Dataset

Rhodolith occurrences in the Azores (central north Atlantic) between 1998 and 2018

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

Rhodoliths is a general term used to designate non-geniculate coralline red algae (Rhodophyta) that live unattached (Riosmena-Rodríguez, 2017). The term is used here to encompass (i) branched free-living coralline algae devoid of an evident nucleus, but also (ii) nucleated nodules where the biogenic calcium carbonate deposit around the core represents >50%, as well as (iii) “coated grains” where the core is larger than the algal carbonate component.

Citation: Tempera F.; Sinde-Mano A.L.; Quartau R.; Rebelo A.C.; Graça G.; Das D.; Milla i Figueras D.; Bates R.; Ramos M.; Isidro E.; Afonso P.; IMAR-Institute of Marine Research, University of the Azores, Portugal; (2021): Rhodolith occurrences in the Azores (central north Atlantic) between 1998 and 2018. https://dx.doi.org/10.14284/559

Published: September 17, 2025 at 10:14

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

Fernando Tempera
Institute of Marine Research

Pedro Afonso
Institute of Marine Research

Ana Luísa Sinde-Mano
Institute of Marine Research

Rui Quartau
Institute of Marine Research

Ana Cristina Rebelo
University of Porto; Faculty of Sciences; Department of Zoology and Antropology; Research Center in Biodiversity and Genetic Resources

Goncalo Graca
Institute of Marine Research

Diya Das
Institute of Marine Research

David Milla-Figueras
Institute of Marine Research

Richard Bates
University of St Andrews

Manuela Ramos
Institute of Marine Research

Eduardo Isidro
Institute of Marine Research

421
occurrence records
497
measurements and facts
5
taxa
4
species

Taxa

Missing and invalid fields

Field Missing Invalid
eventDate 3
0.7%

Quality flags

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

Flag Dropped Records
DEPTH_EXCEEDS_BATH 110
26.1%
ON_LAND 53
12.6%

Measurement types

DNA derived data