RiverFish

Minnow · Phoxinus phoxinus

Minnow in the River Derwent (Yorkshire)

Largest measured minnow: 10.6 cm

The largest minnow measured in Environment Agency surveys of the River Derwent (Yorkshire) was 10.6 cm, recorded at Buttercrambe DERCORS9 on 28 June 2018.

Across 4,974 measured minnow, the median measured length was 3.2 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Derwent (Yorkshire).

See minnow records across England →

Most recent observation11 August 2025Yedingham - Fry Survey · 17 fish
Largest measured minnow
10.6 cm
Median length
3.2 cm
Fish measured
4,974
Survey locations
21

Individual EA measurements

Largest measured minnow

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

LengthSurvey dateSurvey locationSurvey ID
10.6 cm28 Jun 2018Buttercrambe DERCORS9152766
8.7 cm28 Jun 2018Buttercrambe DERCORS9152766
8.7 cm15 Jul 2015Stamford Bridge DERCORS10145493
8.3 cm14 Jul 2015Malton DERCORS5145492
8.1 cm28 Jun 2018Buttercrambe DERCORS9152766
7.9 cm14 Jul 2015Yedingham DERCORS4145491
7.9 cm14 Jul 2015Yedingham DERCORS4145491
7.8 cm14 Jul 2015Yedingham DERCORS4145491
7.7 cm20 Sept 2018Downstream Weir Head DERBT3153400
7.7 cm15 Jul 2015Stamford Bridge DERCORS10145493

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

Explore the river

Where minnow were found

Each point marks a survey location with at least one minnow 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 minnow
Yedingham - Fry Survey18 Sept 198411 Aug 202529
Bubwith - Fry Survey18 Sept 198419 Aug 202433
Yedingham DERCORS45 Sept 200131 Jul 202412
Sutton Upon Derwent DERCORS1826 Sept 199730 Jul 202413
Stamford Bridge DERCORS1024 Apr 199529 Jul 202416
Downstream West Ayton DERBT630 Aug 200014 Aug 20194
Downstream Weir Head DERBT324 Sept 200120 Sept 20187
Downstream Forge Valley gauging weir. DERBT5.24 Sept 200120 Sept 20185
Malton DERCORS55 Sept 200116 Jul 201812
Kirkham Abbey DERCORS77 Sept 200116 Jul 201812
Buttercrambe DERCORS914 Sept 200128 Jun 201810
Howsham DERCORS812 Sept 200116 Jul 201510
Darrells Low Fm17 Sept 201217 Sept 20121
Langdale end bridge13 Sept 201213 Sept 20121
Downstream Wrench Green Bridge.DERBT225 Jun 200213 Sept 20122
Wheldrake Ings DERCORS1917 Sept 200119 Oct 20086
Low Hutton DERCORS618 Sept 199721 Sept 20056
Breighton DERCORS2017 Sept 200110 Sept 20033
Upstream Wrench Green Bridge25 Jun 200225 Jun 20021
Yedingham Fish Haven - Fry Survey18 Sept 198920 Sept 19999
Low Marishes Fish Haven - Fry Survey18 Sept 198918 Sept 19956

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

1984–2025

Survey records by year

Each bar shows how many survey visits recorded minnow that year.

Fish measured by surveyors

Measured length distribution

See how the 4,974 measured fish were spread across different length ranges.

Smallest
1.1 cm
Lower quarter
2.7 cm
Median
3.2 cm
Upper quarter
4.1 cm
Largest
10.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Derwent (Yorkshire)

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

Bullhead Stone loach Dace European eel 3-spined stickleback Roach

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 →