ARAnglerRadar evidence & rules

Historic monitoring evidence · Environment Agency

Polstead Mill

East Anglia · 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.

11survey events
27 Mar 1985first recorded survey
11 Jun 2024latest recorded survey
15observed 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:748
EA waterbody ID
GB105036040920
Waterbody
River Box (Main Reaches)
Catchment
Stour Catchment
02 · Observed evidence

Dated survey record

Scope
freshwater
Survey events
11
Positive taxa shown
15
Recorded methods
AC ELECTRIC FISHING · ELECTRIC FISHING · PDC ELECTRIC FISHING
03 · Freshness

Latest survey about 2 years ago

Coverage runs from 27 Mar 1985 to 11 Jun 2024. 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.

Brown / sea trout

Salmo trutta
First record
27 Mar 1985
Latest record
11 Jun 2024
Survey events
11

Dace

Leuciscus leuciscus
First record
27 Mar 1985
Latest record
11 Jun 2024
Survey events
11

European eels > elvers

Anguilla anguilla
First record
27 Mar 1985
Latest record
11 Jun 2024
Survey events
11

Minnow

Phoxinus phoxinus
First record
27 Mar 1985
Latest record
11 Jun 2024
Survey events
11

Stone loach

Barbatula barbatula
First record
27 Mar 1985
Latest record
11 Jun 2024
Survey events
11

Gudgeon

Gobio gobio
First record
27 Mar 1985
Latest record
11 Jun 2024
Survey events
8

Rudd

Scardinius erythrophthalmus
First record
27 Mar 1985
Latest record
11 Jun 2024
Survey events
8

3-spined stickleback

Gasterosteus aculeatus
First record
9 May 1997
Latest record
11 Jun 2024
Survey events
6

Roach

Rutilus rutilus
First record
27 Mar 1985
Latest record
17 May 2018
Survey events
9

Rainbow trout

Oncorhynchus mykiss
First record
27 Mar 1985
Latest record
17 May 2018
Survey events
2

Chub

Leuciscus cephalus
First record
27 Mar 1985
Latest record
28 Apr 2015
Survey events
8

Feral [brown] goldfish

Carassius auratus
First record
22 May 2012
Latest record
22 May 2012
Survey events
1

Roach x common bream hybrid

Rutilus rutilus x Abramis brama
First record
22 May 2012
Latest record
22 May 2012
Survey events
1

Common [wild] carp

Cyprinus carpio
First record
16 Apr 1991
Latest record
16 Apr 1991
Survey events
1

Pike

Esox lucius
First record
13 Apr 1988
Latest record
13 Apr 1988
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 East Anglia.

1,913 survey sites in this ecology region carry recorded taxa. Each keeps its own dates and source.

Browse East Anglia survey sites →