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Species · Seaweeds and algae

Sea Lettuce

Ulva fenestrata

1,776Records since 2000
AugustPeak month
36Counties with records

When it is recorded

Jan18
Feb10
Mar71
Apr140
May212
Jun270
Jul308
Aug311
Sep252
Oct129
Nov30
Dec19

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

Where it is recorded

#CountyNationRecordsShare
1Cornwall England70
2Torbay England50
3Norfolk England44
4Suffolk England27
5Devon England24
6Ards and North Down Northern Ireland23
7Gwynedd Wales21
8Dorset England20
9Highland Scotland18
10Isle of Anglesey Wales18
11Plymouth England16
12Argyll and Bute Scotland15
13Pembrokeshire Wales15
14Isles of Scilly England12
15Essex England11
1,285 England181 Scotland175 Wales76 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 36 counties in all.

About this species

Records since 2000
1,776
Peak month
August
Counties with records
36
Scientific name
Ulva fenestrata
Group
Seaweeds and algae
NBN Atlas records since 2000
7,923
Most recorded in
Cornwall, Torbay
Kingdom
Plantae
Phylum
Chlorophyta
Class
Ulvophyceae
Order
Ulvales
Family
Ulvaceae
Genus
Ulva
Name with authority
Ulva fenestrata Postels & Ruprecht, 1840
Described
1840
Contributing datasets
15

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q49424532 · GBIF 5273511