Subjects 



XYZ 



Xiphopenaeus kroyeri (See Shrimp, seabob). 



Yeast, torula, trout diets. PFC v. 14, no. 1 



Yeast and penicillin mat (See Fishes-food). 



Yellow bullhead, description. FL 133 



Yellow perch: 



age, growth, and production in Lake 

 Erie. FB 70 



artificial propagation. Doc 1018 



description. Doc 904 



Yellowfin, research vessel (See Vessels, 

 fishing and research). 



Yellowfin tuna (See also Tuna): 



age and growth, estimation of. FB 65; 

 SSR-F 21 



biology. FB 44 



canning. FL 82; RR 7 



description. SSR-F 104 



food habits. SSR-F 21 



juveniles, description. FB 44 



longline catches, variability of. SSR-F 119 



of Angola, and tunas of the Pacific coast 

 of Central America, a biometric 

 comparison. FB 56 



of Hawaiian waters, and American west 

 coast; comparison. FB 72 



of the central Pacific; food of. FB 81 



of the Pacific coast of Central America; 

 post larvae. FB 63 



spawning. FB 44 , 77 



stocks in Japanese waters. SSR-F 16 



Tahiti. Sep 358 

 Yellowstone National Park; 



fishes of. Doc 904 

 Yellowtail: 



canned as tuna. FL 82, RR 7 



description. SSR-F 104 



Zoarces anguillaris (See Ocean pout). 

 Zooplankton (See Plankton). 



Zuiho Maru, research vessel (See Vessels, 

 fishing and research). 



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