Contents — continued 



ROCKETTE, MARK D., GARY W. £¥A*ffiARD, and MARK E. CHITTENDEN, Jr. 

 Bathymetric distribution, spawning periodicity, sex ratios, and size compositions 

 of the mantis shrimp, Squilla empusa, in the northwestern Gulf of Mexico 418 



CROWE, BARBARA J. Distribution, length-weight relationship, and length- 

 frequency data of southern kingfish, Menticirrhus americanus , in Mississippi .... 427 



RADTKE, RICHARD. Scanning electron microscope evidence for yearly growth 

 zones in giant bluefin tuna, Thunnus thynnus, otoliths from daily increments . . . 434 



PAYNE, P. MICHAEL, and DAVID C. SCHNEIDER. Yearly changes in abun- 

 dance of harbor seals, Phoca vitulina, at a winter haul-out site in Massachusetts . 440 



GOLDBERG, STEPHEN R., VICTOR HUGO ALARCON, and JUERGEN ALHEIT 

 Postovulatory follicle histology of the Pacific sardine, Sardinops sagax from 

 Peru 443 



SHIMEK, RONALD L., DAVID FYFE, LEAH RAMSEY, ANNE BERGEY, JOEL 

 ELLIOTT, and STEWART GUY. A note on spawning of the Pacific market squid, 

 Loligo opalescens (Berry, 1911), in the Barkley Sound region, Vancouver Island, 

 Canada 445 



EPPERLY SHERYAN P., and WALTER R. NELSON. Arithmetic versus expo- 

 nential calculation of mean biomass 446 



Notice 

 NOAA Technical Reports NMFS published during last 6 months of 1983. 



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