Division Biological Quality Element Fish fauna
United Kingdom
| Country | National classification methods | Ecological Quality Ratios | |
|---|---|---|---|
| High-good boundary | Good-moderate boundary | ||
| France | ELFI (European Lake Fish Index): Indice Ichtyofaune Lacustre (IIL) | 0,73 | 0,49 |
| Greece | GLFI — Greek Lake Fish Index | 0,8 | 0,6 |
| Italy | Lake Fish Index (LFI) | 0,82 | 0,64 |