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Historic monitoring evidence · Environment Agency

Colchester Zoo

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.

12survey events
23 Jan 1997first recorded survey
5 Oct 2025latest recorded survey
11observed taxa shown

Observed taxa

What monitoring recorded here

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

European eels > elvers

Anguilla anguilla
First record
23 Jan 1997
Latest record
5 Oct 2025
Survey events
12

Stone loach

Barbatula barbatula
First record
23 Jan 1997
Latest record
5 Oct 2025
Survey events
12

Brown / sea trout

Salmo trutta
First record
18 Mar 2003
Latest record
5 Oct 2025
Survey events
11

3-spined stickleback

Gasterosteus aculeatus
First record
18 Mar 2003
Latest record
5 Oct 2025
Survey events
11

Minnow

Phoxinus phoxinus
First record
5 Feb 2015
Latest record
5 Oct 2025
Survey events
9

Roach

Rutilus rutilus
First record
18 Mar 2003
Latest record
5 Oct 2025
Survey events
8

Dace

Leuciscus leuciscus
First record
18 Mar 2003
Latest record
5 Oct 2025
Survey events
7

Bullhead

Cottus gobio
First record
12 Oct 2018
Latest record
5 Oct 2025
Survey events
7

Chub

Leuciscus cephalus
First record
6 Mar 2009
Latest record
5 Oct 2025
Survey events
3

Rudd

Scardinius erythrophthalmus
First record
18 Mar 2003
Latest record
16 Sept 2024
Survey events
2

European elvers

Anguilla anguilla
First record
12 Oct 2018
Latest record
12 Oct 2018
Survey events
1

Rules and access

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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.

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Provenance

Source, licence and boundary

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