| Fish in the MCG Reserves (Q=Quarry Lane, O=Oakham, H=Hamilton) | |||||||||
| Abundancy (Ab.) Key: D - Dominant, A - Abundant, F - Frequent, O - Occasional, R - Rare | |||||||||
| Common name | Scientific Name | Habitat | Ab. | Comment | 2020 | 2021 | 2022 | 2023 | 2024 |
| Bream | Abramis brama | Field Mill | F | Y | Y | Y | Y | ||
| Brook Lamprey | Lampetra planeri | Brook | (locally) | Y | Y | Y | Y | ||
| Bullhead | Cottus gobio | River | F | Y | Y | Y | Y | ||
| Chub | Leuciscus cephalus | River, Field Mill | F | Y | Y | Y | Y | ||
| Common Carp | Cyprinus carpio | Field Mill | O | Y | Y | Y | Y | ||
| Gudgeon | Gobio gobio | River, Field Mill | F | Y | Y | Y | Y | ||
| Perch | Perca fluviatilis | River, Field Mill | A | Y | Y | Y | Y | ||
| Pike | Esox lucius | Field Mill | F | Y | Y | Y | Y | ||
| Roach | Rutilus rutilus | River, Field Mill | A | Y | Y | Y | Y | ||
| Rudd | Scardinius erythropthalmus | Field Mill | F | Y | Y | Y | Y | ||
| Stickleback - 3 spinned | Gasterosteus aculeatus | River, Field Mill, Scrape | A | Y | Y | Y | Y | ||