River Main Congresbury Yeo

13 fish species have been recorded at 10 locations along the River Main Congresbury Yeo.

Records updated10 August 2026Most recent survey: 2013
Fish species
13
Places surveyed
10
Survey visits
22
Records span
1994–2013

Local EA evidence

Where fish were recorded

10 of 10 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
European eelAnguilla anguilla102013851Median: 30 cm851 fish measuredLargest measured european eel: 76 cmMedian: 2.3 oz (0.064 kg)669 fish weighedLargest measured: 1 lb 10.6 oz (0.753 kg)
Stone loachBarbatula barbatula8201245Median: 8.4 cm45 fish measuredLargest measured stone loach: 11.8 cmMedian: 0 oz (0.001 kg)11 fish weighedLargest measured: 0.3 oz (0.009 kg)
Brown / sea troutSalmo trutta72013499Median: 20.2 cm499 fish measuredLargest measured brown / sea trout: 48.5 cmMedian: 3.5 oz (0.1 kg)387 fish weighedLargest measured: 2 lb 7.4 oz (1.12 kg)
BullheadCottus gobio62013331Median: 5.6 cm331 fish measuredLargest measured bullhead: 9.7 cmMedian: 0.1 oz (0.002 kg)45 fish weighedLargest measured: 0.4 oz (0.012 kg)
RoachRutilus rutilus5199936Median: 3.7 cm36 fish measuredLargest measured roach: 17.5 cmMedian: 0 oz (0.001 kg)25 fish weighedLargest measured: 3.6 oz (0.103 kg)
GudgeonGobio gobio4201325Median: 11.3 cm25 fish measuredLargest measured gudgeon: 16 cmMedian: 0.7 oz (0.02 kg)23 fish weighedLargest measured: 1.6 oz (0.044 kg)
PikeEsox lucius4201339Median: 15 cm39 fish measuredLargest measured pike: 72.4 cmMedian: 0.8 oz (0.024 kg)33 fish weighedLargest measured: 6 lb 15.1 oz (3.15 kg)
Rainbow troutOncorhynchus mykiss4201320Median: 37.1 cm20 fish measuredLargest measured rainbow trout: 49 cmMedian: 1 lb 7.6 oz (0.669 kg)19 fish weighedLargest measured: 1 lb 12.7 oz (0.815 kg)
3-spined sticklebackGasterosteus aculeatus3201315Median: 3.7 cm15 fish measuredLargest measured 3-spined stickleback: 5.5 cmMedian: 0 oz (0.001 kg)3 fish weighedLargest measured: 0.4 oz (0.01 kg)
Brook lampreyLampetra planeri11999———
FlounderPlatichthys flesus119945Median: 5.2 cm5 fish measuredLargest measured flounder: 7 cmMedian: 0.1 oz (0.002 kg)5 fish weighedLargest measured: 0.1 oz (0.004 kg)
MinnowPhoxinus phoxinus11999———
PerchPerca fluviatilis120131Recorded length: 8.8 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 Main Congresbury Yeo. 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 →