constant total gas pressure and different oxygen-ni- 

 trogen ratios" ^1^ 



RYBOCK, J. T., H. F. HORTON, and J. L. FESSLER, 

 "Use of otoliths to separate juvenile steelhead trout from 

 juvenile rainbow trout" 654 



Sagitta hispida 



production in south Florida inshore waters 



analysis of samples 239 



conversion of raw data to other units 241 



growth rates 241 



problems of measuring growth rate 245 



production calculation 242 



production comparisons 246 



sampling methods 238 



seasonal changes 243 



study site 238 



St. Johns River, Florida 68 



Salmo gairdneri-see Trout, rainbow; Trout, steelhead 



Salmon 

 Pacific fry 

 comparative vulnerability to predation by torrent 

 sculpin in stream aquaria 931 



Salmon, cherry 

 hatching survival of hybrids with 



North American species of Oncorhynchus 447 



Salmo gairdneri 447 



Salmon, chinook 

 effects of various concentrations of atmospheric gas on 

 effects of oxygen concentrations on time to death 



measurements '^90 



effect of supersaturation stress on growth 791 



effect of supersaturation stress on survivors 793 



progression of gas bubble disease 792 



recovery from gas bubble disease 793 



relationships among mortality, exposure time, and 



gas concentration 790 



evaluation of return of adults to Abernathy incubation 



channel 



migrants from Abernathy Creek 357 



migrants from incubation channel 357 



releases of hatchery fingerlings 357 



returns from Abernathy Creek 358 



returns from Abernathy Incubation Channel 358 



returns from hatchery-reared fingerlings 358 



treatment of adults 357 



gas-bubble disease 

 heritable resistance for fall 934 



Snake River 

 effects of transportation on survival and homing . . 925 



Salmon, chum 



zooplankton abundance and feeding habits of fry in 



Traitors Cove, Alaska 



carrying capacity of Traitors Cove 857 



feeding in the estuary 849 



feeding in Traitors River 849 



food selection 856 



grazing rate 856 



initiation of feeding 854 



zooplankton abundance and distribution 853 



Salmon, coho 



Columbia River 

 homing behavior and contribution to 717 



gas-bubble disease 



mortalities in water with constant gas pressure and 

 different oxygen-nitrogen ratios 915 



Salmon, pink 



zooplankton abundance and feeding habits of fry in 



Traitors Cove, Alaska 



carrying capacity of Traitors Cove 856 



feeding in the estuary 849 



feeding in Traitors River 849 



food selection 856 



grazing rate 856 



initiation of feeding 854 



zooplankton abundance and distribution 853 



Samoa, American 

 longline fishery, 1966-71 747 



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 



Santa Barbara, California 

 kelp forests off 



food, activity, and habitat of three microcarnivorous 



fishes in 815 



Sardina pilchardus-see Sardine 



Sardine 

 concentration of mercury, copper, nickel, silver, cad- 

 niium, and lead in 193 



Scomber scombrus-see Mackerel, Atlantic 



Sculpin, torrent 

 in stream aquaria 



comparative vulnerability of fry of Pacific salmon 



and steelhead trout to predation by 931 



Sea otter 

 Amchitka Island, Alaska 

 experimental studies of algal canopy interactions in 

 a kelp community 230 



Seaperch, white 

 food, activity, and habitat in kelp forests off California 



activity 821 



food 818 



habitat 823 



overlap with other species 824 



resource breadth 823 



"Selective and unselective exploitation of experimental 

 populations of Tilapia mossambica," by Ralph P. 

 Silliman 495 



Senorita 

 food, activity, and habitat in kelp forests off California 



activity ... 821 



food 818 



habitat 823 



overlap with other species 824 



resource breadth 823 



949 



