Marine Biology

, Volume 63, Issue 1, pp 73–77 | Cite as

Initiation of feeding and salinity tolerance in the pacific lamprey Lampetra tridentata

  • J. E. Richards
  • F. W. H. Beamish


Changes in salinity tolerance were determined during metamorphosis in Lampetra tridentata. Lampreys in Phase 5 of metamorphosis were unable to withstand salinities>13.4‰S, while those in Phase 6 survived direct transfer to sea water (30‰S). This abrupt change in tolerance coincided with the opening of the foregut lumen. Parasitic feeding began at the end of Phase 7 of metamorphosis following the completion of tooth development.


Abrupt Change Salinity Tolerance Direct Transfer Tooth Development Pacific Lamprey 
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Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • J. E. Richards
    • 1
  • F. W. H. Beamish
    • 1
  1. 1.Department of ZoologyUniversity of GuelphGuelphCanada

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