Rainbow trout · Oncorhynchus mykiss

Rainbow trout in the North Brook

Largest measured rainbow trout: 37 cm

The largest rainbow trout measured in Environment Agency surveys of the North Brook was 37 cm, recorded at North Brook on 26 June 2013.

Across 7 measured rainbow trout, the median measured length was 25.1 cm.

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

See rainbow trout records across England →

Most recent observation26 June 2013North Brook · 4 fish

Largest measured rainbow trout: 37 cm
Median length: 25.1 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	26 Jun 2013	North Brook	139738
33.6 cm	26 Jun 2013	North Brook	139738
27.1 cm	26 Jun 2013	North Brook	139738
25.1 cm	26 Jun 2013	North Brook	139738
22.5 cm	8 Mar 1993	Downstream Empingham	54512
19.5 cm	19 Mar 1996	Downstream Empingham	54524
16.5 cm	8 Mar 1993	Downstream Horn Mill	54511

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
North Brook	26 Jun 2013	26 Jun 2013	1
Downstream Empingham	8 Mar 1993	19 Mar 1996	2
Downstream Horn Mill	8 Mar 1993	8 Mar 1993	1

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

1993–2013

Survey records by year

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

293

094

095

196

097

098

099

000

001

002

003

004

005

006

007

008

009

010

011

012

113

Fish measured by surveyors

Measured length distribution

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

Smallest: 16.5 cm
Lower quarter: 21 cm
Median: 25.1 cm
Upper quarter: 30.4 cm
Largest: 37 cm

100–199 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the North Brook

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

Brown / sea trout European eel 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 →