River Itchen
12 fish species have been recorded at 7 locations along the River Itchen.
- Fish species
- 12
- Places surveyed
- 7
- Survey visits
- 23
- Records span
- 1986–2023
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 |
|---|---|---|---|---|---|
| PikeEsox lucius | 7 | 2018 | 108 | Median: 27.3 cm108 fish measuredLargest measured pike: 53.2 cm | — |
| Stone loachBarbatula barbatula | 7 | 2023 | 70 | Median: 7.8 cm65 fish measuredLargest measured stone loach: 10.5 cm | — |
| BullheadCottus gobio | 7 | 2023 | 474 | Median: 5.6 cm148 fish measuredLargest measured bullhead: 10.2 cm | — |
| MinnowPhoxinus phoxinus | 6 | 2023 | 679 | Median: 5 cm97 fish measuredLargest measured minnow: 8 cm | — |
| DaceLeuciscus leuciscus | 4 | 2023 | 380 | Median: 12.4 cm369 fish measuredLargest measured dace: 26.6 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 4 | 2023 | 3,025 | Median: 3.1 cm24 fish measuredLargest measured 3-spined stickleback: 4.5 cm | — |
| ChubLeuciscus cephalus | 3 | 2023 | 147 | Median: 23.9 cm147 fish measuredLargest measured chub: 46.4 cm | — |
| RoachRutilus rutilus | 3 | 2023 | 704 | Median: 9.5 cm625 fish measuredLargest measured roach: 32.5 cm | — |
| GudgeonGobio gobio | 3 | 2023 | 230 | Median: 10 cm212 fish measuredLargest measured gudgeon: 15.3 cm | — |
| PerchPerca fluviatilis | 3 | 2023 | 20 | Median: 20.5 cm20 fish measuredLargest measured perch: 28 cm | — |
| European eelAnguilla anguilla | 2 | 2019 | 18 | Median: 55.6 cm18 fish measuredLargest measured european eel: 76.2 cm | — |
| RuddScardinius erythrophthalmus | 1 | 2019 | 1 | Recorded length: 7.2 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 Itchen. 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 →