Brown / sea trout · Salmo trutta

Brown / sea trout in the Monks Brook

Largest measured brown / sea trout: 31.4 cm

The largest brown / sea trout measured in Environment Agency surveys of the Monks Brook was 31.4 cm, recorded at Fleming Park on 21 June 2018.

Across 115 measured brown / sea trout, the median measured length was 15.5 cm.

Surveyors recorded weights for 6 brown / sea trout. The median was 1 oz (0.029 kg) and the largest recorded weight was 7.5 oz (0.214 kg).

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

See brown / sea trout records across England →

Most recent observation16 August 2021Fleming Park · 4 fish

Largest measured brown / sea trout: 31.4 cm
Median length: 15.5 cm
Fish measured: 115
Survey locations: 5

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.

Length	Survey date	Survey location	Survey ID
31.4 cm	21 Jun 2018	Fleming Park	154086
30.4 cm	21 Jun 2018	Fleming Park	154086
30.3 cm	21 Jun 2018	Fleming Park	154086
29.8 cm	21 Jun 2018	Fleming Park	154086
29.3 cm	21 Jun 2018	Fleming Park	154086
29 cm	21 Jun 2018	Fleming Park	154086
28.9 cm	21 Jun 2018	Fleming Park	154086
28.9 cm	21 Jun 2018	Fleming Park	154086
28.7 cm	21 Jun 2018	Fleming Park	154086
28.3 cm	21 Jun 2018	Fleming Park	154086

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 surveyed	First recorded	Last recorded	Visits finding brown / sea trout
Fleming Park	20 Jun 2012	16 Aug 2021	3
Flexford Nature Reserve	3 Sept 2002	21 Jun 2018	2
Stoneham	7 Aug 2014	7 Aug 2014	1
Chandler's Ford	20 Jun 2012	20 Jun 2012	1
Mead Court	18 Sept 2007	18 Sept 2007	1

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

2002–2021

Survey records by year

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

102

003

004

005

006

107

008

009

010

011

212

013

114

015

016

017

218

019

020

121

Fish measured by surveyors

Measured length distribution

See how the 115 measured fish were spread across different length ranges.

Smallest: 4.8 cm
Lower quarter: 8.6 cm
Median: 15.5 cm
Upper quarter: 24.2 cm
Largest: 31.4 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 6 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.004 kg)
Lower quarter: 0.4 oz (0.0105 kg)
Median: 1 oz (0.029 kg)
Upper quarter: 1.9 oz (0.0528 kg)
Heaviest: 7.5 oz (0.214 kg)

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

More fish in this river

Explore the Monks Brook

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

European eel

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 →