266. The West German research vessel Walther 

 Heiivig. By Ernest D. McRae, Jr. Septem- 

 ber 1967, iii + 23 pp., 20 figs. 



ABSTR.^CT 

 The Walther Herwig is a modern fishery research 

 vessel built for the West German Government and 

 launched in 1963. The vessel was primarily designed 

 as a stern trawler for use in high sea fisheries in- 

 vestigations with emphasis on midwater and bottom 

 trawling. Pertinent features of design, equipment, 

 appurtenances, arrangement, and location are de- 

 scribed in some detail for the benefit of interested 

 groups or organizations who may be planning to 

 build or outfit vessels of their own for similar use. 



267. Published in "1968. 



268. Report of the Bureau of Commercial Fish- 

 eries Biolog-ical Laboratory, Galveston, Texas 

 fiscal year 1966. By Milton J. Lindner and 

 Robert E. Stevenson. September 1967, iii -I- 

 43 pp., 49 figs., 5 tables. 



ABSTRACT 

 A progress report of the research at the Lab- 

 oratory in Galveston. Emphasis is on shrimp, and 

 the research involves the fields of biology, popula- 

 tion djTiamics, ecology, experimental biology, and 

 oceanography. 



269. Published in 1968. 



270. Annual Report of the Bureau of Commer- 

 cial Fisheries Radiobiological Laboratory 

 Beaufort, N.C. for the fiscal year ending June 

 30, 1966. By T. R. Rice. December 1967, 

 iii -t- 39 pp., 35 figs., 19 tables. 



(No abstract.) 



271. Field guide to eastern Pacific and Ha- 

 waiian sharks. By Susumu Kato, Stewart 

 Springer and Mary H. Wagner. December 

 1967, 47 pp., 75 figs. 



ABSTRACT 

 Illustrations, descriptions, and keys to the identi- 

 fication of more than 70 species of sharks are pre- 

 sented. 



272. Organizing the research report to reveal 

 the units of research. By F. Bruce Sanford. 

 December 1967, iii + 9 pp., 9 figs. 



ABSTRACT 

 As a research project becomes increasingly com- 

 plex, the traditional outline used to report the re- 

 search becomes less satisfactory. The reason is that 

 the traditional outline tends to dismember the basic 

 units of the research and to regroup the parts in 

 such a manner that the whole is obscured. Suggested 



havior, and work on other research projects, 

 here is a model that will help the researcher or- 

 ganize his report in such a way that the basic units 

 are kept intact and their identity is revealed regard- 

 less of how complex the research may be. 



273. Design of the MV Delaivare 11. By Keith 

 A. Smith. October 1967, iii + 8 pp., 2 figs., 



2 tables. 



ABSTRACT 



This exploratory fishing and gear research ves- 

 sel of the Bureau of Commercial Fisheries was de- 

 signed as a stern ramp trawler of 155.5 feet length 

 overall and is under construction in South Portland, 

 Maine. Delivery is scheduled for spring 1968. The 

 new vessel will be operated by the Exploratory Fish- 

 ing and Gear Research Base at Gloucester, Mass. 

 Special efforts were made to design an efficient stern 

 trawler with a mechanized trawl handling system. 

 The design provides capability for side trawling, 

 clam and scallop dredging, longlining, gill netting, 

 and purse seining as well as for handling experi- 

 mental fishing units and systems. The vessel will 

 be powered by a 1,000-hp. diesel engine. The de- 

 signed service speed is 12.5 knots, cruising radius 

 is 8,000 miles, and the capacity for sustained oper- 

 ation at sea is 30 days. 



274. Progress in 1965-66 at the Bureau of Com- 

 mercial Fisheries Biological Laboratory, Hon- 

 olulu. By Thomas A. Manar. August 1967. 

 51 pp., 30 figs. 



ABSTRACT 

 This report deals with research results achieved by 

 the Bureau of Commercial Fisheries Biological Lab- 

 oratory in Honolulu from July 1, 1965, to December 

 31, 1966. Stressed are the studies which have pro- 

 vided the first numerical estimates of the size of 

 the skipjack tuna population of the central Pacific 

 Ocean, an untapped stock of fishes that could hugely 

 increase the U.S. tuna catch. Investigations with 

 a new, sophisticated sonar and a small two-man sub- 

 marine are also described. Publications issued or 

 in press during the period are listed. 



275. Fur seal industry of the Pribilof Islands, 

 1786-1965. By Francis Riley. October 1967, 

 vi + 12 pp. 



(No abstract.) 



276. Fatty acid composition of fish oils. By Ed- 

 ward H. Gruger, Jr. December 1967, 30 pp.. 



3 tables. 



(No abstract.) 



277. Production of fish oil. By George M. 

 Pigott. December 1967, 10 pp., 5 figs. 



(No abstract.) 



