No. Title 



529. The Bureau of Commercial Fisheries Type IV electrofishing 

 shocker--its characteristics and operation. By Benjamin G. 

 Patten and Charles C. Gillaspie. April 1966, iii + 15 pp., 10 figs. 



530. Seasonal and areal distribution of zooplankton in coastal waters of 

 the Gulf of Maine, 1964. By Kenneth Sherman. May 1966, iii + 

 11 pp. , 10 figs. , 4 tables. 



531. Length-weight relation of the summer flounder Paralichthys dentatus 

 (Linnaeus). By Fred E. Lux and L. R. Porter, Jr. June 1966, 

 iii + 5 pp. , 1 fig. , 4 tables. 



532. Growth and survival of sockeye salmon introduced into Ruth Lake 

 after removal of resident fish populations. By William R. 

 Meehan. July 1966, iii + 18 pp. , 12 figs. , 14 tables. 



533. Annual fish passage report - Rock Island Dam, Columbia River, 

 Washington, 1965. By Paul D. Zimmer and John H. Broughton. 

 October 1966, iii + 24 pp., 3 figs., 21 tables. 



534. Distribution and abundance of sardine and anchovy larvae in the 

 California Current region off California and Baja California, 

 1954-64: a summary. By Elbert H. Ahlstrom. August 1966, 

 iii + 71 pp. , 6 figs. , 66 tables. 



535. Red- tide research summarized to 1964 including an annotated 

 bibliography. By George A. Rounsefell and Walter R. Nelson. 

 December 1966, iv + 85 pp. , 8 figs. , 3 tables. 



536. Fur seal investigations, Pribilof Islands, Alaska, 1965. By 

 Alton Y. Roppel, Ancel M. Johnson, Raymond E. Anas, and 

 Douglas G. Chapman. October 1966, v + 45 pp. , 14 figs. , 43 

 tables. 



537. Pelagic fur seal investigations, 1965. By Clifford H. Fiscus 

 and Hiroshi Kajimura. February 1967, vi + 42 pp. , 25 figs. , 

 26 tables. 



538. Distribution of spawning pink salmon in Sashin Creek, Southeastern 

 Alaska, and survival of their progeny. By William J. McNeil. 

 September 1966, iii + 12 pp. , 1 fig. , 13 tables. 



539. Tagging summary of American shad, Alosa sapidissima (Wilson) and 

 striped bass, Roccus saxatilis (Walbaum), Bureau of Commercial 

 Fisheries Biological Laboratory, Beaufort, N. C. , 1950-65. By 

 Paul R. Nichols and Randall P. Cheek. July 1966, iii + 8 pp. , 



1 fig. , 6 tables. 



540. Biological oceanography of the eastern tropical Pacific: summary 

 of existing information. By Maurice Blackburn. November 1966, 

 iii + 18 pp. , 6 figs. , 2 tables. 



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