basis. Scattered data for several other species are 

 also presented. Analysis of variation in proximate 

 composition and the influence of (1) geographic lo- 

 cation of catch, (2) yearly variation, (.3) reproduc- 

 tive cycle, (4) sex, (5) food, (6) size, (7) activity, 

 and (8) species are discussed. The fishery is de- 

 scribed, and data are given on fluctuations in bottom 

 temperature and types of bottom encountered. 

 Changes in moisture and oil content are shown, and 

 an equation for estimating the oil content of a lot, 

 composed of mixed species, from its known moisture 

 content is presented. The equation (Y = 65.3 — 

 0.8X) can be used to predict the oil content with a 

 statistically estimated error of ±0.6 percent oil. A 

 series of actual samples showed the average devi- 

 ation to be —0.1 percent. 



Vol. 3, No. 3. Proximate composition of the Pa- 

 cific Coast Dungeness crab (Cancer magister) . 

 By Robert N. Farragut and Mary H. Thomp- 

 son December 1966, pp. 1-4, 4 figs., 3 tables. 

 ABSTRACT 

 The proximate composition of Pacific Coast Dun- 

 geness crab is given. Data from 4 samples each of 

 frozen body meat, claw meat, and offal of the Dun- 

 geness crab are reported, as is the composition of 

 2 types of cooked packs from the same lots. Changes 

 in proximate composition resulting from processing 

 are noted. 



Vol. 3, No. 3. Microbial analyses of frozen raw 

 breaded shrimp. By Bobby J. Carroll, Travis 

 D. Love, Benjamin Q. Ward, and Melvin E. 

 Waters. December 1966, pp. 5-11, 2 tables. 

 ABSTRACT 

 164 commercially packed samples of frozen raw 

 breaded shrimp from 14 processing plants were 

 tested for total plate counts, coliforms, Escherichia 

 coli, fecal streptococci, and coagulase-positive sta- 

 phylococci. The aim of the study was to supply 

 background data on which realistic future bacterio- 

 logical standards can be based. 



Vol. 3. No. 3. Recent technological studies of 

 Dungeness crab processing. Part 4 — Prelim- 

 inary report on salt uptake and heat penetra- 

 tion in whole-cooked crab. By Harold Barnett 

 and Richard W. Nelson. December 1966, pp. 

 18-16, 3 figs., 1 table. 



ABSTRACT 

 A study undertaken to show the effect on whole 

 Dungeness crab of varying the concentration of 

 brine in the cook water indicated that salt is ab- 

 sorbed at a faster rate in leg meat than in body 

 meat and that cooking crab in brine causes a slight 

 weight loss. 



An evaluation of the rate of penetration of heat in 

 whole crab during brine cooking showed that whole 



crabs may sometimes be undercooked at the end of 

 23 minutes, which is the time normally used in 

 commercial cooking. 



Vol. 3, No. 3. Commercial fisheries of the Co- 

 lumbia River and adjacent ocean waters. By 

 A. T. Pruter. December 1966, pp. 17-68, 42 

 figs., 22 tables. 



ABSTRACT 

 Fisheries in the Columbia River and the adjacent 

 ocean waters constitute a largo and valuable in- 

 dustry with important economic and recreational 

 benefits to people of the Pacific Northwest. Rapidly 

 developing agricultural and manufacturing indus- 

 tries in the Columbia River Basin, however, are 

 placing increasing demands upon the fresh-water 

 environment of resident and anadromous species. 

 The advent of the nuclear age raises the possibility 

 that man may adversely affect the ocean environ- 

 ment also. 



This report examines the commercial fisheries in 

 the river and ocean, stressing their importance in 

 the overall development plans for the Columbia Riv- 

 er Basin. The fisheries are classified into 3 groups: 

 those for species resident in the Columbia, those for 

 anadromous species, and those for marine species. 

 The fisheries then are described on the basis of in- 

 dividual fish species within each of these groups. 

 The descriptions include information on areas of 

 capture, references to types of harvesting gear, and 

 historical reviews of landings. 



Fishery Leaflet 



581. List of fishermen's and fish shore workers' 

 unions in the United States. By Economic 

 Service Section Branch of Foreign Trade and 

 Economic Services. June 1966, 4 pp. 



(No abstract.) 



582. The bait shrimp industry of the Gulf of 

 Mexico. By Anthony Inglis and Edward Chin. 

 May 1966, iii + 10 pp., 6 figs. 



(No abstract.) 



583. Plankton. By Louella E. Cable. July 

 1966, iii + 13 pp., 4 figs. 



(No abstract.) 



584. Marine protein concentrate. By Bureau 

 of Commercial Fisheries Technological Lab- 

 oratory, College Park, Maryland. April 1966, 

 v -I- 27 pp., 3 figs., 12 tables. 



ABSTRACT 

 General information is given on a method to con- 

 vert red hake into a high-quality marine protein 

 concentrate for human consumption. Plans, as well 



