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Chorda asiatica
Image courtesy of Gary W. Saunders, University of New Brunswick, and the CC BY-NC-SA 3.0 license.
Chorda asiatica
Taxonomic Group: Algae


Chorda asiatica is a brown alga, which resembles a thick brown chord. It is native to the rocky shores of Japan, from Kyushu to Hokkaido. An introduced population is known from Puget Sound, Washington, where it was likely introduced with Pacific Oysters (Crassostrea gigas). Molecular identification is almost always necessary due to its simple morphology and the tendency to confuse this species with others from the Chorda genus. It is associated with cold, boreal waters and grows on shells, pebbles, boulders, and rock. No ecological or economic impacts have been reported.

* Content for this species is based on the literature and peer review is pending - if you have comments or feedback please contact Paul Fofonoff at

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Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
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Marine Invasions Lab
Smithsonian Environmental Research Center

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