160,102 species and infraspecific names are in the database, 22,602 images, 62,219 bibliographic items, 469,925 distributional records.

About AlgaeBase

Stauroneis phoenicenteron (Nitzsch) Ehrenberg

Asperococcus bullosus J.V.Lamouroux Houtman Abrolhos, Western Australia
© J.M. Huisman

What is AlgaeBase?

AlgaeBase is a database of information on algae that includes terrestrial, marine and freshwater organisms. At present, the data for the marine algae, particularly seaweeds, are the most complete. For convenience, we have included the sea-grasses, even though they are flowering plants.

Copyright and Intellectual Copyright

Copyright and other intellectual property rights worldwide are claimed by AlgaeBase.

Funding and sponsorship

The Phycological Society of America, the British Phycological Society, the International Phycological Society, and the Korean Phycological Society kindly subvent AlgaeBase annually and AlgaeBase licenses its data to other websites to support its activities.


Many organisations and people have, funded supported and contributed to AlgaeBase since its small beginnings on 20 March 1996. A full list is here.

We particularly appreciate the support of Dr J.A. West and Dr P.W. Gabrielson.


Programming is by Pier Kuipers, Caoilte Guiry, and Michael Guiry. Jonathan Guthrie was instrumental in programming earlier versions of the system.


Please bookmark www.algaebase.ORG rather than www.algaebase.COM. The latter leads to a site that has nothing to do with us.

Permanent Links

You can put in permanent links to AlgaeBase on your site like this:

Each one of these URLs will search for whatever you put in.

Citing AlgaeBase

Cite AlgaeBase as: Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 26 February 2021.


Many people at NUI, Galway contributed to AlgaeBase. In particular, Ms Eilís Nic Dhonncha in the period 1996-97 and 1999-2005; Dr Fabio Rindi (1999-2006), Dr Robert Wilkes, Mr Andy Taylor, Ms Sandy Lawson, Dr Róisín Nash, and Ms Liz Moran. We are most grateful to all of them.


AlgaeBase is often a compromise of taxonomic opinions that may or may not reflect your particular conclusions. It is also a work in progress, and is thus incomplete. Please note that AlgaeBase is purely meant as an aid to taxonomic studies and not a definitive source in its own right. You should always check the information included prior to use.

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