Grayling · Thymallus thymallus

Grayling in the River Welland

Largest measured grayling: 44 cm

The largest grayling measured in Environment Agency surveys of the River Welland was 44 cm, recorded at Downstream Uffington on 19 April 2005.

Across 15 measured grayling, the median measured length was 21.5 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 Welland.

See grayling records across England →

Most recent observation2 May 2013Downstream Harringworth Road Bridge · 1 fish

Largest measured grayling: 44 cm
Median length: 21.5 cm
Fish measured: 15
Survey locations: 2

Individual EA measurements

Largest measured grayling

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
44 cm	19 Apr 2005	Downstream Uffington	86226
40 cm	19 Apr 2005	Downstream Uffington	86226
34 cm	19 Apr 2005	Downstream Uffington	86226
26.8 cm	2 May 2013	Downstream Harringworth Road Bridge	136109
23 cm	19 Apr 2005	Downstream Uffington	86226
22.5 cm	15 May 2006	Downstream Uffington	101161
22 cm	19 Apr 2005	Downstream Uffington	86226
21.5 cm	19 Apr 2005	Downstream Uffington	86226
21 cm	8 May 2010	Downstream Harringworth Road Bridge	121788
21 cm	15 May 2006	Downstream Uffington	101161

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

Explore the river

Where grayling were found

Each point marks a survey location with at least one grayling 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 grayling
Downstream Harringworth Road Bridge	5 May 2009	2 May 2013	3
Downstream Uffington	19 Apr 2005	18 May 2010	3

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

2005–2013

Survey records by year

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

105

106

007

008

109

210

011

012

113

Fish measured by surveyors

Measured length distribution

See how the 15 measured fish were spread across different length ranges.

Smallest: 9.7 cm
Lower quarter: 19.8 cm
Median: 21.5 cm
Upper quarter: 24.9 cm
Largest: 44 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Welland

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

Pike Dace European eel Roach Perch Gudgeon

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 →