6.3 Control or Alteration of Chemical Features 

 of the Environment 



6.4 Control or Alteration of Biological Features 

 of the Environment 



6.5 Artificial Stocking 



No data on above mentioned items. 



7. POND FISH CULTURE 

 No data. 



LITERATURE CITED 



FISHERIES AGENCY OF JAPAN, RESEARCH DIVISION. 



1972. Annual report of effort and catch statistics by area on 

 Japanese tuna longline fishery, 1970. 326 p. 

 HOWARD, J. K., and S. UEYANAGI. 



1965. Distribution and relative abundance of billfishes 

 (Istiophoridae) of the Pacific Ocean. Univ. Miami Inst. 

 Mar. Sci., Stud. Trop. Oceanogr. 2, 134 p. 

 JUNE, F. C. 



1951. Note on the feeding habits of the giant white marlin 

 of the Pacific. Pac. Sci. 5:287. 



KOTO, T., I. FURUKAWA, and K. KODAMA. 



1959. Studies on the tuna long line fishery in the East 

 China Sea. IV. Ecological studies on the so-called white 

 marlin, Martina marlina (Jordan & Hill). [In Jap., Engl, 

 abstr.] Rep. Nankai Reg. Fish. Res. Lab. 11:108-129. 



KOTO, T., and K. KODAMA. 



1962. Some considerations on the growth of marlins, using 

 size-frequencies in commercial catches. II. Attempts to 

 estimate the growth of so-called white marlin, Marlina 

 marlina (J. and H.). [In Jap., Engl, abstr.] Rep. Nan- 

 kai Reg. Fish. Res. Lab. 15:109-126. 



LAMONTE, F., and D. E. MARCY. 



1941. Swordfish, sailfish, marlin and spearfish. Ichthyol. 

 Contrib. Int. Game Fish Assoc. l(2):l-24. 



MERRETT, N. R. 



1970. Gonad development in billfish (Istiophoridae) from 

 the Indian Ocean. J. Zool. (Lond.) 160:355-370. 



1971. Aspects of the biology of billfish (Istiophoridae) from 

 the equatorial western Indian Ocean. J. Zool. (Lond.) 

 163:351-395. 



MORITA, T. 



1952. On the relation between the yield of marlin and the 

 water temperature around the Uotsurizima. [In Jap., 

 Engl, summ.] Kagoshima Univ., Mem. Fac. Fish. 2(1): 

 15-19. 



1960. Fishing-ground constitutional studies on the white- 

 marlin, Marlina marlina JORDAN&HILL, over the East 

 China Sea — I. On the fishing-ground constitution occur- 

 ring with the seasonal change of the environment. [In 

 Jap., Engl, abstr.] Bull. Jap. Soc. Sci. Fish. 26:887-893. 



Table 3. — Annual estimates by major fishing grounds, of fishing effort in numbers of hooks and catch in 



numbers of black marlin, 1962-70 (Anonymous, 1972). 



26 



