RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Blackwater (Reepham)

Largest measured brown / sea trout: 38.9 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Blackwater (Reepham) was 38.9 cm, recorded at Downstream Blackwater Bridge on 5 April 1990.

Across 541 measured brown / sea trout, the median measured length was 12.7 cm.

Surveyors recorded weights for 29 brown / sea trout. The median was 0.9 oz (0.025 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 River Blackwater (Reepham).

See brown / sea trout records across England →

Most recent observation17 June 2015Downstream Eades Mill · 149 fish
Largest measured brown / sea trout
38.9 cm
Median length
12.7 cm
Fish measured
541
Survey locations
2

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
38.9 cm5 Apr 1990Downstream Blackwater Bridge17140
37.5 cm5 Apr 1990Downstream Blackwater Bridge17140
36.9 cm11 May 1994Downstream Blackwater Bridge17142
35.6 cm5 Apr 1990Downstream Blackwater Bridge17140
35 cm11 May 1994Downstream Blackwater Bridge17142
34.8 cm5 Apr 1990Downstream Blackwater Bridge17140
34.2 cm5 Apr 1990Downstream Blackwater Bridge17140
33.6 cm18 Jun 1997Downstream Blackwater Bridge17144
33.4 cm11 May 1994Downstream Blackwater Bridge17142
33.2 cm18 Jun 1997Downstream Blackwater Bridge17144

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
Downstream Eades Mill4 Apr 199017 Jun 20156
Downstream Blackwater Bridge7 Mar 198618 Jun 19974

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

1986–2015

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 541 measured fish were spread across different length ranges.

Smallest
2.7 cm
Lower quarter
6.2 cm
Median
12.7 cm
Upper quarter
16.2 cm
Largest
38.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 29 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.2 oz (0.006 kg)
Lower quarter
0.5 oz (0.014 kg)
Median
0.9 oz (0.025 kg)
Upper quarter
1.4 oz (0.04 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 River Blackwater (Reepham)

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

Bullhead Stone loach Chub Minnow 3-spined stickleback Gudgeon

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 →