ARAnglerRadar evidence & rules

Historic monitoring evidence · Environment Agency

Roundhouse to St Johns(margins)

Thames · survey site

This page records ecological survey evidence. It is not proof of current fish presence, abundance, fishing quality, access, permission or safety at this location.

19survey events
26 Jun 2002first recorded survey
22 Sept 2025latest recorded survey
17observed taxa shown

Separate-signal passport

What this record proves — and what it does not.

No blended quality score. Identity, monitoring, freshness, access and rules stay as separate signals so one strong fact cannot hide a missing one.

01 · Identity

Stable monitoring site

AnglerRadar ID
ea-fish-site:8108
EA waterbody ID
GB106039022990
Waterbody
Upper Thames
Catchment
Thames
02 · Observed evidence

Dated survey record

Scope
freshwater
Survey events
19
Positive taxa shown
17
Recorded methods
ELECTRIC FISHING · PDC ELECTRIC FISHING
03 · Freshness

Latest survey about 1 year ago

Coverage runs from 26 Jun 2002 to 22 Sept 2025. This is historic monitoring, never a live presence or catch forecast.

04 · Trip constraints

Access remains unresolved

The survey carries no fishing-rights boundary, permission, opening status or safety notice. Check the owner, rod licence, current byelaws and conditions separately.

Location protection: AnglerRadar does not print the survey coordinate on this page, and nearby API results use coarsened survey areas rather than exact species-linked points.

Observed taxa

What monitoring recorded here

Taxa are ordered by latest survey date. Counts and records reflect monitoring events, not an angling forecast.

Dace

Leuciscus leuciscus
First record
26 Jun 2002
Latest record
22 Sept 2025
Survey events
19

Bleak

Alburnus alburnus
First record
26 Jun 2002
Latest record
22 Sept 2025
Survey events
19

Roach

Rutilus rutilus
First record
26 Jun 2002
Latest record
22 Sept 2025
Survey events
19

Pike

Esox lucius
First record
26 Jun 2002
Latest record
22 Sept 2025
Survey events
19

Chub

Leuciscus cephalus
First record
26 Jun 2002
Latest record
22 Sept 2025
Survey events
18

Common bream

Abramis brama
First record
26 Jun 2002
Latest record
22 Sept 2025
Survey events
18

Perch

Perca fluviatilis
First record
26 Jun 2002
Latest record
22 Sept 2025
Survey events
18

Tench

Tinca tinca
First record
8 Oct 2004
Latest record
22 Sept 2025
Survey events
12

Barbel

Barbus barbus
First record
24 Oct 2011
Latest record
22 Sept 2025
Survey events
8

Gudgeon

Gobio gobio
First record
26 Jun 2002
Latest record
12 Sept 2024
Survey events
15

Silver bream

Abramis bjoerkna
First record
22 Sept 2023
Latest record
12 Sept 2024
Survey events
2

European eels > elvers

Anguilla anguilla
First record
12 Sept 2024
Latest record
12 Sept 2024
Survey events
1

Common [wild] carp

Cyprinus carpio
First record
26 Sept 2016
Latest record
26 Sept 2016
Survey events
1

Roach x common bream hybrid

Rutilus rutilus x Abramis brama
First record
26 Sept 2016
Latest record
26 Sept 2016
Survey events
1

Brown / sea trout

Salmo trutta
First record
8 Oct 2004
Latest record
28 Sept 2015
Survey events
7

Mirror carp

Cyprinus carpio
First record
24 Oct 2011
Latest record
24 Oct 2011
Survey events
1

Ruffe

Gymnocephalus cernuus
First record
5 Oct 2006
Latest record
16 Oct 2007
Survey events
2

Rules and access

Check before you travel.

Environment Agency ecology records do not carry fishing-rights boundaries or live restrictions. Confirm the fishery owner, permission, local byelaws, seasonal rules, safety notices and current conditions before setting out.

Check live freshwater fishing rules

Provenance

Source, licence and boundary

Open the official dataset

More evidence nearby

Other surveyed waters in Thames.

817 survey sites in this ecology region carry recorded taxa. Each keeps its own dates and source.

Browse Thames survey sites →