2004. Landlocked populations of an amphidromous goby, Rhinogobius sp. CO. Japan

Three landlocked populations of an amphidromous goby, Rhinogobius sp.CO, in San-nome-gata Lake, Akita Pref., Ukinuno Pond, Shimane Pref., and Cheonmi River, Jeju Island, Korea, were identified and evidenced by allozyme and otolith analyses. Line analysis of strontium: calcium ratios along the life h...

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Bibliographic Details
Published inJapanese Journal of Ichthyology Vol. 51; no. 2; pp. 175 - 180
Main Authors Sakai Harumi, Arai Takaomi, Imai Chifumi, Sugiyama Hideki, Sato Hitoshi, Jeon Sang-Rin
Format Journal Article
LanguageJapanese
Published The Ichthyological Society of Japan 2004
Subjects
アロザイム
ヨシノボリ属
両側回遊
耳石Sr: Ca比
陸封
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ISSN0021-5090
1884-7374
DOI10.11369/jji1950.51.175

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Summary:Three landlocked populations of an amphidromous goby, Rhinogobius sp.CO, in San-nome-gata Lake, Akita Pref., Ukinuno Pond, Shimane Pref., and Cheonmi River, Jeju Island, Korea, were identified and evidenced by allozyme and otolith analyses. Line analysis of strontium: calcium ratios along the life history transect of their otoliths showed relatively stable values as compared to those of amphidromous conspesifics, indicating the absence of sea-going career. The San-nome-gata and Ukinuno populations would have been landlocked in the Jomon (6000 years ago) and the Hakuho (1300 years ago) periods, respectively. Landlocking of the Cheonmi population may have occurred occasionally.
ISSN:0021-5090
1884-7374
DOI:10.11369/jji1950.51.175