North Stream
10 fish species have been recorded at 4 locations along the North Stream.
- Fish species
- 10
- Places surveyed
- 4
- Survey visits
- 19
- Records span
- 2002–2025
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 |
|---|---|---|---|---|---|
| Brown / sea troutSalmo trutta | 4 | 2025 | 480 | Median: 11.3 cm480 fish measuredLargest measured brown / sea trout: 44.8 cm | Median: 0.6 oz (0.016 kg)29 fish weighedLargest measured: 4.4 oz (0.125 kg) |
| Atlantic salmonSalmo salar | 4 | 2017 | 681 | Median: 9.1 cm681 fish measuredLargest measured atlantic salmon: 17 cm | — |
| GraylingThymallus thymallus | 4 | 2025 | 30 | Median: 13 cm30 fish measuredLargest measured grayling: 28.5 cm | Median: 0.9 oz (0.025 kg)3 fish weighedLargest measured: 0.9 oz (0.026 kg) |
| PikeEsox lucius | 4 | 2011 | 24 | Median: 21.6 cm24 fish measuredLargest measured pike: 42.6 cm | — |
| European eelAnguilla anguilla | 3 | 2025 | 272 | Median: 35 cm272 fish measuredLargest measured european eel: 69.2 cm | — |
| BullheadCottus gobio | 3 | 2025 | 165 | Median: 5.3 cm61 fish measuredLargest measured bullhead: 7.2 cm | — |
| MinnowPhoxinus phoxinus | 3 | 2025 | 59 | Median: 6.3 cm59 fish measuredLargest measured minnow: 7.9 cm | — |
| Stone loachBarbatula barbatula | 3 | 2025 | 5 | Median: 10.6 cm5 fish measuredLargest measured stone loach: 11 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 1 | 2009 | — | — | — |
| DaceLeuciscus leuciscus | 1 | 2005 | 3 | Median: 9.8 cm3 fish measuredLargest measured dace: 9.8 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 North Stream. 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 →