RiverFish

Roach · Rutilus rutilus

Roach in the River Thurne (Trawl)

Largest measured roach: 20.8 cm

The largest roach measured in Environment Agency surveys of the River Thurne (Trawl) was 20.8 cm, recorded at Downstream Dungeon Corner (Trawling) on 18 September 1986.

Across 30 measured roach, the median measured length was 13.2 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 Thurne (Trawl).

See roach records across England →

Most recent observation22 September 1986Upstream Thurne Lion Dyke (Trawling) · 4 fish
Largest measured roach
20.8 cm
Median length
13.2 cm
Fish measured
30
Survey locations
8

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
20.8 cm18 Sept 1986Downstream Dungeon Corner (Trawling)16891
20.2 cm18 Sept 1986Downstream Potter Bridge (Trawling)16895
19.2 cm17 Sept 1986Upstream Candle Dyke (Trawling)16893
18.5 cm18 Sept 1986Downstream Dungeon Corner (Trawling)16891
18 cm17 Sept 1986Upstream Martham Ferry (Trawling)16892
17.4 cm22 Sept 1986Upstream Thurne Lion Dyke (Trawling)16898
17.1 cm18 Sept 1986Upstream Potter Bridge (Trawling)16894
16.7 cm22 Sept 1986Downstream Womack Water (Trawling)16897
16.3 cm18 Sept 1986Downstream Repps Staithe (Trawling)16896
16 cm18 Sept 1986Downstream Potter Bridge (Trawling)16895

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
Upstream Thurne Lion Dyke (Trawling)22 Sept 198622 Sept 19861
Downstream Womack Water (Trawling)22 Sept 198622 Sept 19861
Upstream Potter Bridge (Trawling)18 Sept 198618 Sept 19861
Downstream Repps Staithe (Trawling)18 Sept 198618 Sept 19861
Downstream Potter Bridge (Trawling)18 Sept 198618 Sept 19861
Downstream Dungeon Corner (Trawling)18 Sept 198618 Sept 19861
Upstream Martham Ferry (Trawling)17 Sept 198617 Sept 19861
Upstream Candle Dyke (Trawling)17 Sept 198617 Sept 19861

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

1986–1986

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 30 measured fish were spread across different length ranges.

Smallest
4.5 cm
Lower quarter
8.3 cm
Median
13.2 cm
Upper quarter
16.6 cm
Largest
20.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Thurne (Trawl)

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

Smelt Common bream Perch

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 →