Plankton and Benthos Research
Online ISSN : 1882-627X
Print ISSN : 1880-8247
ISSN-L : 1880-8247
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Occurrence of the Portuguese oyster Crassostrea angulata (Lamarck, 1819) along the coast of Shikoku Island, Japan
Masashi SekinoHiroshi IshikawaAtushi FujiwaraHiroyoshi Yamashita
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2016 Volume 11 Issue 2 Pages 71-74

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Abstract

We described a cryptic population of the Portuguese oyster Crassostrea angulata (Lamarck, 1819) identified from the coast of Shikoku Island, Japan. At the same location, we also confirmed the distribution of a recently recognized oyster species, C. dianbaiensis Xia, Wu, Xiao & Yu, 2014. As a diagnostic tool for species identification, we used the nucleotide sequences of three mitochondrial genes. These sequences were capable of reliably discriminating each of the above two species from their most closely related species: C. angulata from C. gigas (Thunberg, 1793), and C. dianbaiensis from C. bilineata (Röding, 1798). Our finding of a previously unrecognized distribution of these species provides important information to help promote the conservation of species diversity of Japanese oysters.

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© 2016 The Plankton Society of Japan, The Japanese Association of Benthology
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