RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Test

Largest measured brown / sea trout: 65.2 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Test was 65.2 cm, recorded at Mottisfont Abbey, Oakley carrier on 15 July 2004.

Across 2,604 measured brown / sea trout, the median measured length was 12.6 cm.

Surveyors recorded weights for 655 brown / sea trout. The median was 4.7 oz (0.133 kg) and the largest recorded weight was 7 lb 5.7 oz (3.34 kg).

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

See brown / sea trout records across England →

Most recent observation9 October 2025Butchers Mead · 7 fish
Largest measured brown / sea trout
65.2 cm
Median length
12.6 cm
Fish measured
2,604
Survey locations
79

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
65.2 cm15 Jul 2004Mottisfont Abbey, Oakley carrier80483
63 cm4 Sept 2006Romsey War Memorial Park101358
62.7 cm15 Jul 2004Mottisfont Abbey, Oakley carrier80483
62.2 cm17 Sept 2009Longstock Mill119451
60.3 cm14 Jul 2004Stockbridge, Marsh Court80530
57.2 cm26 Aug 2004Saddlers Mill82035
55.8 cm14 Jul 2004Stockbridge, Marsh Court80530
53.7 cm14 Jul 2004Stockbridge, Marsh Court80530
52 cm24 Sept 2002Timsbury main river61524
51.8 cm14 Jul 2004Stockbridge, Marsh Court80530

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
Butchers Mead9 Oct 20259 Oct 20251
Freelands House, Wherwell17 Sept 20107 Oct 20258
Big Berm, Freelands7 Oct 20257 Oct 20251
Fullerton Old Beat25 Sept 202325 Sept 20252
Compton Islands17 Sept 202425 Sept 20252
Compton16 Jul 200425 Sept 20258
Greatbridge Railway30 Sept 200416 Sept 20258
Grayling Island23 Aug 201616 Sept 20257
Mottisfont Bittern Shallow19 Sept 202415 Sept 20252
Linhay Meads Island Meadow13 Sept 202415 Sept 20252
Linhay Meads Fishermans Meadow15 Sept 202315 Sept 20254
Kimbridge Mill Cottage16 Sept 201015 Sept 202510
Sheepbridge14 Jul 200412 Sept 202515
Moorcourt Main25 Aug 200412 Sept 20253
Machine Shallows20 Sept 202112 Sept 20255
Longstock Mill19 Oct 200712 Sept 202511
Mainstone Farm23 Sept 202011 Sept 20253
Longbridge31 Aug 201811 Sept 20253
Burnt Mill4 Sept 201811 Sept 20257
Mottisfont, Oakley Farm15 Jul 200410 Sept 20259
Horsebridge7 Jul 200410 Sept 202516
Broadwater Point14 Sept 202310 Sept 20253
Bossington House beat6 Sept 201810 Sept 20258
Mayfly4 Oct 20049 Sept 202511
Bunnies4 Oct 20049 Sept 202510
Romsey Canal18 Apr 20138 Sept 202510
Romsey War Memorial Park14 Nov 200322 Aug 202518
Compton Carrier26 Sept 20019 Jul 202515
Kimbridge House4 Sept 20184 Oct 20245
Meadowview16 Sept 202120 Sept 20233
Pittleworth28 Aug 202019 Sept 20233
Nut Walk, Pittleworth24 Jul 202019 Sept 20234
Mottisfont Abbey stocked trout removal12 May 202312 May 20231
Upper Houghton28 Sept 202016 Sept 20213
Moorcourt Carrier25 Aug 200416 Sept 20216
Upstream M2723 Sept 202023 Sept 20201
Kimbridge House 34 Sept 20184 Sept 20181
Tufton Main15 Oct 201028 Sept 20162
Tufton Carrier8 Jun 200428 Sept 20163
Timsbury Mayfly carrier7 Sept 201021 Sept 20162
Mottisfont Abbey, Oakley carrier15 Jul 200421 Sept 20163
Kimbridge: Wallace's Leat confluence20 Sept 201620 Sept 20161
Kimbridge, New stream16 Sept 201020 Sept 20162
Stockbridge, Marsh Court14 Jul 20046 Sept 20163
Fairbourne stream, Brook Farm8 Jul 20148 Jul 20141
Romsey Canal Railway Bridge18 Apr 201317 Apr 20142
Red River Carrier, Broadlands15 Aug 200814 Jun 20132
Freefolk Piscatorial5 Oct 20125 Oct 20121
Wherwell Upper17 Jul 201217 Jul 20121
Dublin Farm13 Jul 200417 Jul 20122
Leckford Carrier12 Jul 201212 Jul 20121
Chilbolton Common12 Jul 201212 Jul 20121
Overton19 Aug 20047 Jul 20122
Overton pipeline5 Jul 20125 Jul 20121
Timsbury carrier restoration site18 Oct 201118 Oct 20111
Longparish Downstream Mill Pool15 Oct 201015 Oct 20101
Longparish, Southside Carrier16 Sept 201016 Sept 20101
Freefolk26 Sept 200122 Aug 20066
Timsbury Manor Carrier24 Sept 20028 Aug 20052
Leckford Beat 134 Oct 20044 Oct 20041
Mays Island30 Sept 200430 Sept 20041
House Beat2 Sept 20042 Sept 20041
Saddlers Mill26 Aug 200426 Aug 20041
Memorial Park Main26 Aug 200426 Aug 20041
Papermill Farm24 Aug 200424 Aug 20041
Laverstoke19 Aug 200419 Aug 20041
Linhay Meads12 Aug 200412 Aug 20041
Dead End30 Jul 200430 Jul 20041
Testbourne29 Jul 200429 Jul 20041
Kimbridge main15 Jul 200415 Jul 20041
North Head14 Jul 200414 Jul 20041
Wherwell Priory13 Jul 200413 Jul 20041
Wherwell Lower13 Jul 200413 Jul 20041
Longparish, Southside Farm8 Jul 20048 Jul 20041
Dairybridge7 Jul 20047 Jul 20041
Bossington Mill7 Jul 20047 Jul 20041
Whitchurch8 Jun 20048 Jun 20041
Fish Lake29 Sept 200329 Sept 20031
Timsbury main river24 Sept 200224 Sept 20021

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

2001–2025

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 2,604 measured fish were spread across different length ranges.

Smallest
4.5 cm
Lower quarter
9.6 cm
Median
12.6 cm
Upper quarter
22.7 cm
Largest
65.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 655 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.1 oz (0.002 kg)
Lower quarter
0.6 oz (0.016 kg)
Median
4.7 oz (0.133 kg)
Upper quarter
10.8 oz (0.3055 kg)
Heaviest
7 lb 5.7 oz (3.34 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Test

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

European eel Bullhead Minnow Stone loach Grayling Atlantic salmon

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 →