RiverFish

Grayling · Thymallus thymallus

Grayling in the River Coln

Largest measured grayling: 40.5 cm

The largest grayling measured in Environment Agency surveys of the River Coln was 40.5 cm, recorded at River Coln - Coneygar Farm on 29 April 2003.

Across 173 measured grayling, the median measured length was 16.9 cm.

Surveyors recorded weights for 6 grayling. The median was 1 lb 3.1 oz (0.5405 kg) and the largest recorded weight was 1 lb 15.1 oz (0.882 kg).

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

See grayling records across England →

Most recent observation13 March 2015River Coln Netherton Bridge · 43 fish
Largest measured grayling
40.5 cm
Median length
16.9 cm
Fish measured
173
Survey locations
4

Individual EA measurements

Largest measured grayling

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

LengthSurvey dateSurvey locationSurvey ID
40.5 cm29 Apr 2003River Coln - Coneygar Farm78418
40.3 cm13 Mar 2015River Coln Netherton Bridge144459
39.8 cm22 Oct 2003River Coln - Coneygar Farm78421
36.9 cm29 Apr 2003River Coln - Coneygar Farm78418
36.3 cm7 Mar 2006River Coln Netherton Bridge108792
36.2 cm13 Mar 2015River Coln Netherton Bridge144459
35.7 cm24 Mar 2004River Coln Netherton Bridge79505
35.2 cm24 Mar 2004River Coln Netherton Bridge79505
35.2 cm24 Mar 2004River Coln Netherton Bridge79505
35 cm21 May 2002River Coln - Coneygar Farm73261

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 surveyedFirst recordedLast recordedVisits finding grayling
River Coln Netherton Bridge24 Mar 200413 Mar 20155
Dudsgrove Farm Bridge31 Mar 20041 Oct 20132
River Coln Coln St Dennis24 Mar 200424 Mar 20041
River Coln - Coneygar Farm21 May 200222 Oct 20034

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

2002–2015

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 173 measured fish were spread across different length ranges.

Smallest
7.3 cm
Lower quarter
14.8 cm
Median
16.9 cm
Upper quarter
26.2 cm
Largest
40.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 6 grayling. This is a subset of the measured fish and may not represent the whole population.

Lightest
3.6 oz (0.103 kg)
Lower quarter
13.5 oz (0.384 kg)
Median
1 lb 3.1 oz (0.5405 kg)
Upper quarter
1 lb 12.6 oz (0.8102 kg)
Heaviest
1 lb 15.1 oz (0.882 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Coln

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

Brown / sea trout Perch European eel Rainbow trout

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 →