Eel Biology pp 457-468 | Cite as

Chloride Cells in the Japanese Eel During Their Early Life Stages and Downstream Migration

  • Toyoji Kaneko
  • Sanae Hasegawa
  • Seiji Sasai


In teleost fishes, a number of species perform spectacular migrations between seawater and freshwater environments. The Japaneseeel, Anguilla japonica, is one of the species that perform such extensive migrations. The spawning area of Japaneseeel is located in the North Equatorial Current west of Mariana Islands, and the larvae drift with the current, which leads to the Kuroshio Current to the coast of Eastern Asia (Tsukamoto 1992). After entering rivers, theeels spend a sedentary life in freshwater for 5 to 12 years, and then go downstream to the sea for spawning. Thus, theeels are equipped with mechanisms for adaptation to both freshwater and saltwater, which are adjusted to forthcoming environments during their upstream and downstream migrations.


Chum Salmon Early Life Stage Chloride Cell Downstream Migration Gill Epithelium 
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Copyright information

© Springer-Verlag Tokyo 2003

Authors and Affiliations

  • Toyoji Kaneko
    • 1
  • Sanae Hasegawa
    • 1
  • Seiji Sasai
    • 1
  1. 1.Ocean Research InstituteThe University of TokyoNakano-ku, TokyoJapan

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