River Calder
17 fish species have been recorded at 21 locations along the River Calder.
- Fish species
- 17
- Places surveyed
- 21
- Survey visits
- 71
- Records span
- 1984–2025
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 |
|---|---|---|---|---|---|
| Stone loachBarbatula barbatula | 19 | 2025 | — | — | — |
| European eelAnguilla anguilla | 18 | 2025 | 430 | Median: 30 cm321 fish measuredLargest measured european eel: 56 cm | — |
| Brown / sea troutSalmo trutta | 18 | 2025 | 594 | Median: 11.1 cm470 fish measuredLargest measured brown / sea trout: 38 cm | — |
| BullheadCottus gobio | 16 | 2025 | 13 | Median: 7.1 cm13 fish measuredLargest measured bullhead: 8.5 cm | — |
| MinnowPhoxinus phoxinus | 15 | 2025 | — | — | — |
| 3-spined sticklebackGasterosteus aculeatus | 14 | 2018 | — | — | — |
| ChubLeuciscus cephalus | 8 | 2022 | 54 | Median: 8.2 cm52 fish measuredLargest measured chub: 40.4 cm | Recorded weight: 2.6 oz (0.075 kg)1 fish weighed |
| GudgeonGobio gobio | 5 | 2018 | 134 | Median: 11.6 cm106 fish measuredLargest measured gudgeon: 15.1 cm | — |
| RoachRutilus rutilus | 4 | 1999 | 147 | Median: 17.5 cm90 fish measuredLargest measured roach: 29 cm | Recorded weight: 2.3 oz (0.065 kg)1 fish weighed |
| PerchPerca fluviatilis | 4 | 2023 | 10 | Median: 12 cm5 fish measuredLargest measured perch: 15.2 cm | — |
| GraylingThymallus thymallus | 3 | 2025 | 53 | Median: 11.5 cm53 fish measuredLargest measured grayling: 32.5 cm | — |
| Atlantic salmonSalmo salar | 3 | 2018 | 9 | — | — |
| DaceLeuciscus leuciscus | 3 | 2023 | 82 | Median: 15 cm62 fish measuredLargest measured dace: 27.2 cm | — |
| Common carpCyprinus carpio | 2 | 1985 | 4 | Median: 38.8 cm3 fish measuredLargest measured common carp: 44.9 cm | — |
| PikeEsox lucius | 1 | 1999 | 6 | Median: 53 cm3 fish measuredLargest measured pike: 57 cm | — |
| BarbelBarbus barbus | 1 | 2018 | 2 | Median: 8.8 cm2 fish measuredLargest measured barbel: 9 cm | — |
| RuffeGymnocephalus cernuus | 1 | 1999 | 1 | Recorded length: 8 cm1 fish measured | Recorded weight: 0.3 oz (0.009 kg)1 fish weighed |
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 Calder. 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 →