When it is recorded
Jan1
Feb0
Mar1
Apr13
May19
Jun1
Jul1
Aug1
Sep27
Oct24
Nov11
Dec0
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Pembrokeshire | Wales | 22 | |
| 2 | Gwynedd | Wales | 18 | |
| 3 | Powys | Wales | 12 | |
| 4 | Carmarthenshire | Wales | 10 | |
| 5 | Ceredigion | Wales | 7 | |
| 6 | Swansea | Wales | 6 | |
| 7 | Wrexham | Wales | 5 | |
| 8 | Denbighshire | Wales | 4 | |
| 9 | Isle of Anglesey | Wales | 3 | |
| 10 | Conwy | Wales | 2 | |
| 11 | Oxfordshire | England | 1 |
3 England95 Wales
Records per county (GADM level 2) and per nation; one record can count towards several areas. 11 counties in all.
About this species
- Records since 2000
- 100
- Peak month
- September
- Counties with records
- 11
- Group
- Seaweeds and algae
- NBN Atlas records since 2000
- 97
- Kingdom
- Chromista
- Phylum
- Ochrophyta
- Class
- Bacillariophyceae
- Order
- Naviculales
- Family
- Amphipleuraceae
- Genus
- Frustulia
- Name with authority
- Frustulia vulgaris (Thwaites) De Toni, 1891
- Described
- 1891
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q67710522 · GBIF 8383982