RiverFish

Rainbow trout · Oncorhynchus mykiss

Rainbow trout in the Costa Beck

Largest measured rainbow trout: 39.4 cm

The largest rainbow trout measured in Environment Agency surveys of the Costa Beck was 39.4 cm, recorded at Costa beck at Sleightholme Fm on 22 July 2006.

Across 41 measured rainbow trout, the median measured length was 22.1 cm.

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

See rainbow trout records across England →

Most recent observation27 September 2023Costa beck at Gatehouses · 6 fish
Largest measured rainbow trout
39.4 cm
Median length
22.1 cm
Fish measured
41
Survey locations
6

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
39.4 cm22 Jul 2006Costa beck at Sleightholme Fm102496
37.2 cm22 Jun 2006Costa beck at Gatehouses102494
35 cm25 Sept 1997Costa Beck d/s Pickering Beck109969
34.3 cm25 Sept 1997Costa Beck Upstream Pickering Beck DERBT107109965
33.2 cm13 Sept 2002Costa Beck Upstream Pickering Beck DERBT10772214
32.2 cm25 Sept 1997Costa Beck Upstream Pickering Beck DERBT107109965
31.5 cm25 Sept 1997Costa Beck d/s Pickering Beck109969
31.2 cm25 Sept 1997Costa Beck Upstream Pickering Beck DERBT107109965
30.1 cm4 Sept 2006Costa Beck Upstream Pickering Beck DERBT107106848
30.1 cm22 Jun 2006Costa beck at High Costa mill102492

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
Costa beck at Gatehouses22 Jun 200627 Sept 20232
Oxfolds beck31 Aug 201218 Aug 20182
Costa Beck Upstream Pickering Beck DERBT10725 Sept 199720 Oct 20114
Costa beck at Sleightholme Fm22 Jul 200622 Jul 20061
Costa beck at High Costa mill22 Jun 200622 Jun 20061
Costa Beck d/s Pickering Beck25 Sept 199725 Sept 19971

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

1997–2023

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 41 measured fish were spread across different length ranges.

Smallest
9.4 cm
Lower quarter
19.1 cm
Median
22.1 cm
Upper quarter
29.5 cm
Largest
39.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Costa Beck

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

Bullhead Brown / sea trout Grayling Minnow 3-spined stickleback Stone loach

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 →