RiverFish

Roach · Rutilus rutilus

Roach in the River Wharfe

Largest measured roach: 35.4 cm

The largest roach measured in Environment Agency surveys of the River Wharfe was 35.4 cm, recorded at Boston Spa on 26 July 2003.

Across 2,603 measured roach, the median measured length was 6.5 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 Wharfe.

See roach records across England →

Most recent observation20 August 2024Tadcaster post 2006 · 188 fish
Largest measured roach
35.4 cm
Median length
6.5 cm
Fish measured
2,603
Survey locations
15

Individual EA measurements

Largest measured roach

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

LengthSurvey dateSurvey locationSurvey ID
35.4 cm26 Jul 2003Boston Spa78317
35 cm18 Jul 2000Boston Spa110715
34.7 cm18 Jul 2002Boston Spa73194
34.4 cm3 Aug 1999Boston Spa110654
33.8 cm18 Jul 2002Boston Spa73194
30.4 cm15 Aug 1996Knotford110389
29.7 cm15 Aug 1996Knotford110389
29.2 cm15 Aug 1996Knotford110389
29.2 cm24 Jul 1996Tadcaster pre 2006110436
27.2 cm15 Aug 1996Knotford110389

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

Explore the river

Where roach were found

Each point marks a survey location with at least one roach 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 roach
Tadcaster post 20069 Aug 200620 Aug 20244
Boston Spa - Fry Survey24 Sept 198512 Aug 202419
Ulleskelf25 Jul 199616 Jul 201414
Pool Mill27 Jun 19968 Aug 20079
Knotford15 Aug 19968 Aug 20079
Castley18 Jul 19967 Aug 20079
Tadcaster pre 200624 Jul 199630 Jun 20058
Wetherby Grange12 Aug 199728 Jun 20058
Ryther20 Jul 200420 Jul 20041
Boston Spa19 Jul 199626 Jul 20037
Tadcaster - Fry Survey18 Sept 200118 Sept 20011
Nunnery7 Aug 19966 Aug 19994
U/s Boston Spa Weir16 Sept 199616 Sept 19983
Smaws Ings16 Aug 199616 Sept 19983
Collingham26 Jul 199613 Aug 19983

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

1985–2024

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 2,603 measured fish were spread across different length ranges.

Smallest
1.8 cm
Lower quarter
4.2 cm
Median
6.5 cm
Upper quarter
9.9 cm
Largest
35.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

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 Brown / sea trout European eel Chub

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 →