RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the Flasby Beck

Largest measured brown / sea trout: 27.3 cm

The largest brown / sea trout measured in Environment Agency surveys of the Flasby Beck was 27.3 cm, recorded at Flasby on 20 September 2019.

Across 148 measured brown / sea trout, the median measured length was 8.7 cm.

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

See brown / sea trout records across England →

Most recent observation20 September 2019Flasby · 11 fish
Largest measured brown / sea trout
27.3 cm
Median length
8.7 cm
Fish measured
148
Survey locations
3

Individual EA measurements

Largest measured brown / sea trout

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

LengthSurvey dateSurvey locationSurvey ID
27.3 cm20 Sept 2019Flasby155553
25.9 cm28 Aug 2008u/s Hetton Bridge121131
24.2 cm28 Aug 2007u/s Hetton Bridge121122
24.1 cm28 Aug 2007u/s Hetton Bridge121122
23.8 cm27 Aug 2009u/s Hetton Bridge121138
23.5 cm15 Aug 2002Flasby72070
22.8 cm28 Aug 2008u/s Hetton Bridge121131
21.8 cm27 Aug 2009u/s Hetton Bridge121138
21.1 cm20 Sept 2019Flasby155553
21 cm15 Aug 2002Flasby72070

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

Explore the river

Where brown / sea trout were found

Each point marks a survey location with at least one brown / sea trout 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 brown / sea trout
Flasby15 Aug 200220 Sept 20192
u/s Eshton Beck Confluence24 Aug 200628 Aug 20145
u/s Hetton Bridge24 Aug 200627 Aug 20094

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

2002–2019

Survey records by year

Each bar shows how many survey visits recorded brown / sea trout that year.

Fish measured by surveyors

Measured length distribution

See how the 148 measured fish were spread across different length ranges.

Smallest
5.5 cm
Lower quarter
7.5 cm
Median
8.7 cm
Upper quarter
13.5 cm
Largest
27.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Flasby Beck

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

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 →