When it is recorded
Jan5
Feb0
Mar55
Apr720
May615
Jun78
Jul112
Aug44
Sep823
Oct515
Nov151
Dec0
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Powys | Wales | 629 | |
| 2 | Carmarthenshire | Wales | 300 | |
| 3 | Gwynedd | Wales | 253 | |
| 4 | Pembrokeshire | Wales | 247 | |
| 5 | Denbighshire | Wales | 207 | |
| 6 | Isle of Anglesey | Wales | 179 | |
| 7 | Wrexham | Wales | 178 | |
| 8 | Monmouthshire | Wales | 176 | |
| 9 | Ceredigion | Wales | 168 | |
| 10 | Swansea | Wales | 106 | |
| 11 | Conwy | Wales | 105 | |
| 12 | Herefordshire, County of | England | 7 | |
| 13 | Oxfordshire | England | 5 | |
| 14 | Aberdeenshire | Scotland | 4 | |
| 15 | Worcestershire | England | 2 |
43 England4 Scotland3,066 Wales
Records per county (GADM level 2) and per nation; one record can count towards several areas. 15 counties in all.
About this species
- Records since 2000
- 3,118
- Peak month
- September
- Counties with records
- 15
- Group
- Seaweeds and algae
- NBN Atlas records since 2000
- 3,113
- Most recorded in
- Powys, Carmarthenshire, Gwynedd, Pembrokeshire, Denbighshire, Isle of Anglesey, Wrexham, Monmouthshire, Ceredigion, Swansea, Conwy
- Kingdom
- Chromista
- Phylum
- Ochrophyta
- Class
- Bacillariophyceae
- Order
- Naviculales
- Family
- Naviculaceae
- Genus
- Navicula
- Name with authority
- Navicula gregaria Donkin
- Contributing datasets
- 3
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q49603805 · GBIF 5269292