| Country | Turkey | Ecosystem | Black Sea |
| Locality | Southern Black Sea | Depth | |
| Introduced | Year Intro. | ||
| Life Stage | not specified | unsexed | |
| Quantitative | 200 | Unit | g/m^2 |
| Semi Quantitative | 100-1000 | Unit | g/m^2 |
| Qualitative | very common | ||
| Year | 1998 - 1998 | Period | 1975-2000 |
| Date | 1998-09-01 00:00:00 - 1998-09-30 00:00:00 | Record Type | field sample |
| Record Type | field sample | ||
| Seasonal | yes | Method | volumetric |
| Remarks | Biomass for September 1998 (dates assumed) was doubled (value assumed). Biomass is always lower in colder months. | ||