MIGRATION OF FRESHWATER FISHES. Martyn C. Lucas and Etienne Baras. 2001. Blackwell Science, Oxford, United Kingdom. ISBN 0-632-05754-8. 440 p. $113.00 (hardback).—One would be hard pressed to identify a topic of ichthyological research older than that of the study of fish migration. According to Izaak Walton, author of The Compleat Angler, ribbon tags were being attached to the tails of Atlantic salmon in England in the first half of the 17th century to determine their movements within rivers. Three hundred fifty years later, we are doing much the same thing. Ribbon tags may have been supplanted by more technologically sophisticated Passive Integrated Transponder (PIT) tags, electronic tags, and coded wire tags, but the basic reasons for applying such tags has remained the same. We want to know where fish move, why they move where they do, and what advantages are gained by undertaking such movements.
Martyn Lucas and Etienne Baras'...