Division Biological Quality Element Fish fauna
United Kingdom
| Country | National classification systems | Ecological Quality Ratios | |
|---|---|---|---|
| High-good boundary | Good-moderate boundary | ||
| Italy | HFBI — Habitat Fish Bio-Indicator | 0,94 | 0,55 |
| Croatia | M-EFI — Modified Estuarine Fish Index | 0,8 | 0,6 |