Swannington Beck

13 fish species have been recorded at 8 locations along the Swannington Beck.

Records updated10 August 2026Most recent survey: 2015
Fish species
13
Places surveyed
8
Survey visits
19
Records span
2003–2015

Local EA evidence

Where fish were recorded

8 of 8 places shown

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.

FishSitesMost recentFish countedMeasured lengthMeasured weight
3-spined sticklebackGasterosteus aculeatus8201589Median: 3.7 cm89 fish measuredLargest measured 3-spined stickleback: 6.6 cm—
BullheadCottus gobio52015552Median: 5.4 cm552 fish measuredLargest measured bullhead: 10.7 cm—
10-spined sticklebackPungitius pungitius5201519Median: 4.3 cm19 fish measuredLargest measured 10-spined stickleback: 5.2 cm—
Brown / sea troutSalmo trutta4201590Median: 13.3 cm90 fish measuredLargest measured brown / sea trout: 30.4 cmMedian: 2.2 oz (0.061 kg)14 fish weighedLargest measured: 9.9 oz (0.28 kg)
MinnowPhoxinus phoxinus42015994Median: 5.7 cm645 fish measuredLargest measured minnow: 9.4 cm—
ChubLeuciscus cephalus3201512Median: 13.7 cm12 fish measuredLargest measured chub: 28.1 cm—
Stone loachBarbatula barbatula3201416Median: 9.9 cm16 fish measuredLargest measured stone loach: 11.8 cm—
GudgeonGobio gobio320136Median: 12.4 cm6 fish measuredLargest measured gudgeon: 13.4 cm—
DaceLeuciscus leuciscus2201512Median: 9.5 cm12 fish measuredLargest measured dace: 10.9 cm—
European eelAnguilla anguilla220133Median: 38.5 cm2 fish measuredLargest measured european eel: 47 cmRecorded weight: 3.5 oz (0.1 kg)1 fish weighed
Brook lampreyLampetra planeri1201576Median: 13.9 cm45 fish measuredLargest measured brook lamprey: 15.8 cm—
PerchPerca fluviatilis1200319Median: 6.9 cm19 fish measuredLargest measured perch: 7.4 cm—
RoachRutilus rutilus120141Recorded length: 5.2 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 Swannington Beck. 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 →