RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Main Ottery

Largest measured brown / sea trout: 33.6 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Main Ottery was 33.6 cm, recorded at Downstream Trengune Br on 8 August 2008.

Across 1,276 measured brown / sea trout, the median measured length was 14 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 Main Ottery.

See brown / sea trout records across England →

Most recent observation8 July 2026Penrose · 5 fish
Largest measured brown / sea trout
33.6 cm
Median length
14 cm
Fish measured
1,276
Survey locations
17

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
33.6 cm8 Aug 2008Downstream Trengune Br112786
31.8 cm1 Sept 2009Penheale118716
31.4 cm7 Jul 2010Yeolm Bridge122864
30.5 cm10 Sept 2015Downstream Yeolm Bridge146359
29.8 cm21 Jun 2012Downstream Trengune Br131623
29.3 cm4 Jul 2013Downstream Trengune Br136999
28.9 cm28 Jul 2005Trengune86824
28.6 cm8 Aug 2008Downstream Trengune Br112786
28.5 cm30 Jun 2003High Wires76494
28.4 cm28 Jul 2005Trengune86824

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
Penrose31 Jul 19848 Jul 202614
Downstream Trengune Br19 Jul 200728 Jul 202513
Yeolmbridge Green2 Oct 20232 Oct 20231
High Wires1 Aug 198416 Aug 20238
Upstream Hellescott11 Aug 202311 Aug 20231
Trengune Dip30 Jun 202330 Jun 20231
Otterham Mill26 Jul 198424 May 20229
Hellescott3 Aug 198420 Jul 20217
Downstream Yeolm Bridge10 Sept 201510 Sept 20151
Yeolm Bridge30 Jul 198420 Aug 20138
Penheale31 Jul 198430 Jun 201113
Trengune2 Aug 198417 Jul 20069
Canworthy Water2 Aug 198417 Sept 20014
Braywood Farm1 Aug 198430 Aug 19963
Trevillian24 Jul 198424 Jul 19963
u/s Trengune Bridge11 Aug 199311 Aug 19931
Werrington Park30 Jul 198430 Jul 19841

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

1984–2026

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 1,276 measured fish were spread across different length ranges.

Smallest
3.2 cm
Lower quarter
7.4 cm
Median
14 cm
Upper quarter
17.5 cm
Largest
33.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Ottery

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

Atlantic salmon Bullhead Stone loach Minnow European eel Brook lamprey

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 →