516 EIGHTH PACIFIC SCIENCE CONGRESS 



(Session temporarily suspended at 10:35 to enable members to 

 attend showing of Dr. Woodcock's film on "Bursting of Spherical Bub- 

 bles on Sea Water Surface" at the Liberal Arts Theater, University of the 

 Philippines. Session resumed at 3:35 P.M.) 



21. "On the Minimum Oxygen Layer in the North Pacific Ocean" 

 by Takeo Kawamoto, Kobe Marine Observatory, Japan. Read by Y. 

 Miyake. 



22. "A Study on the Property of the Coastal Water Around Hachijo 

 Islands" by Y. Miyake, Y. Sugiura, and K. Kameda, Meteorological Re- 

 search Institute, Tokyo, Japan. Read by Y. Miyake. 



Discussion 



Uda— What causes the diurnal variation in oxygen, salinity, and sili- 

 cates? 



Miyake— Phytoplankton for the oxygen, and tides and large horizontal 

 disturbances for the silicates and chlorinity. 



23. "On the Oceanographical Conditions of the Sea near the Fixed 

 Point 153°E, 39°N, in the North Pacific Ocean" by M. Nakano, M. Koi- 

 zumi and J. Fukuoka, Central Meteorological Observatory of Japan, 

 Tokyo, Japan. 



24. "Distribution of Copper and Zinc in Sea Water" by Yoshirai 

 Morita, Faculty of Science, Nagoya University, Japan. Read by Y. Mi- 

 yake. 



25. "Abnormal Summers in the Peruvian Coastal Current" by Er- 

 win Schweigger, Compania Administradora del Guano, Lima, Peru. 

 Read by Dr. Lovell. 



Discussio7i 



Woodcock— Are there very marked and significant meteorological occur- 

 rences in the region of upwelling? 



Lovell— Yes, also violent electrical storms and abnormal change of wind. 



HiDAKA— What is the size of the gyro? 



Lovell— len to fifty or sixty miles, depending upon the area. 



Uda— Is there upwelling all along the coast? 



Lovell— No. There are certain local regions where upwelling is not 

 appreciable. 



HiYAMA— What relationships exist with the sardine fishing grounds? 



Lovell— Sardines in general abound all along the coast where you have 

 the coolest water. Areas of upwelling have more sardines than any 

 other. As for the tunas, skipjacks are found in more oceanic 

 (warmer) waters, 17°-18°C and yellowfins in the margins of warm 

 water intrusion, about 16°C. 



