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Charles Darwin Foundation Galapagos Species Checklist


Heterokonts: Brown algae and related groups

The Ochrophyta are a phylum of phylogenetically related organisms with heterokont motile cells, meaning that they have two flagella of unequal length that are typically attached laterally.

The largest and best known group in the Ochrophyta is the brown algae, aptly named because of the brown pigmentation caused by the presence of xanthophylls like fucoxanthine or flavoxanthine.

The cell wall of the brown algae is poor in cellulose but rich in alginates, a polysaccharide of commercial importance.
Brown algae are also rich in laminarin and manitol, both storage sugars.

Authors: Diego Ruiz, Frauke Ziemmeck.

Other Contributors: Stuart Banks, Margarita Brandt, Rodrigo Bustamante, Angel Chiriboga, Graham Edgar, José Miguel Fariña, Peter Glynn, Jack Grove, Alex Hearn, Cleveland Hickman, Paul Humann, Jerson Moreno, Fernando Pinillos, Fernando Rivera, Franz Smith, Marco Toscano, Mariana Vera, Luis Vinueza.

Names of taxa included: 61 total (55 accepted, 3 unidentified taxon, 3 preliminary identification).

Origin of the taxa included: 18 endemic, 3 indigenous.

Ochrophyta Species Checklist

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Domain Eukaryota

Kingdom Chromalveolata

Division Heterokontophyta

Class Phaeophyceae

Order Desmarestiales

Family Desmarestiaceae

Order Dictyotales

Family Dictyotaceae

Order Ectocarpales

Family Acinetosporaceae

Family Chordariaceae

Family Ectocarpaceae

Family Mesosporaceae

Order Fucales

Family Sargassaceae

Order Laminariales

Family Lessoniaceae

Order Scytosiphonales

Family Chnoosporaceae

Family Scytosiphonaceae

Order Sphacelariales

Family Sphacelariaceae

Order Sporochnales

Family Sporochnaceae

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You are welcome to download and use this information acknowledging the origin of the data.
This list should be cited as follows:

Ruiz, D., Ziemmeck, F. (2011). CDF Checklist of Galapagos Heterokonts: Brown algae and related groups - FCD Lista de especies de Heterokonta: Algas pardas y grupos relacionados de Galápagos. In: Bungartz, F., Herrera, H., Jaramillo, P., Tirado, N., Jiménez-Uzcátegui, G., Ruiz, D., Guézou, A. & Ziemmeck, F. (eds.). Charles Darwin Foundation Galapagos Species Checklist - Lista de Especies de Galápagos de la Fundación Charles Darwin. Charles Darwin Foundation / Fundación Charles Darwin, Puerto Ayora, Galapagos: http://www.darwinfoundation.org/datazone/checklists/algae/ochrophyta/ Last updated 13 Apr 2011.