Factsheets for Red Seaweeds (phylum Rhodophyta)

Genus: Iridaea Trade name: radula Symbol: IR
AuthorityBory de Saint-Vincent Type species: Iridaea cordata (Turner) Bory de Saint-Vincent 
Commercial species:  ciliata (CIL), edulis (EDL), laminarioides (LAM), membranacea (MEM)
Common names: Carrageenan, Carrageenan, Dulse, Ginnanso, Radula
Classification: Eukaryota, Phylum Rhodophyta, Class Rhodophyceae, Subclass Florideophycidae, Order Gigartinales, Family Gigartinaceae. 
AlgaeBase names and species:  71 names - 11 current as of 12-2001.
Comprehensive lists of common names , generic & specific names can be found at AlgaeBase. >>Click here<<  for DiveBorneo's policy on names.
DiveBorneo SeaPlant Utility Rating
Notable wild crop used for food & galactans
Harvesting must use good  environmental practices.
Description
Thalli in loose with conspicuous blades 20-40 cm wide. Stipe if variable length. Blades cordate to broadly lanceolate. Colour dark red to purple sometimes with brown overtones or a blue iridescence. Margins of blades often split or ruffled. Blades mostly smooth and rubbery except bumpy when fertile Morphology widely variable within and among species.
Habitat
Abundant on exposed, rocky coasts in low intertidal to subtidal zones to about 7m.

click images & go to sources

Iridaea production
click country to go to GIS
Tons per annum
wild harvest
Tons per annum
cultivated
Chile 5,606 0
Iceland n/a 0
Total 

5,606

5,606 0
Production
Approximate annual production figures from recent years are as above.
Biology & Agronomy
In preparation.
Chemistry
In preparation.
Processing
We have several monographs in progress covering analytical procedures post-harvest treatment and process technology. Check the processing index for available web pages and monographs. 
Products, Uses & Applications
List of species' uses and community affiliations
Genus GenID SpID Species Uses Communities
Iridaea IR CIL ciliata FH, FI, IA, MD, PA, PC, WB BP, CA SV, WB
Iridaea IR EDL edulis FH, FI, IA, MD, PA, PC, WB BP, CA SV, WB
Iridaea IR LAM laminarioides FH, FI, IA, MD, PA, PC, WB BP, CA SV, WB
Iridaea IR MEM membranacea FH, FI, IA, MD, PA, PC, WB BP, CA SV, WB

click to relevant uses or communities on the index/legend table below>>>

    to uses                                                    to communities  
Iridaea is most strongly associated with the Biopolymer,  Seavegetables, and  Wellbeing communities.
 Navigate please contact us with news & views
SiteIndex | SiteOnOnePage | InfoIndex | Events | Links | Monographs | Advisors | Handbook | Communities | GIS | ContactUs | About | Join

Interested in trading, buying or selling seaplants and seaplant products?
 Marine Botanicals.com

The copyright owners of images on this site agree to single, not-for-profit use for educational purposes and on  web-sites provided that proper acknowledgement is made of their rights. Please cite DiveSabah.com ©2013. All rights reserved | Terms | Privacy