No. Title 



468. Statistical records and computations on red salmon (Oncorhynchus 

 nerka) runs in the Nushagak District, Bristol Bay, Alaska, 

 1946-59. By Ole A. Mathisen, Robert L. Burgner, and Ted S. Y. 

 Koo. June 1963, iii + 32 pp., 2 figs., 21 tables. 



469. Success of pink salmon spawning relative to size of spawning bed 

 materials. By William J. McNeil and W. H. Ahnell. January 

 1964, iii + 15 pp., 7 figs., 6 tables. 



470. The segregation of red salmon in the escapements to the Kvichak 

 River system, Alaska. By Howard Donald Smith. January 1964 , 

 iii + 20 pp. , 8 figs. , 6 tables. 



* 471. Acute oral toxicity of 1,496 chemicals force-fed to carp. By 



Howard A. Loeb and William H. Kelly. September 1963, iii + 

 124 pp. , 3 tables. 



472. Use of plant extracts in serological studies of fish. By Fred M. 

 Utter, George J. Ridgway, and Harold O. Hodgins. February 

 1964, iii + 18 pp., 2 figs., 10 tables. 



473. Economic survey of the U.S. fisheries in the Passamaquoddy 

 region, 1956-57. By Giulio Pontecorvo and Leslie W. 

 Scattergood. December 1963, iii + 14 pp., 2 figs. , 16 tables. 



* 474. Publications on fish parasites and diseases, 330 B. C. - A. D. 



1923. By E. A. McGregor. 1963, ii + 84 pp. 



475. Pelagic fur seal investigations, Alaska waters, 1962. By 

 Clifford H. Fiscus, Gary A. Baines, and Ford Wilke. January 

 1964, iii + 59 pp. , 28 figs. , 24 tables. 



476. Herring fishery of the U. S. Passamaquoddy region. By Leslie W. 

 Scattergood and Lewis J. Lozier. March 1964, iii + 21 pp. , 



18 figs. , 8 tables. 



477. North Pacific oceanography, February - April 1962. By Felix 

 Favorite, Betty-Ann Morse, Alan H. Haselwood, and Robert A. 

 Preston, Jr. February 1964, iii + 66 pp. , 2 figs. 



478. Age and size composition of the menhaden catch along the Atlantic 

 Coast of the United States, 1959, with a brief review of the com- 

 mercial fishery. By William R. Nicholson and Joseph R. Higham, 

 Jr. July 1964, iv + 34 pp. , 6 figs. , 23 tables. 



479. Age and size composition of the I960 menhaden catch along the 

 U.S. Atlantic Coast, with a brief review of the commercial fishery. 

 By William R. Nicholson and Joseph R. Higham, Jr. August 1964, 

 iv + 41 pp. , 6 figs. , 23 tables. 



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