Dalby/Thornton Beck

8 fish species have been recorded at 8 locations along the Dalby/Thornton Beck.

Records updated10 August 2026Most recent survey: 2024
Fish species
8
Places surveyed
8
Survey visits
35
Records span
1997–2024

Local EA evidence

Where fish were recorded

8 of 8 places shown

Choose a point on the map to see what was recorded there.

Check local permissions before fishing.

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
BullheadCottus gobio72024390Median: 5.6 cm298 fish measuredLargest measured bullhead: 10.7 cm—
Brown / sea troutSalmo trutta52024937Median: 10.2 cm915 fish measuredLargest measured brown / sea trout: 32.4 cm—
3-spined sticklebackGasterosteus aculeatus3202440Median: 4.4 cm39 fish measuredLargest measured 3-spined stickleback: 6.2 cm—
European eelAnguilla anguilla320213Median: 40 cm3 fish measuredLargest measured european eel: 41 cm—
Stone loachBarbatula barbatula220123Median: 5 cm3 fish measuredLargest measured stone loach: 7.5 cm—
Brook lampreyLampetra planeri220216Median: 14.3 cm6 fish measuredLargest measured brook lamprey: 15 cm—
MinnowPhoxinus phoxinus1202437Median: 6.6 cm37 fish measuredLargest measured minnow: 7.7 cm—
PikeEsox lucius120121Recorded length: 11.5 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 Dalby/Thornton 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 →