SERFLING, STEVEN A., and RICHARD F. FORD, 

 "Ecological studies of the puerulus larval stage of the 

 California spiny lobster, Panulirus interruptus" 360 



Shad, American 

 dynamics of runs in Delaware River 



age and repeat spawner composition 489 



comparative magnitudes of runs, 1961-68 490 



comparative year-class strengths 491 



sex composition of spawning runs 488 



size composition 489 



Sheephead, California 

 reproductive biology 



age and growth 165 



age determination methods 263 



anatomical features of gonad and sexual transfor- 

 mation 267 



coloration, sex, and field distribution of coloration 



types 274 



distribution of gonad development classes with time 271 



methods 264 



multiple spawning and fecundity 272 



sex ratio and estimate of survival 279 



source of materials 263 



time of sampling 263 



transformation schedule 268 



SHELDON, WILLIAM W., and ROBERT L. DOW, 

 "Trap contributions to losses in the American lobster 

 fishery" 449 



Shiner, golden 

 effects of photoperiod-temperature regimes and 

 pinealectomy on body fat reserves 766 



SHIPPEN, HERBERT H.-see WEBER and SHIPPEN 



Shrimp, larval grass 

 survival, enhanced in 

 dilute solutions of polyethylene oxide 678 



Shrimp, white 

 spermatophores and thelyca of American 



comf)arisons of spermatophores 483 



descriptions 466 



Penaeus {Litopenaeus) occidentalis 469 



Penaeus {Litopenaeus) tichmitti 476 



Penaeus (Litopenaeus) setiferus 479 



Penaeus (Litopenaeus) stylirostris 472 



Penaeus (Litopenaeus) vannamei 466 



role of coxal plates in retention of compound sper- 



matophore | 482 



SILLIMAN, RALPH P., "Effect of crowding on stock 



and catch in Tilapia mossambica" 685 



, "Experimental exploitation of competing 



fish populations" 872 



, "Selective and unselective exploitation of 



experimental populations of Tilapia mossambica" 495 



Simulation, dynamic 

 marine trophic interactions of fish species 695 



Skates 

 distribution and relative abundance of 



interspecific relationships 128 



Raja eglatiteria 114 



Raja erinacea 119 



Raja garmani 114 



Raja laevis 119 



Raja ocellata 121 



Raja radiata 125 



Raja senta 123 



SKILLMAN, ROBERT A.-see YONG and SKILLMAN 



SLATICK, EMIL, DONN L. PARK, and WESLEY J. 

 EBEL, "Further studies regarding effects of transpor- 

 tation on survival and homing of Snake River chinook 

 salmon and steelhead trout" 925 



SMAYDA, THEODORE J., "Net phytoplankton and the 

 greater than 20-micron phytoplankton size fraction in 

 upwelling waters off Baja California" 38 



SMIGIELSKI, ALPHONSE S., "Hormonal-induced 

 ovulation of the winter flounder, Pseudopleuronectes 

 americanus" 431 



Snake River 

 chinook salmon and steelhead trout 

 effects of transportation on survival and homing . . 925 



Sole, rock 

 southeastern Bering Sea, 1961 

 age-length-weight and distribution 919 



Sole, yellowfin 

 southeastern Bering Sea, 1961 

 age-length-weight and distribution 919 



"Spermatophores and thelyca of the American white 

 shrimps, genus Penaeus, subgenus Litopenaeus," by 

 Isabel Perez Farfante 463 



Spin-labeling techniques 



studying mode of action of petroleum hydrocarbons on 



marine organisms 



contaminant-host interaction 303 



fundamentals of spin-labeling 300 



future outlook 305 



membranes and their properties 302 



"Spin-labeling techniques for studying mode of action of 

 petroleum hydrocarbons on marine organisms," by 

 William T. Roubal and Tracy K. Collier 299 



Spot 

 general feeding ecology of postlarval fishes in Newport 

 River estuary 137 



Steam-electric station 

 impact of thermal effluent from, on marshland nursery 

 area during the hot season 67 



STOKES, ROBERT M.-see RICE et al. 



Sturgeon, Atlantic 

 differentiation of freshwater characteristics of fatty 

 acids in marine specimens 838 



SW ANSON, L. J., JR. -see HOUDE and SWANSON 



950 



