RiverFish

Minnow · Phoxinus phoxinus

Minnow in the River Aire

Largest measured minnow: 9.9 cm

The largest minnow measured in Environment Agency surveys of the River Aire was 9.9 cm, recorded at Carleton Bridge on 7 August 2007.

Across 6,117 measured minnow, the median measured length was 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 Aire.

See minnow records across England →

Most recent observation1 July 2026Crossflatts
Largest measured minnow
9.9 cm
Median length
3 cm
Fish measured
6,117
Survey locations
37

Individual EA measurements

Largest measured minnow

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

LengthSurvey dateSurvey locationSurvey ID
9.9 cm7 Aug 2007Carleton Bridge108387
9.1 cm25 Jul 2017Crossflatts151047
9.1 cm20 Jul 2006Rodley101566
9 cm15 Jul 2005Hirstwood, u/s Bradford Beck85137
8.9 cm27 Jul 2008Hirstwood, u/s Bradford Beck114129
8.6 cm7 Aug 2007Carleton Bridge108387
8.6 cm7 Aug 2007Hirstwood, u/s Bradford Beck108126
8.6 cm12 Jul 2005Swillington Bridge85140
8.5 cm12 Jul 2005Thwaite Weir85133
8.5 cm19 Jul 2004Carleton Bridge83575

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

Explore the river

Where minnow were found

Each point marks a survey location with at least one minnow 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 minnow
Crossflatts18 Aug 19981 Jul 202613
Hirstwood, u/s Bradford Beck26 May 199830 Jun 202614
Rodley20 Jul 200629 Jun 20263
Kirkstall Abbey29 Jun 202629 Jun 20261
Thwaite Mill fry Survey14 Aug 201320 Aug 20259
Hanlith Bridge23 Aug 200729 Aug 20246
Chapel Haddelsey - Fry Survey21 Sept 20008 Aug 20198
Carleton Bridge20 Aug 199824 Jul 201712
Castleford Fry Survey18 Aug 201416 Aug 20163
Coniston Estate - US Gill Syke27 Oct 201527 Oct 20151
Coniston Estate - DS Gill Syke27 Oct 201527 Oct 20151
Bell Busk22 Aug 20075 Sept 20143
Gargrave Stepping Stones13 Aug 200214 Aug 20143
Upstream Esholt STW2 Jul 20142 Jul 20141
Swillington Bridge19 Aug 19982 Jul 20147
Apperley Bridge18 Jul 20131 Jul 20142
Silsden Bridge18 Aug 199826 Jun 201411
Dark Arches24 Jun 201124 Jun 20111
Thwaite Weir25 Aug 19985 Jul 201010
Kirkstall (400m d/s weir)27 Aug 199822 Jun 201010
Castleford19 Aug 199825 Jun 20097
Cononley, below Snaygill STW27 Aug 199826 Jun 20088
Newlay lower weir19 Jul 200519 Jul 20051
Keighley (River Worth Confluence) - Fry Survey21 Sept 198425 Sept 200320
Carleton Bridge - Fry Survey24 Sept 199225 Sept 200311
Castleford (Gill Net)22 Aug 200222 Aug 20021
Thwaite Weir (Gill Net)21 Aug 200221 Aug 20021
Kirkstall (400 metre d/s) (Gill Net)20 Aug 200220 Aug 20021
Coniston Cold u/s A65 Bridge13 Aug 200213 Aug 20021
Bingley Downstream A65030 Jul 200230 Jul 20021
Kildwick Bridge25 Jul 200225 Jul 20021
Esholt STW20 Jul 200220 Jul 20021
Knostrop - Fry Survey24 Sept 198622 Sept 19997
Gargrave STW20 Aug 199820 Aug 19981
Carleton Bridge Upstream20 Aug 199820 Aug 19981
Kildwick - Fry Survey24 Sept 199224 Sept 19921
Cononley - Fry Survey24 Sept 199224 Sept 19921

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

1984–2026

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 6,117 measured fish were spread across different length ranges.

Smallest
1.3 cm
Lower quarter
2.3 cm
Median
3 cm
Upper quarter
5.1 cm
Largest
9.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Aire

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

Stone loach Chub Gudgeon Bullhead Brown / sea trout 3-spined stickleback

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 →