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Fishery Bulletin 



<^ National Oceanic and Atmospheric Administration • National Marine Fisheries Service 



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Vol. 73, No. 3 



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July 1975 



LASKER, REUBEN. Field criteria for survival of anchovy larvae: The relation 



between inshore chlorophyll maximum layers and successful first feeding 453 



PEREZ FARFANTE, ISABEL. Spermatophores and thelyca of the American white 



shrimps, genus Penaeus, subgenus Litopenaeua 463 



CHITTENDEN, MARK E., JR. Dynamics of American shad, Alosa sapidissima, runs 



in the Delaware River 487 



SILLIMAN, RALPH P. Selective and unselective exploitation of experimental 



populations of Tilapia mossambica 495 



CLARK, ROBERT C, JR., and JOHN S. FINLEY. Uptake and loss of petroleum 



hydrocarbons by the mussel, Mytilus edulis, in laboratory experiments 508 



COLLETTE, BRUCE B., and LABBISH N. CHAO. Systematics and morphology of 



the bonitos {Sarda) and their relatives (Scombridae, Sardini) 516 



INGHAM, MERTON C. Velocity and transport of the Antilles Current northeast of 



the Bahama Islands 626 



HARTMANN, A. RUCKER, and THOMAS A. CLARKE. The distribution of myc- 



tophid fishes across the central equatorial Pacific 633 



PETERSON, WILLIAM T., and CHARLES B. MILLER. Year-to-year variations in 



the planktology of the Oregon upwelling zone 642 



RYBOCK, J. T., H. F. HORTON, and J. L. FESSLER. Use of otoliths to separate 



juvenile steelhead trout from juvenile rainbow trout 654 



HOUDE, EDWARD D., and L. J. SWANSON, JR. Description of eggs and larvae of 



yellowfin menhaden, Brevoortia smithi 660 



Notes 



KIEFER, DALE A., and REUBEN LASKER. Two blooms of Gijmnodinium splen- 

 dens, an unarmored dinoflagellate /< 675 



SANDIFER, PAUL A., PAUL B. ZIELINSKI, and WALTER E. CASTRO. Enhanced 

 survival of larval grass shrimp in dilute solutions of the synthetic polymer, 

 polyethylene oxide 678 



YONG, MARIAN Y. Y., and ROBERT A. SKILLMAN. A computer program for 

 analysis of polymodal frequency distributions (ENORMSEP), FORTRAN IV /->. . 681 



RICHARDSON, SALLY L., and DOUGLAS A. DeHART. Records of larval, trans- 

 forming, and adult specimens of the quillfish, Ptilichthys goodei, from waters off 

 Oregon 681 



(Continued on back cover) 



Seattle, Washington 



