Middle Level Main Drain
14 fish species have been recorded at 8 locations along the Middle Level Main Drain.
- Fish species
- 14
- Places surveyed
- 8
- Survey visits
- 38
- Records span
- 1987–2023
Local EA evidence
Where fish were recorded
Choose a point on the map to see what was recorded there.
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River conditions
Environment Agency evidence
Fish found in this river
Open a linked fish for detailed measurements, or use the map filter above to compare survey locations.
| Fish | Sites | Most recent | Fish counted | Measured length | Measured weight |
|---|---|---|---|---|---|
| Common breamAbramis brama | 8 | 2023 | 13,509 | Median: 8.8 cm2,726 fish measuredLargest measured common bream: 57.3 cm | — |
| RoachRutilus rutilus | 8 | 2023 | 11,025 | Median: 10.8 cm6,671 fish measuredLargest measured roach: 28.3 cm | — |
| RuffeGymnocephalus cernuus | 8 | 2023 | 2,088 | Median: 8.8 cm1,517 fish measuredLargest measured ruffe: 13.3 cm | — |
| Silver breamAbramis bjoerkna | 8 | 2023 | 905 | Median: 11.6 cm576 fish measuredLargest measured silver bream: 25.8 cm | — |
| PerchPerca fluviatilis | 8 | 2023 | 1,284 | Median: 8.7 cm750 fish measuredLargest measured perch: 27.3 cm | — |
| ZanderSander lucioperca | 8 | 2023 | 448 | Median: 8.3 cm436 fish measuredLargest measured zander: 80.8 cm | — |
| European eelAnguilla anguilla | 8 | 2017 | 75 | Median: 42 cm18 fish measuredLargest measured european eel: 86.6 cm | Median: 11.1 oz (0.315 kg)8 fish weighedLargest measured: 3 lb 4.9 oz (1.5 kg) |
| PikeEsox lucius | 8 | 2023 | 46 | Median: 36.3 cm43 fish measuredLargest measured pike: 89.8 cm | — |
| SmeltOsmerus eperlanus | 6 | 1987 | 71 | Median: 9.8 cm71 fish measuredLargest measured smelt: 11.8 cm | — |
| RuddScardinius erythrophthalmus | 4 | 2023 | 19 | Median: 11 cm19 fish measuredLargest measured rudd: 13.3 cm | — |
| TenchTinca tinca | 3 | 2017 | 13 | Median: 42.3 cm11 fish measuredLargest measured tench: 48 cm | — |
| BleakAlburnus alburnus | 3 | 2023 | 8 | Median: 9.3 cm5 fish measuredLargest measured bleak: 12.5 cm | — |
| FlounderPlatichthys flesus | 2 | 1999 | 4 | Median: 6.3 cm4 fish measuredLargest measured flounder: 6.8 cm | — |
| GudgeonGobio gobio | 1 | 1987 | 1 | Recorded length: 7.3 cm1 fish measured | — |
EA surveys have recorded these fish at particular sites and times. Absence from a survey is not evidence that a species is absent from the river. Every valid individual length and weight is retained, with its sample size shown.
Useful context
This page follows survey locations along the main Middle Level Main Drain. Tributaries and unrelated rivers with similar names are kept separate.
The map shows past fish records, not fishing access or a promise of what you’ll catch today.
How RiverFish handles the data →