RiverFish

Grayling · Thymallus thymallus

Grayling in the River Hull

Largest measured grayling: 46.3 cm

The largest grayling measured in Environment Agency surveys of the River Hull was 46.3 cm, recorded at West Beck Downstream Copper Hall Weir. on 23 October 2009.

Across 1,949 measured grayling, the median measured length was 15.1 cm.

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

See grayling records across England →

Most recent observation7 October 2025Whinhill, West Beck. 2002HULL/WR1 · 4 fish
Largest measured grayling
46.3 cm
Median length
15.1 cm
Fish measured
1,949
Survey locations
12

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
46.3 cm23 Oct 2009West Beck Downstream Copper Hall Weir.120361
45.7 cm11 Oct 2016West Beck Downstream Ryders Intake149765
45.5 cm2 Oct 2003Snakeholme, West Beck. 2002HULL/WR278607
45.2 cm12 Sept 2013West Beck Downstream Ryders Intake138641
44.5 cm18 Oct 2007Snakeholme, West Beck. 2002HULL/WR2108599
43.8 cm23 Oct 2009West Beck Downstream Copper Hall Weir.120361
43.5 cm23 Oct 2009West Beck Downstream Copper Hall Weir.120361
43 cm10 Oct 2007Whinhill, West Beck. 2002HULL/WR1108664
42.4 cm17 Oct 2009Whinhill, West Beck. 2002HULL/WR1120366
42.2 cm10 Oct 2007Whinhill, West Beck. 2002HULL/WR1108664

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
Whinhill, West Beck. 2002HULL/WR130 Sept 20027 Oct 20259
West Beck Downstream Ryders Intake9 Oct 200529 Sept 20256
Bell Mills, West Beck. HULLBT12 Oct 20001 Oct 202415
Snakeholme, West Beck. 2002HULL/WR25 Oct 200012 Oct 20109
Wilfholme Landing HULLCRS/(LOWER)222 Sept 201022 Sept 20101
West Beck Downstream Copper Hall Weir.9 Oct 200523 Oct 20093
Corpslanding, West Beck HULLCRS/(UPPER)12 Oct 200223 Oct 20093
West Beck downstream Wansford discharge8 Oct 20054 Oct 20073
West Beck at Wansford Trout farm8 Oct 20054 Oct 20073
West Beck Downstream Ryders Weir23 Oct 200623 Oct 20061
Upstream Copper Hall Weir, West Beck HULL/WR216 Oct 200116 Oct 20011
Upstream of Hull Bridge HULLCRS/(LOWER)310 Oct 200110 Oct 20011

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

2000–2025

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 1,949 measured fish were spread across different length ranges.

Smallest
6.5 cm
Lower quarter
12.5 cm
Median
15.1 cm
Upper quarter
26.4 cm
Largest
46.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Hull

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

Pike European eel 3-spined stickleback Bullhead Perch Minnow

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 →