We have located the following chemosynthetic communities around Japan.Photographs from representative points

	1	Okushiri ridge, 3,100 m deep
	2	Kuril-Kamchatka trench, 5,100 - 5,800 m deep
	3	Japan trench, 5,600 - 6,500 m deep
	4	Kashima seamount, 5,600 m deep
	5	Sagami Bay （Off shore Hatsushima, 800 - 1,200 m deep 　Okinoyama bank, 1,000 -1,200 m deep 　Sagami knoll, 1,400 m deep 　Miura knoll, 900 - 1,000 m deep 　Misaki knoll, 800 m deep)
	6	Suruga Bay, depth 1,500 m
	7	Nankai trough （Kinsu shoal, 300 m deep 　Ryuyo valley, 1,100 m deep 　Sensu ridge, 4,000 m deep 　Tenryu valley, 3,800 m deep)
	8	Muroto knoll, 600 m deep
	9	Ashizuri knoll, 700 m deep
	10	Daiichi Minami Muroto knoll, 3,600 m
	11	Kagoshima Bay, 80 m deep
	12	Minami Ensei knoll, 650 - 750 m deep
	13	Iheya ridge, 1,000 - 1,400 m deep
	14	Izena caldron, 1,300 - 1,500 m deep
	15	Suiyo seamount, 1,400 m deep
	16	Mokuyo seamount, 1,400 m deep

17	Kaikei seamount, 400 - 800 m deep	20	South Mariana back-arc basin, 1,500 m deep
18	Nikko seamount, 450 m deep	21	Manus basin, 1,700 - 2,500 m deep
19	Central Mariana back-arc basin, 3,600 m deep
22	Torishima whale-carcass community, 4,000 m deep

| INDEX | The basics of a chemosynthetic ecosystem |
| The discovery of a chemosyntheticecosystem | Mid-and Deep-sea organisms |
| The Effect of a Giant Earthquake |