River Alde (Main Reaches)
15 fish species have been recorded at 5 locations along the River Alde (Main Reaches).
- Fish species
- 15
- Places surveyed
- 5
- Survey visits
- 25
- Records span
- 1987–2024
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 |
|---|---|---|---|---|---|
| European eelAnguilla anguilla | 5 | 2024 | 743 | Median: 33.5 cm39 fish measuredLargest measured european eel: 47.5 cm | Median: 2.3 oz (0.066 kg)21 fish weighedLargest measured: 6.6 oz (0.186 kg) |
| DaceLeuciscus leuciscus | 5 | 2024 | 639 | Median: 15.8 cm639 fish measuredLargest measured dace: 24.5 cm | — |
| RoachRutilus rutilus | 5 | 2024 | 666 | Median: 12 cm516 fish measuredLargest measured roach: 24.8 cm | — |
| Stone loachBarbatula barbatula | 5 | 2024 | 120 | Median: 8.3 cm120 fish measuredLargest measured stone loach: 12.9 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 4 | 2024 | 88 | Median: 4.2 cm77 fish measuredLargest measured 3-spined stickleback: 6.9 cm | — |
| FlounderPlatichthys flesus | 3 | 2010 | 140 | Median: 13.7 cm140 fish measuredLargest measured flounder: 28.2 cm | — |
| ChubLeuciscus cephalus | 3 | 2010 | 179 | Median: 15.9 cm179 fish measuredLargest measured chub: 46.5 cm | — |
| Brook lampreyLampetra planeri | 3 | 2024 | 15 | Median: 10.5 cm12 fish measuredLargest measured brook lamprey: 12.8 cm | Median: 0.1 oz (0.0027 kg)10 fish weighedLargest measured: 0.1 oz (0.004 kg) |
| Brown / sea troutSalmo trutta | 2 | 2024 | 110 | Median: 19.7 cm109 fish measuredLargest measured brown / sea trout: 50.4 cm | — |
| RuddScardinius erythrophthalmus | 2 | 2016 | 17 | Median: 13.1 cm17 fish measuredLargest measured rudd: 19.9 cm | — |
| GudgeonGobio gobio | 2 | 2003 | 51 | Median: 9.5 cm51 fish measuredLargest measured gudgeon: 13.5 cm | — |
| TenchTinca tinca | 2 | 2024 | 2 | Median: 13 cm2 fish measuredLargest measured tench: 15.7 cm | — |
| 10-spined sticklebackPungitius pungitius | 1 | 1991 | 2 | Median: 4.1 cm2 fish measuredLargest measured 10-spined stickleback: 4.4 cm | — |
| Golden goldfishCarassius auratus | 1 | 2010 | 1 | Recorded length: 11.7 cm1 fish measured | — |
| SmeltOsmerus eperlanus | 1 | 2003 | 128 | Median: 18 cm128 fish measuredLargest measured smelt: 20.9 cm | Median: 1.7 oz (0.048 kg)64 fish weighedLargest measured: 2.6 oz (0.074 kg) |
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 Alde (Main Reaches). 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 →