Roach · Rutilus rutilus

Roach in the Well Creek

Largest measured roach: 33.4 cm

The largest roach measured in Environment Agency surveys of the Well Creek was 33.4 cm, recorded at Marmont Priory on 23 May 2017.

Across 14,477 measured roach, the median measured length was 8.8 cm.

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

See roach records across England →

Most recent observation14 May 2026Salters Lode · 19 fish

Largest measured roach: 33.4 cm
Median length: 8.8 cm
Fish measured: 14,477
Survey locations: 7

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
33.4 cm	23 May 2017	Marmont Priory	150511
32.8 cm	31 May 1994	Salters Lode	29742
30.3 cm	23 May 1994	Marmont Priory	29748
27.5 cm	20 Jun 2006	Salters Lode	99663
27.2 cm	23 May 2017	Marmont Priory	150511
26.5 cm	24 May 2017	Outwell Common	150470
25.3 cm	7 Jun 1991	Salters Lode	29735
25 cm	16 May 2023	Marmont Priory	162332
25 cm	25 May 2017	Salters Lode	150463
24.2 cm	24 May 2017	Outwell Common	150470

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
Salters Lode	3 May 1989	14 May 2026	10
Marmont Priory	26 Apr 1989	12 May 2026	7
Outwell Common	5 May 1989	23 May 2023	6
Upwell	25 Apr 1989	17 May 2023	4
Aqueduct Bridge	27 Apr 1989	21 Jun 2006	5
Boundry Farm	5 Jun 1991	1 Jun 1994	2
Walsingham Fen	8 May 1989	25 May 1994	3

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

1989–2026

Survey records by year

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

689

090

791

092

093

794

095

096

097

098

499

000

001

002

003

004

005

206

107

008

009

010

111

012

013

014

015

016

317

018

019

020

021

022

423

024

025

226

Fish measured by surveyors

Measured length distribution

See how the 14,477 measured fish were spread across different length ranges.

Smallest: 2.8 cm
Lower quarter: 7.3 cm
Median: 8.8 cm
Upper quarter: 11.3 cm
Largest: 33.4 cm

0–99 mm

9058

100–199 mm

5329

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Well Creek

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

Common bream Perch Pike Silver bream Ruffe Zander

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 →