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Species · Crustaceans

Common freshwater amphipod

Gammarus pulex

665Records since 2000
OctoberPeak month
59Counties with records

When it is recorded

Jan0
Feb8
Mar115
Apr108
May88
Jun19
Jul17
Aug11
Sep102
Oct131
Nov50
Dec1

GBIF records by month, 2000–2025 (all years combined).

Where it is recorded

#CountyNationRecordsShare
1Dumfries and Galloway Scotland54
2Scottish Borders Scotland46
3Perth and Kinross Scotland44
4Powys Wales37
5Aberdeenshire Scotland31
6Fife Scotland29
7Cambridgeshire England23
8Angus Scotland20
9Carmarthenshire Wales17
10Dorset England15
11Kent England12
12Highland Scotland12
13Worcestershire England12
14Ceredigion Wales12
15South Lanarkshire Scotland12
69 England353 Scotland87 Wales

Records per county (GADM level 2) and per nation; one record can count towards several areas. 59 counties in all.

About this species

Records since 2000
665
Peak month
October
Counties with records
59
Scientific name
Gammarus pulex
Group
Crustaceans
NBN Atlas records since 2000
178
Most recorded in
Dumfries and Galloway
Kingdom
Animalia
Phylum
Arthropoda
Class
Malacostraca
Order
Amphipoda
Family
Gammaridae
Genus
Gammarus
Name with authority
Gammarus pulex (Linnaeus, 1758)
Described
1758
Contributing datasets
18

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q492178 · GBIF 2219853