scholarly journals CHARACTERISTICS OF TIDAL CURRENTS IN THE EAST SEA OF ISHIGAKI ISLAND, SOUTHWEST JAPAN

2004 ◽  
Vol 20 ◽  
pp. 647-652
Author(s):  
S. M. B. RAHAMANI ◽  
Eizo NAKAZA ◽  
Seikoh TSUKAYAMA ◽  
Yasushi KITAMURA
Keyword(s):  
Tidal Currents ◽  
East Sea ◽  
Southwest Japan ◽  
Ishigaki Island

Water circulation in a fringing reef located in a monsoon area: Kabira Reef, Ishigaki Island, Southwest Japan

Coral Reefs ◽  
1998 ◽  
Vol 17 (1) ◽  
pp. 89-99 ◽  
Author(s):  
H. Yamano ◽  
H. Kayanne ◽  
N. Yonekura ◽  
H. Nakamura ◽  
K. Kudo
Keyword(s):  
Water Circulation ◽  
Southwest Japan ◽  
Fringing Reef ◽  
Ishigaki Island ◽  
Monsoon Area

scholarly journals Discovery of a large population of Heliopora coerulea at Akaishi Reef, Ishigaki Island, southwest Japan

2010 ◽  
Vol 12 (2) ◽  
pp. 85-86 ◽  
Author(s):  
Tsutomu TAKINO ◽  
Atsushi WATANABE ◽  
Shunsuke MOTOOKA ◽  
Kazuo NADAOKA ◽  
Nina YASUDA ◽  
...  
Keyword(s):  
Large Population ◽  
Southwest Japan ◽  
Ishigaki Island

scholarly journals Coral Reef Evolution at the Leeward Side of Ishigaki Island, Southwest Japan

Radiocarbon ◽  
2001 ◽  
Vol 43 (2B) ◽  
pp. 899-908 ◽  
Author(s):  
Hiroya Yamano ◽  
Osamu Abe ◽  
Hiroyuki Kitagawa ◽  
Etsuko Niu ◽  
Toshio Nakamura
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Leeward Side ◽  
Ryukyu Islands ◽  
Accumulation Rates ◽  
Southwest Japan ◽  
Reef Facies ◽  
Carbon 14 ◽  
Ishigaki Island ◽  
Reef Evolution

In comparison with windward coral reefs, the facies and evolution of leeward coral reefs has been discussed to a lesser extent. By accelerator mass spectrometry (AMS) carbon-14 dating of coral specimens collected from the trench excavated across a modern coral reef during a fishery port repair, we revealed the internal facies and Holocene evolution of a leeward reef in Ishigaki Island, Ryukyu Islands, southwest Japan. The reef facies can be split into three facies: the tabular Acropora framework facies, the tabular Acropora reworked facies, and the unconsolidated bioclast facies. The tabular Acropora reworked facies first formed a ridge by 3500 BR Then, the tabular Acropora framework facies grew both upward and seaward. The accumulation rates of the tabular Acropora framework facies ranged from 2.2 to 8.3 m/ka. Thus, the reef framework facies and accumulation rates of this leeward reef is similar to those of windward reefs, although the age of the reef top is younger than that of windward reefs.

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