ARAnglerRadar evidence & rules

Historic monitoring evidence · Environment Agency

Marlow D/S Fry

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.

20survey events
26 Aug 2003first recorded survey
4 Sept 2025latest recorded survey
16observed 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:29017
EA waterbody ID
GB106039023233
Waterbody
Marlow
Catchment
River Thames
02 · Observed evidence

Dated survey record

Scope
freshwater
Survey events
20
Positive taxa shown
16
Recorded methods
SEINE NETTING
03 · Freshness

Latest survey about 1 year ago

Coverage runs from 26 Aug 2003 to 4 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.

Minnow

Phoxinus phoxinus
First record
26 Aug 2003
Latest record
4 Sept 2025
Survey events
16

Gudgeon

Gobio gobio
First record
26 Aug 2003
Latest record
4 Sept 2025
Survey events
15

Roach

Rutilus rutilus
First record
26 Aug 2003
Latest record
4 Sept 2025
Survey events
15

Chub

Leuciscus cephalus
First record
26 Aug 2003
Latest record
4 Sept 2025
Survey events
14

Dace

Leuciscus leuciscus
First record
26 Aug 2003
Latest record
4 Sept 2025
Survey events
13

Perch

Perca fluviatilis
First record
26 Aug 2003
Latest record
4 Sept 2025
Survey events
11

3-spined stickleback

Gasterosteus aculeatus
First record
19 Aug 2008
Latest record
4 Sept 2025
Survey events
8

Bleak

Alburnus alburnus
First record
26 Aug 2003
Latest record
22 Aug 2024
Survey events
14

Bullhead

Cottus gobio
First record
21 Aug 2006
Latest record
22 Aug 2024
Survey events
7

Stone loach

Barbatula barbatula
First record
21 Aug 2006
Latest record
22 Aug 2024
Survey events
4

Barbel

Barbus barbus
First record
21 Aug 2014
Latest record
22 Aug 2024
Survey events
2

Ruffe

Gymnocephalus cernuus
First record
21 Aug 2006
Latest record
22 Aug 2016
Survey events
6

Pike

Esox lucius
First record
26 Aug 2003
Latest record
22 Aug 2012
Survey events
3

European eel

Anguilla anguilla
First record
22 Aug 2012
Latest record
22 Aug 2012
Survey events
1

Common bream

Abramis brama
First record
17 Aug 2010
Latest record
17 Aug 2010
Survey events
1

Tench

Tinca tinca
First record
21 Aug 2006
Latest record
21 Aug 2006
Survey events
1

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 →