RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Market Rasen Reach

Largest measured 3-spined stickleback: 7.3 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Market Rasen Reach was 7.3 cm, recorded at West Rasen on 4 April 1996.

Across 509 measured 3-spined stickleback, the median measured length was 3.8 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 Market Rasen Reach.

See 3-spined stickleback records across England →

Most recent observation28 May 2024R. Rase at Middle Rasen
Largest measured 3-spined stickleback
7.3 cm
Median length
3.8 cm
Fish measured
509
Survey locations
5

Individual EA measurements

Largest measured 3-spined stickleback

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

LengthSurvey dateSurvey locationSurvey ID
7.3 cm4 Apr 1996West Rasen57566
6.6 cm4 Oct 2007R. Rase at Middle Rasen107217
6.4 cm4 Apr 1996West Rasen57566
6.4 cm4 Apr 1996West Rasen57566
6.4 cm4 Apr 1996Market Rasen57565
6.4 cm7 Jul 1989R. Rase at Middle Rasen57530
6.3 cm8 Mar 1993R. Rase at Middle Rasen57593
6.2 cm19 May 2011R. Rase at Middle Rasen126958
6.2 cm19 May 2011R. Rase at Middle Rasen126958
6.2 cm4 Apr 1996West Rasen57566

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

Explore the river

Where 3-spined stickleback were found

Each point marks a survey location with at least one 3-spined stickleback 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 3-spined stickleback
R. Rase at Middle Rasen7 Jul 198928 May 20249
Market Rasen4 Apr 199618 Apr 20184
West Rasen14 Jul 198920 Apr 20155
Pilford Bridge19 Jul 198920 Apr 20155
Bishops Bridge (Rase)17 Nov 19899 Apr 19962

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

1989–2024

Survey records by year

Each bar shows how many survey visits recorded 3-spined stickleback that year.

Fish measured by surveyors

Measured length distribution

See how the 509 measured fish were spread across different length ranges.

Smallest
2.1 cm
Lower quarter
3.2 cm
Median
3.8 cm
Upper quarter
4.5 cm
Largest
7.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Market Rasen Reach

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

Stone loach Dace Gudgeon European eel Pike Perch

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 →