Fishery Bulletin 



CONTENTS 



Vol. 85, No. 4 October 1987 



QUAST, JAY C. Morphometric variation of Pacific Ocean perch, Sebastes alutus, 

 off western North America 663 



REISENBICHLER, R. R., and S. R. PHELPS. Genetic variation in chinook, 

 Oncorhynchus tshawytscha, and coho, O. kisutch, salmon from the north coast of 

 Washington 681 



KLEIBER, P., and B. BAKER. Assessment of interaction between North Pacific 

 albacore, Th annus alalunga, fisheries by use of a simulation model 703 



LAI, HAN-LIN, DONALD R. GUNDERSON, and LOH LEE LOW. Age determina- 

 tion of Pacific cod, Gadus macrocephalus , using five ageing methods 713 



ABLE, K. W., D. C. TWICHELL, C. B. GRIMES, and R. S. JONES. Sidescan sonar 

 as a tool for detection of demersal fish habitats 725 



SMITH, ERIC M. , and PENELOPE T. HOWELL. The effects of bottom trawling on 

 American lobsters, Homarus americanus, in Long Island Sound 737 



KUDO, GEORGE, HAROLD J. BARNETT, and RICHARD W. NELSON. Factors 

 affecting cooked texture quality of Pacific whiting, Merluccius productus, fillets 

 with particular emphasis on the effects of infection by the Myxosporeans Kudoa 

 paniformis and K. thyrsitis 745 



LEIS, JEFFREY M., BARRY GOLDMAN, and SHOJI UEYANAGI. Distribution 

 and abundance of billfish larvae (Pisces: Istiophoridae) in the Great Barrier Reef 

 Lagoon and Coral Sea near Lizard Island, Australia 757 



BRILL, RICHARD W., ROBERT BOURKE, JAMES A. BROCK, and MURRAY D. 

 DAILEY. Prevalence and effects of infection of the dorsal aorta in yellowfin 

 tuna, Thunnus albacares, by the larval cestode, Dasyrhynchus talismani 767 



FABLE, WILLIAM A., JR., ALLYN G. JOHNSON, and LYMAN E. BARGER. Age 

 and growth of Spanish mackerel, Scomberomorus maculatus, from Florida and the 

 Gulf of Mexico 777 



O'NEIL, STEVEN P., and MICHAEL P. WEINSTEIN. Feeding habitats of spot, 

 Leiostomus xanthurus, in polyhaline versus meso-oligohaline tidal creeks and 

 shoals 785 



APPELDOORN, RICHARD S. Assessment of mortality in an offshore population of 

 queen conch, Strombus gigas L., in southwest Puerto Rico 797 



(Continued on next page ) 



Seattle, Washington 



1987 



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