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e-ased.org, vol. 35, no. 3, pp.151-155, 2019

DOI: https://doi.org/10.5635/ASED.2019.35.3.018

First Record of the Brackish Water Amphipod Jesogammarus (Jesogammarus) hinumensis (Amphipoda: Anisogammaridae) from Korea with DNA Barcode Analysis among Jesogammarus Species

Chi-Woo Lee1, Ko Tomikawa2, Gi-Sik Min1,*

Affiliation: 1Department of Biological Sciences, Inha University, Incheon 22212, Korea 2Department of Science Education, Graduate School of Education, Hiroshima University, Higashihiroshima 739-8524, Japan

Abstract: Jesogammarus (Jesogammarus) hinumensis Morino, 1993 was discovered firstly from a brackish water region in Jeju Island, Korea. To identification of the specimens we conducted both of morphological and molecular analyses. This species is characterized by having large eyes and a robust seta on the mandibular palp article 1. The morphology of this Korean specimens was well matched with the original description without variation. The mitochondrial cytochrome c oxidase subunit I (COI) sequences of the present specimens were also completely identical to the sequences of J. (J.) hinumensis collected from the type locality of the species. Thus, we concluded that the Jesogammarus species from Jeju Island is J. (J.) hinumensis, based on both morphological and molecular data.

Keyword: COI, DNA barcode, Jesogammarus hinumensis, Jeju Island, Korea