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Historic monitoring evidence · Environment Agency

Grasslees Burn

North East · 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.

6survey events
25 Aug 1993first recorded survey
24 Jun 2025latest recorded survey
7observed 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.

Brown / sea trout

Salmo trutta
First record
25 Aug 1993
Latest record
24 Jun 2025
Survey events
6

Atlantic salmon

Salmo salar
First record
25 Aug 1993
Latest record
24 Jun 2025
Survey events
6

Minnow

Phoxinus phoxinus
First record
13 Sept 1995
Latest record
24 Jun 2025
Survey events
4

Stone loach

Barbatula barbatula
First record
25 Aug 1993
Latest record
24 Jun 2025
Survey events
4

Lamprey sp.

Petromyzontidae
First record
25 Aug 1993
Latest record
24 Jun 2025
Survey events
4

European eel

Anguilla anguilla
First record
4 Jul 2019
Latest record
24 Jun 2025
Survey events
2

3-spined stickleback

Gasterosteus aculeatus
First record
4 Jul 2019
Latest record
24 Jun 2025
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