The three papers included in this Fish Bulletin constitute a summary of the work which has been done by the Bureau of Marine Fisheries of the California Division of Fish and Game between 1936 and 1944 to measure movements and abundance of the sardine population by means of a tagging program:
Movements and Abundance of the Sardine as Measured by Tag Returns. By Frances N. Clark, and John F. Janssen, Jr.
The Effect of Internal Tags upon Sardines. By John F. Janssen, Jr. And J. Alfred Aplin.
Measurement of The Losses in the Recovery of Sardine Tags.
By Frances N. Clark and John F. Janssen, Jr.
