00:00 - 1993-06-30 00:00:00 | Record Type | survey |
| Record Type | survey | ||
| Seasonal | Method | volumetric | |
| Remarks | Sampling was conducted in 2 off shore localities within Rio de Vigo with depths of 15-20 m and done by pumping 50 l of water from the surface to a depth of 1 m. Survey was from January 1992 to June 1993 (dates assumed) | ||