River Mermaid
8 fish species have been recorded at 5 locations along the River Mermaid.
- Fish species
- 8
- Places surveyed
- 5
- Survey visits
- 10
- Records span
- 2004–2018
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 | 4 | 2018 | 28 | Median: 4 cm28 fish measuredLargest measured 3-spined stickleback: 6.7 cm | — |
| Brown / sea troutSalmo trutta | 3 | 2018 | 83 | Median: 11.3 cm83 fish measuredLargest measured brown / sea trout: 28.1 cm | — |
| Stone loachBarbatula barbatula | 3 | 2018 | 32 | Median: 8.5 cm32 fish measuredLargest measured stone loach: 10.4 cm | — |
| GudgeonGobio gobio | 2 | 2018 | 5 | Median: 8.8 cm5 fish measuredLargest measured gudgeon: 12 cm | — |
| RoachRutilus rutilus | 2 | 2004 | 2 | Median: 14.5 cm2 fish measuredLargest measured roach: 15.3 cm | — |
| 10-spined sticklebackPungitius pungitius | 1 | 2016 | 4 | Median: 4.4 cm4 fish measuredLargest measured 10-spined stickleback: 5 cm | — |
| Brook lampreyLampetra planeri | 1 | 2016 | 5 | Median: 14.4 cm5 fish measuredLargest measured brook lamprey: 14.8 cm | — |
| DaceLeuciscus leuciscus | 1 | 2004 | 1 | Recorded length: 5.6 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 River Mermaid. 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 →