|
|||||
|
|
Halophila ovalis (R. Br.) Hook. f. from a submarine hot spring in southern Japan |
|
| Authors: | John Kuo Takuro Shibuno Ziyusei Kanamoto Tadahide Noro |
| Institution: | a Centre for Microscopy and Microanalysis, The University of Western Australia, Nedlands, Western Australia 6907, Australia b Ishigaki Tropical Station, Seikai National Fisheries Research Institute,148-446 Fukai-Ohta, Ishigaki 907-0451, Japan c Center for Marine Environmental Studies (CMES), Ehime University, Nakajima, Ehime 791-4502 Japan d Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima 890-0056, Japan |
| Abstract: | Colonies of the seagrass Halophila ovalis are found growing adjacent to coral Acropora sp. and Seriatopora hystrix in a submarine hot spring (at 15.7 m depth, 28.6°C) at the north coast of Taketomi Island, near the southern tip of Japan. Halophila plants grow in sea water containing sulphide 930 μg S ml?1 and on the substratum with fine precipitates of the submarine hot spring which have sulphide content up to 5400 μg S g?1 DW. The accumulated sulphide concentration reaches as high as 8400 μg S g?1 DW in under ground tissues and 5700 μg S g?1 DW in above-ground tissues, respectively. It is suggested that, not the sulphide concentration but light and possibly water temperature are the limiting factors for the Halophila colonization in the submarine hot spring. |
| Keywords: | Halophila ovalis Seagrass Submarine hot spring High S content Japan |
| 本文献已被 ScienceDirect 等数据库收录！ | |