RiverFish

Ruffe · Gymnocephalus cernuus

Ruffe in the River Oxford Watercourses

Largest measured ruffe: 12.7 cm

The largest ruffe measured in Environment Agency surveys of the River Oxford Watercourses was 12.7 cm, recorded at North field brook - Four Pillars hotel on 10 August 2006.

Across 70 measured ruffe, the median measured length was 7.8 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 Oxford Watercourses.

See ruffe records across England →

Most recent observation27 August 2014Castle Mill Stream - Jericho · 2 fish
Largest measured ruffe
12.7 cm
Median length
7.8 cm
Fish measured
70
Survey locations
5

Individual EA measurements

Largest measured ruffe

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

LengthSurvey dateSurvey locationSurvey ID
12.7 cm10 Aug 2006North field brook - Four Pillars hotel100564
12.6 cm31 Aug 2011North field brook - Four Pillars hotel129624
11.7 cm31 Aug 2011North field brook - Four Pillars hotel129624
11 cm31 Aug 2011North field brook - Four Pillars hotel129624
10.9 cm31 Aug 2011North field brook - Four Pillars hotel129624
10.8 cm11 Aug 2014Wolvercote Mill Stream - Wolvercote Mill East Arm142205
10.6 cm31 Aug 2011North field brook - Four Pillars hotel129624
10.5 cm31 Aug 2011North field brook - Four Pillars hotel129624
10.4 cm31 Aug 2011North field brook - Four Pillars hotel129624
10.4 cm10 Aug 2006North field brook - Four Pillars hotel100564

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

Explore the river

Where ruffe were found

Each point marks a survey location with at least one ruffe 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 ruffe
Castle Mill Stream - Jericho27 Aug 201427 Aug 20141
Osney Stream - St Frideswides Church10 Aug 200418 Aug 20142
Castle Mill Stream - College Gardens18 Aug 201418 Aug 20141
Wolvercote Mill Stream - Wolvercote Mill East Arm11 Aug 201411 Aug 20141
North field brook - Four Pillars hotel10 Aug 200631 Aug 20112

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

2004–2014

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 70 measured fish were spread across different length ranges.

Smallest
5.5 cm
Lower quarter
6.8 cm
Median
7.9 cm
Upper quarter
8.9 cm
Largest
12.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Oxford Watercourses

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

Bleak Perch Roach Chub Pike Silver bream

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 →