Based on new records, literature references and herbarium data, an updated checklist of the benthic marine algae of the northern Portuguese coast is provided.

Citation: Aráujo R., Bárbara I, Tibaldo M., Berecibar E., Díaz Tapia P., Pereira R., Santos R. & Sousa-Pinto I. Checklist of benthic marine algae and cyanobacteria of northern Portugal. Centre of Marine and Environmental Research; Interdisciplinary Centre for Marine and Environmental Research (Porto) (Ciimar).

Published: September 17, 2025 at 09:11

URL: http://ipt.vliz.be/eurobis/resource?r=northern_portugal

Rita Micaela Araújo
University of Porto; Interdisciplinary Centre for Marine and Environmental Research (Porto)

Ignacio Bárbara
University of A Coruña; Department of animal, plant and ecological biology

Isabel Sousa Pinto
University of Porto; Interdisciplinary Centre for Marine and Environmental Research (Porto)

Flanders Marine Institute (VLIZ)
Flanders Marine Institute (VLIZ)

1,756

occurrence records

203

taxa

214

species

Taxa

Missing and invalid fields

Field	Missing	Invalid
coordinateUncertaintyInMeters	1,756		100.0%
eventDate	13		0.7%
maximumDepthInMeters	1,756		100.0%
minimumDepthInMeters	1,756		100.0%
scientificNameID		36	2.1%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag	Records
NO_DEPTH	1,756	100.0%
ON_LAND	627	35.7%
NO_MATCH	36	2.1%
NO_ACCEPTED_NAME	4	0.2%

Checklist of benthic marine algae and cyanobacteria of northern Portugal

Taxa

Missing and invalid fields

Quality flags

Measurement types

DNA derived data