An introduced population of <scp>C</scp>horda asiatica (<scp>C</scp>hordaceae, <scp>L</scp>aminariales) in <scp>P</scp>uget <scp>S</scp>ound, <scp>P</scp>acific coast of <scp>N</scp>orth <scp>A</scp>merica

• Published in: Phycological Research
• Main Authors: Kawai, Hiroshi, Hanyuda, Takeaki, Mumford, Thomas, Waaland, J. Robert
• Other Authors: Japan Society for the Promotion of Science
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2015
• Subjects: Aquatic Science; Agricultural and Biological Sciences (miscellaneous); Plant Science; North Atlantic
• Online Access: http://dx.doi.org/10.1111/pre.12089; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fpre.12089; https://onlinelibrary.wiley.com/doi/pdf/10.1111/pre.12089

Summary Northeastern P acific O cean and northwestern A tlantic O cean populations of C horda species, which have not been examined in previous phylogenetic studies, were investigated. All specimens that were collected in H ood C anal, P uget S ound, WA , USA , P acific coast of N orth A merica, showed identical ITS ‐5.8S rDNA sequences, and they were included in the clade of Japanese C horda asiatica . With morphological data added to the molecular data, they were identified as C . asiatica and were concluded to be non‐indigenous populations, most likely introduced with oyster spat together with S argassum muticum . Specimens collected in N ew Y ork, NY , USA , Atlantic coast of N orth A merica, were genetically closest to C . filum from N ewfoundland and were identified as C . filum. The genetic divergence of the North Atlantic populations of C . filum was relatively small compared to that of J apanese C . asiatica considering their broader distributional ranges on both sides of the A tlantic.