, Volume 598, Issue 1, pp 271–284

Recent benthonic ostracod assemblages as indicators of the Tsushima warm current in the southwestern sea of Japan

Primary research paper

DOI: 10.1007/s10750-007-9162-6

Cite this article as:
Tanaka, G. Hydrobiologia (2008) 598: 271. doi:10.1007/s10750-007-9162-6


One hundred and sixty-seven species of podocopid ostracods are reported from 26 recent surface sediment samples collected on the shelf of the Tsushima Strait in the southwestern Sea of Japan. Four biofacies (A–D) are recognised based on Q-mode cluster analysis. Among these, biofacies B is distributed along the Tsushima Warm Current and includes typical East China Sea species. This fact suggests that the migration of the shelf-living ostracods between the open sea and the adjacent semi-enclosed marginal sea mainly occurs in association with the inflow of this sea current. The distribution of the recent ostracod assemblages from the Tsushima Strait are expected to be a sensitive indicator of past and future changes in the Tsushima Warm Current. One new ostracod species of the family Trachyleberididae, Trachyleberis ikeyai, is described and illustrated herein.


Ostracoda Podocopa Trachyleberis New species Tsushima Strait Southwestern Japan 

Supplementary material

10750_2007_9162_MOESM1_ESM.doc (68 kb)
Supplemental MaterialESM1 (DOC 68 KB)

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.Department of Geology & MineralogyKyoto UniversitySakyo-kuJapan