LISTS 

 Circular 



315. Synopsis of biological data on the chum 

 salmon, Oncdrhyiichus keta (Walbaum) 1792. 

 By Richard G. Bakkala. March 1970, iii + 89 

 pp., 15 figs., 51 tables. 



ABSTRACT 

 Information presented on the chum salmon in- 

 cludes nomenclature, taxonomy, morphology-, dis- 

 tribution, ecology and life history, population 

 dynamics, fishery, and protection and management. 



316-318. Published in 1969. 



319. Bureau of Commerical Fisheries Great 

 Lakes Fishery Laboratory Ann Arbor, Michi- 

 gan. Anonymous. March 1970. 4 fan-fold. 



(Xo abstract) 



320-329. Published in 1969. 



330, Vol. 4. EASTROPAC Atlas: Biological 

 and Nutrient Chemistry Data from Principal 

 Participating Ships, First and Second Moni- 

 tor Cruises, April-July 1967. By Cuthbert 

 M. Love, (editor). November 1970, viii -I- 125 

 pp., 165 charts. For sale by the Superinten- 

 dent of Documents, U.S. Government Print- 

 ing Office, Washington, D.C. 20402 — Price 

 $4.75 per volume. 



ABSTRACT 

 This atlas contains charts depicting the distribu- 

 tion of physical, chemical, and biological oceano- 

 graphic properties and associated meteorological 

 properties observed during EASTROPAC. EAST- 

 ROPAC was an international cooperative investi- 

 gation of the eastern tropical Pacific Ocean (20° N. 

 to 20° S., and from the west coasts of the American 

 continents to 119° W.) which was intended to pro- 

 vide data necessary for a more effective use of the 

 marine resources of the area, especially tropical 

 tunas, and also to increase knowledge of the ocean 

 circulation, air-sea interaction, and ecology. The 

 Bureau of Commercial Fisheries (now National 

 Marine Fisheries Service) was the coordinating 

 agency. The field work, from February 1967 through 

 March 1968, was divided into seven 2-month cruise 

 periods. During each cruise period one or more 

 ships were operating in the study area. 



On completion of the field work the data seemed 

 too numerous for a classical data report. Instead, it 

 was decided to produce an 11-volume atlas of the 

 results, with 5 volumes containing physical oceano- 

 graphic and meteorological data from the principal 

 participating ships, H volumes containing biological 

 and nutrient chemistry data from the same ships, 

 and 1 volume containing all data from Latin Ameri- 



can cooperating ships and ships of opportunity. 



Extensive use was made of a computer and auto- 

 matic plotter in preparation of the atlas charts. 

 Methods used to collect and process the data upon 

 which the atlas is based are described in detail by 

 the contributors of the following categories of 

 charts: temperature, salinity, and derived quanti- 

 ties; thickness of the upper mixed layer; dissolved 

 oxygen; meteorology; nutrient chemistrj-; phyto- 

 plankton standing stocks and production; zoo- 

 plankton and fish larvae; micronekton; birds, fish 

 schools, and marine mammals. 



331. Guidelines for the Processing of Hot- 

 Smoked Chub. By H. L. Seagran, J. T. Grai- 

 koski, and J. A. Emerson. January 1970, iv 

 + 23 pp.. 8 figs., 2 tables. 



ABSTRACT 

 Attention is called to the importance of plant 

 sanitation and of raw material quality and handling 

 in the preparation of an acceptable, safe smoked 

 chub product. Suggested procedures for brining 

 and smoking the fish are included, together with a 

 brief discussion of related variables and processing 

 equipment. The application of these guidelines 

 should help industry- prepare smoked chub that will 

 meet known requirements of public regulatory agen- 

 cies. 



332. Pacific Hake — Importance of the World- 

 wide Hake, Merhfccins, Resource. By Richard 

 B. Grinols, and Michael F. Tillman. March 

 1970, iii -I- 1-21 pp., 12 figs., 2 tables. 



ABSTRACT 

 Aspects of hake taxonomy, biologj-, and world 

 fisheries are reviewed from the literature. Of the 

 11 nominal hake species, 6 represent a substantial 

 segment of the total gadoid species landed in the 

 world and play an important role in world fisheries 

 economy. The historical development of the fishery 

 for six species of hake is discussed. 



(332.) Pacific Hake — Distribution and Biologj' 

 of Pacific Hake: A Synopsis. By Martin 0. 

 Nelson, and Herbert A. Larkins. March 1970, 

 pp. 23-33. 2 figs., 1 table. 



ABSTRACT 

 Pacific hake occur from the Gulf of Alaska to 

 the Gulf of California. Genetic studies suggest that 

 a single population inhabits the ocean region from 

 British Columbia to Baja California. 



Studies of the abundance of hake larvae have 

 shown that spawning is mainly during December 

 to .\pril in offshore areas along the coasts of south- 

 ern California and Baja California. The morpho- 

 logical characteristics of larvae are comparable to 

 other fish with pelagic eggs. Larvae are most often 

 encountered within or near the thermocline at 

 temperatures of 47..5° to 65..3° F. Little is known 

 about the distribution of juvenile (ages 1-3) hake. 



