RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Wharfe

Largest measured brown / sea trout: 67.3 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Wharfe was 67.3 cm, recorded at Boston Spa on 26 July 2003.

Across 5,455 measured brown / sea trout, the median measured length was 18.7 cm.

Surveyors recorded weights for 3 brown / sea trout. The median was 6 lb 8.2 oz (2.96 kg) and the largest recorded weight was 9 lb 14.4 oz (4.49 kg).

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

See brown / sea trout records across England →

Most recent observation1 October 2025Starbotton · 16 fish
Largest measured brown / sea trout
67.3 cm
Median length
18.7 cm
Fish measured
5,455
Survey locations
27

Individual EA measurements

Largest measured brown / sea trout

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

LengthSurvey dateSurvey locationSurvey ID
67.3 cm26 Jul 2003Boston Spa78317
61.3 cm23 Jul 2003Tadcaster pre 200678325
57 cm22 Jul 1997Boston Spa110065
55.2 cm27 Jun 1996Pool Mill110504
54.7 cm21 Jul 2004Pool Mill81349
53.3 cm14 Aug 1998Boston Spa110289
51.7 cm30 Jul 2003Pool Mill78300
51.7 cm30 Jul 2002Tadcaster pre 200673189
51.5 cm26 Jul 2001Tadcaster pre 200625609
51.5 cm19 Jul 2001Pool Mill25651

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

Explore the river

Where brown / sea trout were found

Each point marks a survey location with at least one brown / sea trout 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 brown / sea trout
Starbotton1 Oct 20251 Oct 20251
Redmires6 Jun 20021 Oct 20253
Kettlewell30 Jun 200830 Sept 20253
Pool Mill27 Jun 199622 Aug 202418
Tadcaster post 20069 Aug 200620 Aug 20245
Harewood14 Aug 202414 Aug 20241
Netherby (discretionary only)26 Jul 201626 Jul 20161
Ilkley1 Aug 19961 Sept 20149
Appletreewick B (lower site)9 Aug 19965 Aug 20149
Linton Stepping Stones3 Aug 19964 Aug 201411
Conistone d/s14 Aug 19961 Aug 201410
Hubberholme30 Jul 201430 Jul 20141
Castley18 Jul 199624 Jun 201414
Knotford15 Aug 199623 Jun 20142
Buckden Upstream Gravel Trap5 Jun 200226 Jun 20086
Tadcaster pre 200624 Jul 199630 Jun 20058
Burley Bypass31 Jul 199614 Jul 20044
Appletreewick A9 Aug 199613 Aug 20037
Addingham8 Aug 199611 Aug 20038
Strid d/s (Bolton Abbey)6 Aug 19967 Aug 20037
Nunnery7 Aug 199628 Jul 20037
Boston Spa19 Jul 199626 Jul 20037
Cray Beck Confluence5 Jun 200212 Jun 20032
Cray Beck6 Jun 200212 Jun 20032
Collingham26 Jul 199613 Aug 19983
U/s of Lobwood Weir2 Aug 19966 Aug 19983
Ulleskelf25 Jul 199625 Jul 19961

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

1996–2025

Survey records by year

Each bar shows how many survey visits recorded brown / sea trout that year.

Fish measured by surveyors

Measured length distribution

See how the 5,455 measured fish were spread across different length ranges.

Smallest
2.4 cm
Lower quarter
12.3 cm
Median
18.7 cm
Upper quarter
25.9 cm
Largest
67.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 3 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest
2 lb 13.2 oz (1.28 kg)
Lower quarter
4 lb 10.7 oz (2.12 kg)
Median
6 lb 8.2 oz (2.96 kg)
Upper quarter
8 lb 3.3 oz (3.72 kg)
Heaviest
9 lb 14.4 oz (4.49 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Wharfe

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

Minnow Bullhead Stone loach European eel Chub Grayling

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 →