| Country | United States (contiguous states) | Ecosystem | |
| Locality | Lake Abert, Oregon | Depth | 2.5 m |
| Introduced | Year Intro. | ||
| Life Stage | adult | mixed | |
| Quantitative | 2400 | Unit | numbers/m^2 |
| Semi Quantitative | 1000-50000 | Unit | numbers/m^2 |
| Qualitative | abundant | ||
| Year | 1981 - 1981 | Period | 1975-2000 |
| Date | 1981-09-03 00:00:00 - 1981-09-03 00:00:00 | Record Type | field sample |
| Record Type | field sample | ||
| Seasonal | not specified | Method | random sampling |
| Remarks | |||