BIBLIOGRAPHY ON THE TUNAS 



213 



RUSSELL, F. S. — Continued 



used in Mediterranean and on coasts of 

 Spain, Portugal, and Africa). 



1936. Submarine illumination in relation to ani- 

 mal life. Rapp. Cons. Explor. Mer Copen- 

 hague 101(2) :l-8. [P] 



Thiouius thymius: effect of illumination 

 on migration. 



S.\itO, Munek.\zu. 



1937. Oceanographic investigations and tuna fish- 

 ing conditions in the Solomon Islands. Suisan 

 kenkyu shi 32(5) :260-271. [J] 



Oceanographic conditions in relation to 

 fishing; Pacific Ocean-southwest. 



Sakai, MorisabukO, and Michio Uno. 



1940. Tuna (maguro) fisheries and boats in Japan. 

 J. Imp. Fish. Exp. Sta. 10:1-37. [Je,P] 



Statistical study of 80 Japanese tuna long- 

 line boats : equipment, fishing gear, crews, 

 finances, fishing seasons and groimds. 



Samson, v. J. 



1940. Notes on the occurrence of albacore Germo 

 alalunga in the North Pacific. Copeia 1940 

 (4):271. 



Distributional note. 



Sanzo, L. 



1932. Uova e primi stadi larvali di tonne (Orcy- 

 nus thynmis Ltkn.). Mem. R. Com. Talass. 

 Ital. 189:16 p. [P] 



Spawning season in Mediterranean de- 

 duced from egg and larva collections; de- 

 scription and figures of mature ovarian 

 eggs and pelagic eggs; compared with 

 eggs of T. germo and Auxis; development, 

 measurements, description, and figures of 

 larvae at various stages. 



1933. Uova e primi stadi larvali di alalonga (Or- 

 cynus germo Ltkn.). Mem. R. Com. Talass. 

 Ital. 198:9 p. 



Spawning season in the Mediterranean 

 deduced from collections of eggs and lar- 

 vae; descriptions and figures of mature 

 eggs and developing embryos and larvae. 



Sasaki, takeo. 



1932. A consideration of albacore fishing condi- 

 tions and oceanographic conditions north of 

 Zunan. Rakusui 27(6) :9-ll. [J] 



Germo alalunga: fishing conditions in re- 

 lation to oceanography; Pacific Ocean- 

 northwest. 

 1939a. Oceanographic conditions and the skipjack 

 fishing grounds of the Northeastern Sea Area. 

 Miyagi Pref. Fish. Exp. Sta., 12 p. (In: Spec, 

 sci. Rep: Fish. U. S. Fish Wildl. 83). [P] 

 Katsuwoyius pelamis: migrations; fishing 

 conditions in relation to water tempera- 

 ture; Pacific Ocean-northwest. 



Sasaki, Takeo. — Continued 



1939b. Oceanographic conditions and the albacore 



grounds east of Cape Nojima. Miyagi Pref. 



Fish. Exp. Sta. 14 p. (In: Spec. sci. Rep: 



Fish. U. S. Fish Wildl. 77) . [P] 



Germo alalunga: fishing conditions re- 

 lated to water temperature; Pacific Ocean 

 — northwest; catch statistics; sizes and 

 putative age composition of fish in long- 

 line and livebait catch; migrations. 



Sasaki, takeo, and Isaku Takehisa. 



1932. A consideration of the skipjack fishery in 

 the Northeastern Sea Area in 1931. Rakusui 

 27(4):1-10. [J] 



Pacific Ocean — northwest; Katsuwonus 

 pelamis. 



Scagel, R. F. 



1949. Report on the investigation of albacore. 

 Circ. biol. stas. Nanaimo and Prince Rupert 

 17:23 p. [P] 



Thunnus alalunga: catch in relation to 

 oceanographic conditions in the northeast 

 Pacific; size composition of commercial 

 catch; stomach contents; tagging; body 

 temperature. 



SCHAEFER, MILNEE B. 



1948a. Morphometric characteristics and relative 

 growth of yellowfin tuna {Neothunnus macrop- 

 terus) from the Central Pacific. Pacif. Sci. 

 2(2):114-120. [P] 



Morphometric data; length-weight rela- 

 tion; growth; classification based on va- 

 riations in dorsal and anal fin length. 



1948b. Size composition of catches of yellowfin 

 tuna {NeothMunus macropterus) from Central 

 America, and their significance in the deter- 

 mination of growth, age, and schooling habits. 

 Fish. Bull., U. S. Fish Wildl. 51 (44) :197-200. 



[P] 



Size composition of commercial catch; 

 sexual maturity; age, growth; schoohng 

 habits; length-frequency data from mixed 

 school of skipjack and yellowfin tuna. 

 1948c. Spawning of Pacific tunas and its implica- 

 tions to the welfare of the Pacific tuna fish- 

 eries. Trans. N. Amer. Wildl. Conf. 13:366- 

 371. [P] 



Auxis sp., Euthynnus Uneatus, E. yaxto, 

 Katsuwonus pelamis, Neothunnus viacrop- 

 terus, Thunnus germo: Pacific Ocean, dis- 

 tribution; review of records and observa- 

 tions on spawning and juveniles; manage- 

 ment problem. 

 1951. Some recent advances in the study of the 

 biology and racial division of Pacific tunas. 

 Proc. Indo-Pacif. Fish. Coun. 2(2/3) :63-69. 



[P] 



Neothunnus macropterus, Thunnus germo, 



