Contents-continued 



Notes 



AUSTIN, C. BRUCE. Incorporating soak time into measurement of fishing effort in 



trap fisheries 213 



MISITANO, DAVID A. Species composition and relative abundance of larval and 

 post-larval fishes in the Columbia River estuary, 1973 218 



GUNN, JOHN T., and MERTON C. INGHAM. A note on: "Velocity and transport 

 of the Antilles Current northeast of the Bahama Islands" 222 



CREASER, EDWIN P., JR., and DAVID A. CLIFFORD. Salinity acclimation in the 

 soft-shell clam, Mya arenaria 225 



GRAVES, JOHN. Photographic method for measuring spacing and density within 

 pelagic fish schools at sea 230 



MORROW, JAMES E., ELDOR W. SCHALLOCK, and GLENN E. BERGTOLD. 

 Feeding by Alaska whitefish, Coregonus nelsoni, during the spawning run 234 



FISHER, WILLIAM S., and DANIEL E. WICKHAM. Egg mortalities in wild pop- 

 ulations of the Dungeness crab in central and northern California 235 



Vol. 74, No. 4 was published on 18 February 1977. 



The National Marine Fisheries Service (NMFS) does not approve, rec- 

 ommend or endorse any proprietary product or proprietary material 

 mentioned in this publication. No reference shall be made to NMFS, or 

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 or endorses any proprietary product or proprietary material mentioned 

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