3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Tanners Brook

Largest measured 3-spined stickleback: 6.6 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Tanners Brook was 6.6 cm, recorded at Downstream Railway on 24 May 2023.

Across 46 measured 3-spined stickleback, the median measured length was 4.5 cm.

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

See 3-spined stickleback records across England →

Most recent observation24 May 2023Downstream Railway · 35 fish

Largest measured 3-spined stickleback: 6.6 cm
Median length: 4.5 cm
Fish measured: 46
Survey locations: 2

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.

Length	Survey date	Survey location	Survey ID
6.6 cm	24 May 2023	Downstream Railway	162609
6.2 cm	24 May 2023	Downstream Railway	162609
6 cm	24 May 2023	Downstream Railway	162609
5.7 cm	24 May 2023	Downstream Railway	162609
5.6 cm	24 May 2023	Downstream Railway	162609
5.6 cm	24 May 2023	Downstream Railway	162609
5.4 cm	10 Oct 2008	Downstream Railway	116460
5.3 cm	24 May 2023	Downstream Railway	162609
5.3 cm	13 Oct 2015	Old School Lane	147324
5.3 cm	13 Oct 2015	Old School Lane	147324

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 surveyed	First recorded	Last recorded	Visits finding 3-spined stickleback
Downstream Railway	10 Oct 2008	24 May 2023	4
Old School Lane	22 Sept 2011	18 May 2023	3

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

2008–2023

Survey records by year

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

108

009

010

211

012

013

014

215

016

017

018

019

020

021

022

223

Fish measured by surveyors

Measured length distribution

See how the 46 measured fish were spread across different length ranges.

Smallest: 2.2 cm
Lower quarter: 4.2 cm
Median: 4.5 cm
Upper quarter: 5.1 cm
Largest: 6.6 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Tanners Brook

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

Stone loach

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 →