Mad Brook
8 fish species have been recorded at 2 locations along the Mad Brook.
- Fish species
- 8
- Places surveyed
- 2
- Survey visits
- 4
- Records span
- 1998–2024
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 |
|---|---|---|---|---|---|
| 3-spined sticklebackGasterosteus aculeatus | 2 | 2024 | — | — | — |
| European eelAnguilla anguilla | 2 | 2013 | 4 | Median: 33 cm4 fish measuredLargest measured european eel: 45 cm | — |
| Brown / sea troutSalmo trutta | 1 | 2024 | 7 | Median: 16 cm7 fish measuredLargest measured brown / sea trout: 25.4 cm | — |
| Stone loachBarbatula barbatula | 1 | 2024 | — | — | — |
| GudgeonGobio gobio | 1 | 1998 | 1 | Recorded length: 10 cm1 fish measured | — |
| MinnowPhoxinus phoxinus | 1 | 2024 | — | — | — |
| PerchPerca fluviatilis | 1 | 2013 | 3 | Median: 17.9 cm3 fish measuredLargest measured perch: 18.3 cm | — |
| RoachRutilus rutilus | 1 | 2013 | 6 | Median: 3.6 cm6 fish measuredLargest measured roach: 4 cm | — |
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 Mad Brook. 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 →