Gudgeon · Gobio gobio

Gudgeon in the River Market Rasen Reach

Largest measured gudgeon: 15.8 cm

The largest gudgeon measured in Environment Agency surveys of the River Market Rasen Reach was 15.8 cm, recorded at R. Rase at Middle Rasen on 7 July 1989.

Across 738 measured gudgeon, the median measured length was 9.3 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 Market Rasen Reach.

See gudgeon records across England →

Most recent observation20 April 2015Pilford Bridge · 13 fish

Largest measured gudgeon: 15.8 cm
Median length: 9.3 cm
Fish measured: 738
Survey locations: 5

Individual EA measurements

Largest measured gudgeon

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
15.8 cm	7 Jul 1989	R. Rase at Middle Rasen	57530
15.3 cm	7 Jul 1989	R. Rase at Middle Rasen	57530
15.1 cm	7 Jul 1989	R. Rase at Middle Rasen	57530
15 cm	20 Aug 1986	Bishops Bridge (Rase)	57503
14.7 cm	22 Aug 1986	Pilford Bridge	57505
14.6 cm	7 Jul 1989	R. Rase at Middle Rasen	57530
14.5 cm	20 Aug 1986	Bishops Bridge (Rase)	57503
14.4 cm	7 Jul 1989	R. Rase at Middle Rasen	57530
14.4 cm	7 Jul 1989	R. Rase at Middle Rasen	57530
14.4 cm	22 Aug 1986	Pilford Bridge	57505

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

Explore the river

Where gudgeon were found

Each point marks a survey location with at least one gudgeon 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 gudgeon
West Rasen	20 Aug 1986	20 Apr 2015	6
Pilford Bridge	22 Aug 1986	20 Apr 2015	6
R. Rase at Middle Rasen	7 Jul 1989	4 Oct 2007	3
Bishops Bridge (Rase)	20 Aug 1986	16 Jul 2007	5
Upstream Bishops Bridge	21 Aug 1986	30 Jul 1996	4

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

1986–2015

Survey records by year

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

486

087

088

589

090

091

092

593

094

095

496

097

098

099

000

001

002

003

004

005

006

207

008

009

010

011

012

013

214

215

Fish measured by surveyors

Measured length distribution

See how the 738 measured fish were spread across different length ranges.

Smallest: 3.2 cm
Lower quarter: 7.9 cm
Median: 9.4 cm
Upper quarter: 10.6 cm
Largest: 15.8 cm

0–99 mm

453

100–199 mm

285

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Market Rasen Reach

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

Stone loach 3-spined stickleback Dace European eel Pike Perch

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 →