RiverFish

Rainbow trout · Oncorhynchus mykiss

Rainbow trout in the River Medway

Largest measured rainbow trout: 45.7 cm

The largest rainbow trout measured in Environment Agency surveys of the River Medway was 45.7 cm, recorded at D/s Weirwood Reservoir on 19 July 2001.

Across 11 measured rainbow trout, the median measured length was 42.5 cm.

Surveyors recorded weights for 2 rainbow trout. The median was 2 lb 0.6 oz (0.923 kg) and the largest recorded weight was 2 lb 1.1 oz (0.938 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 Medway.

See rainbow trout records across England →

Most recent observation21 August 2019D/s Weirwood Reservoir · 1 fish
Largest measured rainbow trout
45.7 cm
Median length
42.5 cm
Fish measured
11
Survey locations
1

Individual EA measurements

Largest measured rainbow trout

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
45.7 cm19 Jul 2001D/s Weirwood Reservoir22476
45.4 cm18 Aug 2010D/s Weirwood Reservoir123494
43.5 cm7 Aug 2002D/s Weirwood Reservoir66100
42.7 cm7 Aug 2002D/s Weirwood Reservoir66100
42.7 cm19 Jul 2001D/s Weirwood Reservoir22476
42.5 cm18 Aug 2010D/s Weirwood Reservoir123494
41.9 cm29 Aug 2013D/s Weirwood Reservoir138297
41 cm19 Jul 2001D/s Weirwood Reservoir22476
39 cm18 Aug 2010D/s Weirwood Reservoir123494
37.5 cm19 Jul 2001D/s Weirwood Reservoir22476

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where rainbow trout were found

Each point marks a survey location with at least one rainbow 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 rainbow trout
D/s Weirwood Reservoir19 Jul 200121 Aug 20195

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

2001–2019

Survey records by year

Each bar shows how many survey visits recorded rainbow trout that year.

Fish measured by surveyors

Measured length distribution

See how the 11 measured fish were spread across different length ranges.

Smallest
17.6 cm
Lower quarter
40 cm
Median
42.5 cm
Upper quarter
43.1 cm
Largest
45.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 2 rainbow trout. This is a subset of the measured fish and may not represent the whole population.

Lightest
2 lb 0 oz (0.908 kg)
Lower quarter
2 lb 0.3 oz (0.9155 kg)
Median
2 lb 0.6 oz (0.923 kg)
Upper quarter
2 lb 0.8 oz (0.9305 kg)
Heaviest
2 lb 1.1 oz (0.938 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 Medway

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

Chub Gudgeon Roach Perch Bleak 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 →