| Paese | Russian Federation | Ecosistema | White Sea |
| Località | Gorely Island | Depth | 8 m |
| Introdotto | Year Intro. | ||
| Stadio vitale | adult | unsexed | |
| Quantitative | 75.3 | Unit | numbers/m^2 |
| Semi Quantitative | <100 | Unit | numbers/m^2 |
| Qualitative | common | ||
| Anno | 1989 - 1990 | Period | 1975-2000 |
| Data | 1989-12-15 00:00:00 - 1990-01-15 00:00:00 | Record Type | survey |
| Record Type | survey | ||
| Seasonal | yes | Method | quadrats |
| Remarks | Quantitative values were estimated from a figure using WebPlotDigitizer. Samples were taken at each station through a hole in the ice, by use of a Petersen grab. Sampling dates are estimated, described in the study as late December to early January. | ||