Brown / sea trout · Salmo trutta

Brown / sea trout in the River Blackwater

Largest measured brown / sea trout: 57.1 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Blackwater was 57.1 cm, recorded at Rye Mill on 21 September 2023.

Across 46 measured brown / sea trout, the median measured length was 23.3 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 Blackwater.

See brown / sea trout records across England →

Most recent observation8 November 2023Dorewards Hall · 1 fish

Largest measured brown / sea trout: 57.1 cm
Median length: 23.3 cm
Fish measured: 46
Survey locations: 11

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
57.1 cm	21 Sept 2023	Rye Mill	164414
54.2 cm	21 Sept 2023	Rye Mill	164414
51.3 cm	14 Sept 2017	Bradwell Hall	152430
50.5 cm	13 Sept 2005	West Mill	86453
48 cm	13 Sept 2005	West Mill	86453
45.9 cm	13 Sept 2005	West Mill	86453
44.8 cm	19 Sept 2023	Bradwell Hall	164410
44 cm	24 Sept 2002	West Mill	65940
43 cm	24 Sept 2002	West Mill	65940
42 cm	24 Sept 2002	West Mill	65940

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
Dorewards Hall	8 Nov 2023	8 Nov 2023	1
Greys Mill	4 Oct 2023	4 Oct 2023	1
Kelvedon Coalyard	23 Sept 2023	23 Sept 2023	1
Rye Mill	21 Sept 2023	21 Sept 2023	1
Bradwell Hall	27 Sept 2002	19 Sept 2023	4
Coggeshall	5 Sept 2001	19 Sept 2017	2
Stisted FGS	13 Jul 1984	4 Sept 2008	4
West Mill	24 Sept 2002	13 Sept 2005	2
Braxted FGS	3 Oct 2002	3 Oct 2002	1
Lyons Hall (River Blackwater)	13 Aug 1996	17 Sept 1999	2
Feeringbury Hall	12 Apr 1990	12 Apr 1990	1

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

1984–2023

Survey records by year

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

184

085

086

087

088

089

190

091

092

193

094

095

196

097

098

299

000

101

302

003

004

205

006

007

108

009

010

011

012

013

014

015

016

217

018

019

020

021

022

523

Fish measured by surveyors

Measured length distribution

See how the 46 measured fish were spread across different length ranges.

Smallest: 7.1 cm
Lower quarter: 11.1 cm
Median: 23.3 cm
Upper quarter: 39.9 cm
Largest: 57.1 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Blackwater

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

Roach Chub Gudgeon European eel Perch Dace

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 →