CONTENTS 



FISHERY BULLETIN OF THE U.S. FISH AND WILDLIFE SERVICE 



VOLUME 67, NUMBER 1 



Page 

 Seasonal depth distribution of fisli in southeastern Lake Michigan. By La Rue Wells. 



(Published June 1968.) 1 



Biology of the blue crab, Cdlinectes sapidus Rathbun, in the St. Jolms River, Florida. By Marlin E. 



Tagatz. (Published June 1968.) 17 



Passage of adult chinook salmon through Brownlee Resei-voir, 1960-62. By Parker S. Trefethen 



and Doyle F. Sutherland. ( Published July 1968.) 35 



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. 

 (Published July 1968.) 47 



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



and relations to tuna. By Maurice Blackburn. (Published August 1968.) 71 



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



Stickney. (Published August 1968.) II7 



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



shrimp. By Clark T. Fontaine and Richard A. Neal. (Published August 1968.) 125 



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



(Published August 1968.) 127 



Abundance and distribution of the larvae of the pink shrimp (Penaeiis duorarum) on the Tortugas 

 Shelf of Florida, August 1962-October 1964. By J. L. Munro, A. C. Jones, and D. Dimitriou. 

 (Published September 1968.) I65 



