Contents— continued 



Notes 



ZIMMERMAN, STEVEN T., and ROBERT S. McMAHON. Paralytic shellfish poi- 

 soning in Tenakee, southeastern Alaska: A possible cause 679 



COLLINS, JEFF. Oil and grease: A proposed analytical method for fishery waste 

 effluents 681 



GADBOIS, D. F., E. M. RAVESI, and R. C. LUNDSTROM. Occurrence of volatile 

 N-nitrosamines in Japanese salmon roe 683 



WATKINS, WILLIAM A., and WILLIAM E. SCHEVILL. Underwater paint mark- 

 ing of porpoises 687 



EDGAR, ROBERT K., and JAMES G. HOFF. Grazing of freshwater and estuarine, 

 benthic diatoms by adult Atlantic menhaden, Brevoortia tyrannus 689 



JOHNSON, ALLYN G. Electrophoretic evidence of hybrid snow crab, Chionoecetes 

 bairdi X opilio 693 



KORN, SID, JEANNETTE W. STRUHSAKER, and PETE BENVILLE, JR. Effects 

 of benzene on growth, fat content, and caloric content of striped bass, Morone 

 saxatilis 694 



STAEGER, WILLIAM H., and HOWARD F. HORTON. Fertilization method 

 quantifying gamete concentrations and maximizing larvae production in Cras- 

 sostrea gigas 698 



AMERICAS 

 7> ^c, FIRSTINDUSTRY 



■j!!r GPO 696-333 



