RiverFish

European eel · Anguilla anguilla

European eel in the River Irt

Largest measured european eel: 37.5 cm

The largest european eel measured in Environment Agency surveys of the River Irt was 37.5 cm, recorded at 1804.50 Gaterigghow. River Irt on 21 July 2003.

Across 341 measured european eel, the median measured length was 14 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Irt.

See european eel records across England →

Most recent observation17 October 20251801.50 US Brick Bridge · 7 fish
Largest measured european eel
37.5 cm
Median length
14 cm
Fish measured
341
Survey locations
19

Individual EA measurements

Largest measured european eel

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
37.5 cm21 Jul 20031804.50 Gaterigghow. River Irt78758
37.5 cm21 Jul 20031804.50 Gaterigghow. River Irt78758
35 cm22 Aug 20251806.90 DS Wastwater, River Irt178451
34 cm28 Jul 20141806.90 DS Wastwater, River Irt142026
33 cm22 Aug 20251806.90 DS Wastwater, River Irt178451
33 cm28 Jul 20141806.90 DS Wastwater, River Irt142026
32.5 cm23 Aug 20071804.50 Gaterigghow. River Irt107582
32.5 cm21 Jul 20031804.50 Gaterigghow. River Irt78758
32.5 cm21 Jul 20031804.50 Gaterigghow. River Irt78758
32 cm22 Aug 20251806.90 DS Wastwater, River Irt178451

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where european eel were found

Each point marks a survey location with at least one european eel record.

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

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyedFirst recordedLast recordedVisits finding european eel
1801.50 US Brick Bridge21 Sept 200917 Oct 20254
1806.90 DS Wastwater, River Irt28 Jul 201422 Aug 20254
1804.95 Nether Wasdale CPUE15 Sept 202325 Sept 20242
1804.55 Gaterigg CPUE25 Sept 202425 Sept 20241
1805.90 DS Wastwater CPUE16 Oct 202323 Sept 20242
1803.95 Hollins Farm CPUE15 Sept 202312 Sept 20242
1803.60 Craghouse Bridge CPUE15 Sept 202312 Sept 20242
1801.60 US Brick Bridge CPUE16 Oct 202312 Sept 20242
1802.90 Santon Bridge CPUE3 Jul 202311 Sept 20242
1801.99 Irton Hall CPUE11 Sept 202411 Sept 20241
1801.10 Holmrook CPUE3 Jul 202311 Sept 20242
1804.50 Gaterigghow. River Irt27 Sept 199423 Aug 20074
1806.00 Downstream Wastwater, River Irt3 Aug 199423 Sept 20022
1802.00 Irton Hall, River Irt28 Sept 199423 Sept 20022
1804.00 Hollins Farm, River Irt27 Sept 199427 Sept 19941
1803.00 Santon Bridge, River Irt27 Sept 199427 Sept 19941
1801.00 Holmrook, River Irt27 Sept 199427 Sept 19941
1818.50 Hawkbarrow Farm, River Irt26 Jul 199426 Jul 19941
1805.00 Near Nether Wasdale, River Irt26 Jul 199426 Jul 19941

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1994–2025

Survey records by year

Each bar shows how many survey visits recorded european eel that year.

Fish measured by surveyors

Measured length distribution

See how the 341 measured fish were spread across different length ranges.

Smallest
6 cm
Lower quarter
10 cm
Median
14 cm
Upper quarter
20 cm
Largest
37.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Irt

Compare other species with enough survey and measurement data for a detailed page.

Brown / sea trout Atlantic salmon

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →