Vol. 66, no. 3, issued 1968, ii + Pp. 441-609 . 



Models of oceanic migrations of Pacific salmon and comments on guidance mechanisms. 

 By William F. Royce, Lynwood S. Smith, and Allan C. Hartt. March 1968, Pp. 441-462, 17 

 figs. 



Hydrological and biological characteristics of Florida's west coast tributaries. By Alex- 

 ander Dragovich, John A. Kelly, Jr., and H. Grant Goodell. March 1968, Pp. 463-477, 12 

 figs., 6 tables. 



Intragravel flow and interchange of water in a streambed. By Walter G. Vaux. March 1968, 

 Pp. 479-489, 14 figs., 1 table. 



Mortality rates in populations of pink shrimp, Penaeus duorarum, on the Sanibel Grounds, 

 Florida. By T. J. Costello and Donald M. Allen. March 1968, Pp. 491-502, 8 figs., 5 

 tables. 



Oceanographic conditions in the northeast Pacific Ocean and their relation to the albacore 

 fishery. By Robert W, Owen, Jr., March 1968, Pp. 503-526, 16 figs., 3 tables. 



Calanoid copepods from the central North Pacific Ocean. By Tai Soo Park. March 1968, 

 Pp. 527-572, 13 plates, 2 tables. 



A rapid method of tagging fish. By Henry M, Sakuda. March 1968, Pp. 573-574, 1 fig. 



Migration and distribution of pink salmon spawners in Sashin Creek in 1965, and survival 

 of their progeny. By William J. McNeil. May 1968, Pp. 575-586, 2 figs., 12 tables. 



Preliminary analysis of the catch curve of the Pacific sardine, Sardinops caerulea Girard. 

 By Sigeiti Hayasi. May 1968, pp. 587-598, 3 figs., 2 tables. 



Diel movement and vertical distribution of juvenile anadromous fish in turbine intakes. By 

 Clifford W, Long. May 1968, pp. 599-609, 8 figs., 8 tables. 



Vol. 67, no. 1, issued 1968, ii + pp. 1-181 . 



Seasonal depth distribution offish in southeastern Lake Michigan. By LaRue Wells. June 

 1968, pp. 1-15, 11 tables. 



Biology of the blue crab, Callinectes sapidus Rathbun, in St. Johns River, Florida. By 

 Marlin E. Tagatz. June 1968, pp. 17-33, 7 figs., 11 tables. 



Passage of adult chinook salmon through Brownlee Resevoir, 1960-62. By Parker S. 

 Trefethen and Doyle F, Sutherland. July 1968, pp. 35-45, 9 figs., 3 tables. 



Distribution, apparent abundance, and size composition of albacore ( Thunnus alalunga ) 

 taken in the longline fishery based in American Samoa, 1954-65. By Tamio Otsu and 

 Ray F. Sumida, July 1968, pp. 47-69, 21 figs., 5 tables. 



Micronekton of the eastern tropical Pacific Ocean: family composition, distribution, 

 abundance, and relations to tuna. By Maurice Blackburn. August 1968, pp. 71-115, 19 figs., 

 15 tables. 



Supersaturation of atmospheric gases in the coastal waters of the Gulf of Maine. By Alden 

 P. Stickney. August 1968, pp. 117-123, 1 fig., 1 table. 



Relation between tail length and total length for three commercially important species of 

 penaeid shrimp. By Clark T. Fontaine and Richard A. Neal. August 1968, pp. 125-126, 2 

 figs., 1 table. 



Sea-stars of North Carolina. By I. E. Gray, Maureen E. Downey, and M. J. Cerame- Vivas, 

 pp. 127-163, 40 figs., 1 table. 



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