rent research on projects in the Estuarine and Red- 

 Tide Programs. The projects include studies of 

 sediments and organisms in bay bottoms, plankton 

 crops and fishes residing in and transferring be- 

 tween estuaries and the Gulf of Mexico, toxicity of 

 the red-tide organism, and experimental rearing of 

 pompano in an impounded lagoon. A physical, hy- 

 drological, biological, and sedimentological inven- 

 tory of Florida estuaries is also in progress as part 

 of a cooperative effort with the National Oceano- 

 graphic Data Center and the States of Alabama, 

 Mississippi, and Louisiana. 



291. Sea floor topography of the central eastern 

 Pacific Ocean. By Thomas E. Chase. June 

 1968, 8 pp., 19 figs., 26 app charts. 



ABSTRACT 

 The offshore configuration of the floor of the 

 eastern Pacific Ocean is presented on 26 topographic 

 charts. A description of the methods and data used 

 in their preparation is included with a general out- 

 line of the major topographic features of the region. 

 Innovations incorporated in the series of charts in- 

 clude a search and evaluation of all existing data 

 pertinent to the sea floor topography, contouring of 

 the region in detail, and labelling of prominent 

 undersea geological features. 



292. Bureau of Commercial Fisheries Fishery- 

 Oceanography Center, La Jolla, California. 

 Anonymous. July 1968, 4 fan-fold. 



(No abstract.) 



293. Bureau of Commercial Fisheries Federal 

 Aid Program. By Branch of Federal Aid. 

 June 1968, 122 pp. 



(No abstract.) 



294. Published in 1969. 



295. Re])ort of the Bureau of Commercial Fish- 

 eries Biological Laboratory, Galveston, Texas 

 fiscal year 1967. By Milton J. Lindner and 

 Robert E. Stevenson. December 1968, 35 pp., 

 25 figs., 10 tables. 



ABSTRACT 

 Progress of research is reported. Emphasis is on 

 shrimp, and the research involves the fields of biology, 

 population dynamics, ecology, and oceanography. 



296-297. Published in 1969. 



298. Research facilities of the Radiobiological 

 Laboratory Bureau of Commercial Fisheries 

 Beaufort, North Carolina. By T. R. Rice, 

 T. W. Duke and Staff. December 1968, 17 pp., 

 14 figs. 



ABSTRACT 

 The history, facilities, and organization are dis- 

 cussed. Research is performed on estuarine ecologj-, 

 biogeochemistry, pollution, and effects of radiation. 



299. Books and articles on marine mammals. 

 By Ethel I. Todd. December 1968, 14 pp. 



ABSTRACT 

 This is a g\iide to recent literature on pinnipeds 

 and cetaceans. 



300. Fishermen's atlas of monthly sea surface 

 temperatures for the Gulf of Mexico. By 

 Luis R. Rivas. November 1968, 33 pp., 2 figs. 



ABSTRACT 

 This atlas was prepared in response to interest 

 expressed by the Gulf fishing industry for surface 

 temperature information. It shows that sea surface 

 temperatures fluctuate greatly seasonally and lat- 

 itudinally with a yearly average of 77° F. This 

 temperature fluctuation causes a seasonal fluctu- 

 ation in the composition of the shallow-water fauna 

 in the northern Gulf. The atlas also shows that 

 surface temperatures extend deeper in winter than 

 in summer and that upwelling occurs along the 

 north coast of Yucatan during summer. In addi- 

 tion to monthly maps for mean surface isotherms, 

 monthly maps for maximum, minimum, and aver- 

 age surface temperatures are also given. 



301-302. Published in 1969. 



303. Bureau of Commercial Fisheries Fishery- 

 Oceanography Center La Jolla, California 

 fiscal year 1968. By Alan R. Longhurst. Sep- 

 tember 1968, 32 pp. 



ABSTRACT 



This report describes the facilities now available 

 for research and gives an account of research done 

 from July 1967 through June 1968. 



The main accomplishments of the Center during 

 this period have been completion of the E.\STRO- 

 PAC surveys of seasonal changes in the biology and 

 oceanography in the eastern Pacific, and design of 

 computer methods of analysis and presentation of 

 survey data; design and construction of an exper- 

 imental deep-sinking tuna purse seine net; partial 

 elucidation of the genetically distinct racial struc- 

 ture of the northern anchovy; and completion of 

 studies of the feeding budget of the California sar- 

 dine population during the rise and fall of the 

 fishery. 



304. Fish and Wildlife Act of 1956, as amended 

 (An excerpt from Title 16 of the United States 

 Code). Anonymous. December 1968, 11 pp. 



ABSTRACT 

 Contains provisions for the establishment of the 



