start-ver=1.4 cd-journal=joma no-vol=83 cd-vols= no-issue=4 article-no= start-page=841 end-page=848 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=20038 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Sulphur-isotopic composition of the deep-sea mussel Bathymodiolus marisindicus from currently active hydrothermal vents in the Indian Ocean en-subtitle= kn-subtitle= en-abstract= kn-abstract=

Sulphur-isotopic composition of soft tissues from bathymodiolus marisindicus collected from hydrothermal vents in the indian ocean was reported. the [delta]34s values of the soft tissues (+3[similar]+5 vs ca?yon diablo troilite) were nearly identical to those from the associated hydrothermal fluid and chimney sulphides (+5 to +8), but were significantly different from that of the common seawater sulphate (+21), which suggested that the endosymbiotic bacteria used sulphide in the fluid as an energy source. transmission electron microscopic observation of the endosymbionts also suggested that the symbiont is a thioautotroph. bathymodiolus species, which depend on either sulphide or methane oxidation, or both, have a worldwide distribution. bathymodiolus marisindicus from the indian ocean has a close relationship with congeners in the pacific ocean as evidenced by form of symbiosis. biogeography and migration of the genus bathymodiolus based on the relevant data are briefly discussed.

en-copyright= kn-copyright= en-aut-name=YamanakaToshiro en-aut-sei=Yamanaka en-aut-mei=Toshiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=MizotaChitoshi en-aut-sei=Mizota en-aut-mei=Chitoshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=FujiwaraYoshihiro en-aut-sei=Fujiwara en-aut-mei=Yoshihiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=ChibaHitoshi en-aut-sei=Chiba en-aut-mei=Hitoshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=HashimotoJun en-aut-sei=Hashimoto en-aut-mei=Jun kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=GamoToshitaka en-aut-sei=Gamo en-aut-mei=Toshitaka kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=OkudairaTakamoto en-aut-sei=Okudaira en-aut-mei=Takamoto kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= affil-num=1 en-affil= kn-affil=University of Tsukuba affil-num=2 en-affil= kn-affil=Iwate University affil-num=3 en-affil= kn-affil=Japan Marine Science and Technology Center affil-num=4 en-affil= kn-affil=Okayama University affil-num=5 en-affil= kn-affil=Japan Marine Science and Technology Center, Tokyou affil-num=6 en-affil= kn-affil=Hokkaido University affil-num=7 en-affil= kn-affil=Osaka City University END