Bullhead · Cottus gobio

Bullhead in the River Tees

Largest measured bullhead: 9.3 cm

The largest bullhead measured in Environment Agency surveys of the River Tees was 9.3 cm, recorded at SAP/BT Quin, Langley Beck, Selaby Ford on 24 September 2008.

Across 116 measured bullhead, the median measured length was 5.8 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 Tees.

See bullhead records across England →

Most recent observation10 October 2025SAP/BT Annual, River Greta - Brignall Mill

Largest measured bullhead: 9.3 cm
Median length: 5.8 cm
Fish measured: 116
Survey locations: 94

Individual EA measurements

Largest measured bullhead

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
9.3 cm	24 Sept 2008	SAP/BT Quin, Langley Beck, Selaby Ford	122512
9.3 cm	24 Sept 2008	SAP/BT Quin, Langley Beck, Selaby	115729
8.8 cm	14 Aug 2007	Temporal Coarse, Croft	108693
8.7 cm	24 Sept 2008	SAP/BT Quin, Langley Beck, Selaby Ford	122512
8.7 cm	24 Sept 2008	SAP/BT Quin, Langley Beck, Selaby	115729
8.4 cm	24 Sept 2008	SAP/BT Quin, Langley Beck, Selaby Ford	122512
8.4 cm	24 Sept 2008	SAP/BT Quin, Langley Beck, Selaby	115729
8.3 cm	24 Sept 2008	SAP/BT Quin, Langley Beck, Selaby Ford	122512
8.3 cm	24 Sept 2008	SAP/BT Quin, Langley Beck, Selaby Ford	122512
8.3 cm	24 Sept 2008	SAP/BT Quin, Langley Beck, Selaby	115729

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

Explore the river

Where bullhead were found

Each point marks a survey location with at least one bullhead 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 bullhead
SAP/BT Annual, River Greta - Brignall Mill	30 Nov 1995	10 Oct 2025	23
SAP/BT Quin, Middelton In Teesdale	18 Sept 1995	9 Oct 2025	8
SAP/BT Quin, Barnard Castle	18 Sept 1995	9 Oct 2025	3
SAP/BT Annual, Ornella Farm	3 Nov 1999	9 Oct 2025	18
SAP/BT Annual, Summerhouse Beck - Piercebridge	30 Nov 1995	8 Oct 2025	19
SAP/BT Annual, Deepdale Beck - Barnard Castle	8 Nov 1995	8 Oct 2025	23
SAP/BT Annual, Bowlees Beck - D/s Picnic Site	15 Nov 1995	8 Oct 2025	23
SAP/BT Annual, River Balder - Cotherstone	1 Dec 1995	24 Sept 2025	21
Temporal Coarse, Low Coniscliffe	8 Aug 2001	11 Sept 2025	10
BT Sentinel, River Tees, Mine Head	22 Sept 2008	8 Sept 2025	2
BT Sentinel, River Tees Widdy Bank Farm	28 Jun 2006	8 Sept 2025	8
BT Sentinel, Maize Beck, Birkdale	29 Jun 2006	8 Sept 2025	9
Temporal Coarse, Low Worsall	15 Aug 2025	15 Aug 2025	1
Temporal Coarse D/s Yarm - Leven Mouth	15 Aug 2025	15 Aug 2025	1
Temporal Coarse, Neasham	13 Aug 2001	11 Aug 2025	18
Temporal Coarse, Croft	15 Aug 2001	11 Aug 2025	16
Temporal Coarse, Low Moor	18 Sept 2002	4 Aug 2025	19
SAP/BT Quin, River Leven, Crathorne	1 Jul 2005	26 Jun 2023	3
SAP/BT Quin, River Leven, Bense Bridge	29 Jun 2005	26 Jun 2023	3
SAP/BT Quin, River Leven D/s Foxton Bridge	1 Jul 2005	26 Jun 2023	3
SAP/BT Quin, River Leven, Potto Beck, Sexhow	29 Jun 2005	23 Jun 2023	3
SAP/BT Quin, River Leven, Hutton Rudby	1 Jul 2005	23 Jun 2023	3
SAP/BT Quin, River Leven, Angrove West Farm	29 Jun 2005	23 Jun 2023	3
SAP/BT Quin, River Leven, Little Ayton	29 Jun 2005	22 Jun 2023	3
SAP/BT Quin, River Leven, Easby	29 Jun 2005	22 Jun 2023	3
SAP/BT Quin, River Leven, Broughton Bridge Beck	29 Jun 2005	22 Jun 2023	3
SAP/BT Quin, Percy Beck, Barnard Castle	8 Nov 1995	14 Sept 2022	5
SAP/BT Quin, Killerby Beck, Killerby	4 Nov 2004	14 Sept 2022	3
SAP/BT Quin, Clow Beck, Willow Bridge	16 Nov 2004	14 Sept 2022	4
SAP/BT Quin, Clow Beck, Aldbrough St John	16 Nov 2004	14 Sept 2022	4
SAP/BT Quin, Thorsgill Beck, Nr Boldron	10 Nov 2004	13 Sept 2022	4
SAP/BT Quin, Thorsgill Beck, Egglestone Abbey	8 Nov 1995	13 Sept 2022	5
SAP/BT Quin, Sudburn Beck, Bow Bridge	14 Nov 1995	13 Sept 2022	5
SAP/BT Quin, Scur Beck, North Gill Farm	10 Nov 2004	13 Sept 2022	4
SAP/BT Quin, Langley Beck, West Farm	4 Nov 2004	13 Sept 2022	4
SAP/BT Quin, Langley Beck, Selaby Ford	14 Nov 1995	13 Sept 2022	6
SAP/BT Quin, Langley Beck, Dent Gate farm	4 Nov 2004	13 Sept 2022	4
SAP/BT Quin, River Balder, Downstream Hury	1 Nov 1999	8 Sept 2022	8
SAP/BT Quin, Rowton Beck, Low Wray Farm	25 Jun 2010	22 Aug 2022	3
SAP/BT Quin, Park End Runner, Middleton In Teesdal	14 Nov 1995	22 Aug 2022	5
BT Sentinel, River Tees, Cronkley Bridge	10 Oct 2002	30 Oct 2019	6
River Tees near Metalband Hill	19 Sept 2014	23 Oct 2019	6
River Balder West Park Farm	7 Oct 2016	4 Sept 2019	3
Temporal Coarse, Low Haile Bridge	19 Sept 2002	18 Sept 2018	15
SAP/BT Annual, Egglestone Abbey	15 Sept 1995	21 Oct 2016	14
Force Garth Quarry	28 Sept 2015	23 Sept 2016	2
SAP/BT Annual, Clow Beck - Monk End Farm	8 Nov 1995	12 Sept 2016	16
SAP/BT Annual, Broken Scar	13 Oct 1999	10 Aug 2016	16
SAP/BT Quin, Spa Beck, Old Spa Farm	16 Nov 2004	26 Jul 2016	4
Temporal Coarse, Blackwell Bridge	7 Oct 2002	10 Sept 2015	12
WFD O Clow Beck at Clow Beck Farm	3 Oct 2013	3 Oct 2013	1
BT Sentinel, Trout Beck, Moorhouse	27 Jun 2006	26 Sept 2013	2
Spatial Coarse, Saltersgill Beck, High Worsall	23 Sept 2013	23 Sept 2013	1
SAP/BT Quin, River Greta, Rutherford Bridge	22 Jun 2005	16 Sept 2011	2
SAP/BT Quin, River Greta, Greta Bridge	21 Jun 2005	16 Sept 2011	2
SAP/BT Quin, River Greta, Gilmonby	21 Jun 2005	16 Sept 2011	2
SAP/BT Quin, River Greta, Eller Beck, Rutherford	21 Jun 2005	14 Sept 2011	2
SAP/BT Quin, River Greta, East Mellwaters	14 Sept 2011	14 Sept 2011	1
Greatham Beck, Newton Hanzard	16 Nov 2004	8 Jun 2011	2
Temporal Coarse, Swine Lairs u/s ford	10 Aug 2001	21 Oct 2010	7
SAP/BT Quin, Downstream Swine Lairs	13 Jun 2006	21 Oct 2010	2
SAP/BT Quin, Ornella Farm 2	17 Oct 2006	20 Oct 2010	3
Temporal Coarse, Middleton One Row	23 Aug 2001	14 Oct 2010	8
SAP/BT Quin, River Tees Blackwell	14 Oct 2010	14 Oct 2010	1
Temporal Coarse, Thornaby - U/s The Holmes	13 Sept 2010	13 Sept 2010	1
Temporal Coarse, Broken Scar	21 Aug 2002	7 Sept 2010	8
SAP/BT Quin, Langley Beck, Selaby	4 Nov 2004	28 Jun 2010	3
SAP/BT Quin, Holwick Head House	15 Jun 2006	25 Jun 2010	2
SAP/BT Quin, Lance Beck, Cotherstone	16 Jun 2010	16 Jun 2010	1
SAP/BT Annual, High Coniscliffe	15 Sept 1995	1 Nov 2007	11
Spatial Coarse, U/s Broken Scar	25 Sept 2006	25 Sept 2006	1
Spatial Coarse, Sockburn	25 Sept 2006	25 Sept 2006	1
Spatial Coarse, Girsby	25 Sept 2006	25 Sept 2006	1
SAP/BT Quin, Low Coniscliffe	25 Sept 2006	25 Sept 2006	1
SAP/BT Quin, Girsby	25 Sept 2006	25 Sept 2006	1
Spatial Coarse, Barnard Castle	14 Jun 2006	14 Jun 2006	1
SAP/BT Quin, Wycliffe	15 Sept 1995	13 Jun 2006	6
Temporal Coarse, Winston	15 Sept 1995	5 Oct 2005	6
Temporal Coarse, Clow Beck - Monk End Farm	9 Aug 2001	18 Aug 2005	4
SAP/BT Quin, River Greta, Tutta Beck, Tutta Beck	22 Jun 2005	22 Jun 2005	1
Spatial Coarse, Spa Beck, Spa Cottage	16 Nov 2004	16 Nov 2004	1
SAP/BT Quin, Spa Beck, Spa Cottage	16 Nov 2004	16 Nov 2004	1
Temporal Coarse, Langley Beck	19 Aug 2002	4 Nov 2004	3
SAP/BT Quin, Sudburn Beck, Bell House	4 Nov 2004	4 Nov 2004	1
SAP/BT Quin, Langley Beck Trib, Westholme Hall	4 Nov 2004	4 Nov 2004	1
Low Moor - Fry Survey	17 Sept 2004	17 Sept 2004	1
SAP/BT Quin, Gainford	18 Sept 2003	18 Sept 2003	1
Spatial Coarse, Blackwell Pumping Station	10 Aug 2000	17 Sept 2003	4
Spatial Coarse, Mill House, Piercebridge	17 Oct 2001	17 Oct 2001	1
Temporal Coarse, High Coniscliffe	13 Sept 2001	13 Sept 2001	1
Croft - Fry Survey	26 Sept 1994	11 Sept 2001	2
WR Monitoring Blackwell Pumping Station u/s	10 Aug 2000	10 Aug 2000	1
SAP/BT Quin, River Balder, Cotherstone Mill	1 Nov 1999	1 Nov 1999	1
WR Monitoring Egglestone Bridge	18 Sept 1995	21 Oct 1999	4

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

1994–2025

Survey records by year

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

194

1895

496

597

198

1099

1300

1301

2202

2103

4004

3505

3406

1707

1308

1609

3910

3011

012

1613

1214

1815

3316

1617

1318

1319

020

521

2222

1323

524

1725

Fish measured by surveyors

Measured length distribution

See how the 116 measured fish were spread across different length ranges.

Smallest: 2.4 cm
Lower quarter: 3.9 cm
Median: 5.8 cm
Upper quarter: 7 cm
Largest: 9.3 cm

0–99 mm

116

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Tees

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

Brown / sea trout Minnow Stone loach European eel Atlantic salmon Dace

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 →