When it is recorded
Jan0
Feb0
Mar11
Apr242
May217
Jun27
Jul36
Aug9
Sep253
Oct131
Nov30
Dec0
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Powys | Wales | 217 | |
| 2 | Gwynedd | Wales | 101 | |
| 3 | Carmarthenshire | Wales | 93 | |
| 4 | Ceredigion | Wales | 70 | |
| 5 | Pembrokeshire | Wales | 54 | |
| 6 | Isle of Anglesey | Wales | 53 | |
| 7 | Swansea | Wales | 43 | |
| 8 | Wrexham | Wales | 41 | |
| 9 | Monmouthshire | Wales | 39 | |
| 10 | Denbighshire | Wales | 38 | |
| 11 | Conwy | Wales | 25 | |
| 12 | Dumfries and Galloway | Scotland | 4 | |
| 13 | Aberdeenshire | Scotland | 4 | |
| 14 | Worcestershire | England | 3 | |
| 15 | Herefordshire, County of | England | 1 |
10 England10 Scotland936 Wales
Records per county (GADM level 2) and per nation; one record can count towards several areas. 17 counties in all.
About this species
- Records since 2000
- 956
- Peak month
- September
- Counties with records
- 17
- Group
- Seaweeds and algae
- NBN Atlas records since 2000
- 956
- Most recorded in
- Powys, Gwynedd, Carmarthenshire, Ceredigion, Pembrokeshire, Isle of Anglesey
- Kingdom
- Chromista
- Phylum
- Ochrophyta
- Class
- Bacillariophyceae
- Order
- Fragilariales
- Family
- Fragilariaceae
- Genus
- Synedra
- Name with authority
- Synedra ulna (Nitzsch) Ehrenberg, 1832
- Described
- 1832
- Contributing datasets
- 2
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · GBIF 3192457