Rainbow trout · Oncorhynchus mykiss

Rainbow trout in the Bow Brook

Largest measured rainbow trout: 37 cm

The largest rainbow trout measured in Environment Agency surveys of the Bow Brook was 37 cm, recorded at Elcocks Brook on 15 June 1994.

Across 7 measured rainbow trout, the median measured length was 34.1 cm.

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

See rainbow trout records across England →

Most recent observation19 May 1999Elcocks Brook · 1 fish

Largest measured rainbow trout: 37 cm
Median length: 34.1 cm
Fish measured: 7
Survey locations: 3

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.

Length	Survey date	Survey location	Survey ID
37 cm	15 Jun 1994	Elcocks Brook	52030
37 cm	15 Jun 1990	Elcocks Brook	77380
36.2 cm	19 May 1999	Elcocks Brook	52004
34.1 cm	15 Jun 1994	Elcocks Brook	52030
34.1 cm	15 Jun 1990	Elcocks Brook	77380
26.5 cm	13 Jun 1994	Priest Bridge	77377
23 cm	25 Jul 1990	Old Yarr Bridge	55635

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 surveyed	First recorded	Last recorded	Visits finding rainbow trout
Elcocks Brook	15 Jun 1990	19 May 1999	3
Priest Bridge	13 Jun 1994	13 Jun 1994	1
Old Yarr Bridge	25 Jul 1990	25 Jul 1990	1

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

1990–1999

Survey records by year

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

290

091

092

093

294

095

096

097

098

199

Fish measured by surveyors

Measured length distribution

See how the 7 measured fish were spread across different length ranges.

Smallest: 23 cm
Lower quarter: 30.3 cm
Median: 34.1 cm
Upper quarter: 36.6 cm
Largest: 37 cm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bow Brook

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

Stone loach Minnow European eel Roach Dace Bullhead

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 →