Species Detail - Biddulphia alternans - Species information displayed is based on all datasets.

Terrestrial Map - 10km

Distribution of the number of records recorded within each 10km grid square (ITM).
Live Map

Marine Map - 50km

Distribution of the number of records recorded within each 50km grid square (WGS84).
Live Map
Biddulphia alternans
N/A
N/A
N/A
bialt
(J. W. Bailey) Van Heurck, 1883
diatom
Species
108
4
4
30/05/1982
12/06/2003
22 April (recorded in 2003)
14 October (recorded in 2002)
National Biodiversity Data Centre, Ireland, Biddulphia alternans, accessed 22 February 2025, <https://maps.biodiversityireland.ie/Species/24034>

Records per month (across all datasets)

Records per year (across all datasets)