RiverFish

Grayling · Thymallus thymallus

Grayling in the River Wear

Largest measured grayling: 33.1 cm

The largest grayling measured in Environment Agency surveys of the River Wear was 33.1 cm, recorded at River Wear at Bishop Auckland on 24 June 2002.

Across 188 measured grayling, the median measured length was 11.7 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 Wear.

See grayling records across England →

Most recent observation4 September 2025River Wear at Durham · 2 fish
Largest measured grayling
33.1 cm
Median length
11.7 cm
Fish measured
188
Survey locations
21

Individual EA measurements

Largest measured grayling

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

LengthSurvey dateSurvey locationSurvey ID
33.1 cm24 Jun 2002River Wear at Bishop Auckland72939
32.2 cm24 Jun 2003River Wear at Jubilee Bridge78223
32.2 cm28 Aug 2001River Wear at Bishop Auckland23605
32.1 cm28 Aug 2001River Wear at Bishop Auckland23605
32 cm19 Aug 2009River Browney at Bear Park119293
31.8 cm22 Aug 2013River Wear at Escomb #2138073
31.4 cm28 Aug 2001River Wear at Bishop Auckland23605
31.3 cm28 Aug 2001River Wear at Bishop Auckland23605
31.3 cm28 Aug 2001River Wear at Bishop Auckland23605
31.2 cm28 Aug 2001River Wear at Bishop Auckland23605

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

Explore the river

Where grayling were found

Each point marks a survey location with at least one grayling 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 grayling
River Wear at Durham21 Aug 20134 Sept 20252
River Wear at Jubilee Bridge24 Jun 20033 Sept 20252
River Wear at Gaunless Conf.8 Oct 20243 Sept 20252
River Wear at Escomb #222 Aug 20132 Sept 20252
River Wear at Escomb2 Sept 20252 Sept 20251
River Wear at Low Harperley1 Sept 20251 Sept 20251
River Wear at Finchale Priory (c)14 Oct 202414 Oct 20241
River Wear at Witton Bridge8 Oct 20248 Oct 20241
River Browney at Holliday Park11 Oct 202311 Oct 20231
River Wear at The Batts12 Jul 201729 Jun 20232
River Wear at Chester-le-street Sewage Works20 Aug 201320 Aug 20131
River Wear at Finchale Priory30 Sept 200930 Sept 20091
River Browney at Bear Park19 Aug 200919 Aug 20091
River Wear at Wadsworth (c)22 Jun 200522 Jun 20051
River Browney at Honest Lawyer Hotel (c)6 Jun 20056 Jun 20051
River Browney at Burnigill Farm (c)6 Jun 20056 Jun 20051
River Wear at Bishop Auckland28 Aug 200124 Jun 20033
River Wear at Springwood2 Jul 20022 Jul 20021
River Wear at Kepier farm26 Jun 200226 Jun 20021
River Wear at Finchale Abbey14 Aug 200126 Jun 20022
River Wear at Harbour House Farm25 Jun 200225 Jun 20021

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

2001–2025

Survey records by year

Each bar shows how many survey visits recorded grayling that year.

Fish measured by surveyors

Measured length distribution

See how the 188 measured fish were spread across different length ranges.

Smallest
5.1 cm
Lower quarter
9.9 cm
Median
11.7 cm
Upper quarter
21.1 cm
Largest
33.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wear

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

Brown / sea trout Stone loach Bullhead Minnow Atlantic salmon European eel

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 →