Roach · Rutilus rutilus

Roach in the Market Weighton Canal

Largest measured roach: 24.2 cm

The largest roach measured in Environment Agency surveys of the Market Weighton Canal was 24.2 cm, recorded at Newport Village to M62 Bridge on 12 July 2013.

Across 408 measured roach, the median measured length was 8.9 cm.

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

See roach records across England →

Most recent observation26 September 2025Broomfleet · 3 fish

Largest measured roach: 24.2 cm
Median length: 8.9 cm
Fish measured: 408
Survey locations: 5

Individual EA measurements

Largest measured roach

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

Length	Survey date	Survey location	Survey ID
24.2 cm	12 Jul 2013	Newport Village to M62 Bridge	139677
23 cm	25 Oct 2004	Upstream M62	83038
20.3 cm	12 Jul 2013	Newport Village to M62 Bridge	139677
19.9 cm	25 Oct 2004	Broomfleet	83031
19.4 cm	25 Oct 2004	Upstream M62	83038
18.7 cm	12 Jul 2013	Newport Village to M62 Bridge	139677
18.4 cm	26 Sept 2025	Broomfleet	178951
18.1 cm	12 Jul 2013	Newport Village to M62 Bridge	139677
17.8 cm	12 Jul 2013	Newport Village to M62 Bridge	139677
17.7 cm	12 Jul 2013	Newport Village to M62 Bridge	139677

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 surveyed	First recorded	Last recorded	Visits finding roach
Broomfleet	25 Oct 2004	26 Sept 2025	4
Newport Village to M62 Bridge	12 Jul 2013	12 Jul 2013	1
Gauging Weir	22 Oct 2004	11 Jul 2013	2
Upstream M62	25 Oct 2004	25 Oct 2004	1
Upstream Foulness confluence	25 Oct 2004	25 Oct 2004	1

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

2004–2025

Survey records by year

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

404

005

006

007

008

009

110

011

012

313

014

015

016

017

018

019

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 408 measured fish were spread across different length ranges.

Smallest: 1.3 cm
Lower quarter: 6.9 cm
Median: 9 cm
Upper quarter: 12.3 cm
Largest: 24.2 cm

0–99 mm

224

100–199 mm

181

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Market Weighton Canal

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

3-spined stickleback Perch Pike European eel Bullhead Stone loach

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 →