Nearest vent, dearest friend: biodiversity of Tiancheng vent field reveals cross-ridge similarities in the Indian Ocean
Biodiversity of hydrothermal vents in the Indian Ocean, particularly those on the Southwest Indian Ridge (SWIR), are still relatively poorly understood. The Tiancheng field on the SWIR was initially reported with only a low-temperature diffuse flow venting area, but here we report two new active are...
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
The Royal Society
2020-03-01
|
| Series: | Royal Society Open Science |
| Subjects: | |
| Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.200110 |
| _version_ | 1818198517560115200 |
|---|---|
| author | Jin Sun Yadong Zhou Chong Chen Yick Hang Kwan Yanan Sun Xuyang Wang Lei Yang Ruiyan Zhang Tong Wei Yi Yang Lingyun Qu Chengjun Sun Pei-Yuan Qian |
| author_facet | Jin Sun Yadong Zhou Chong Chen Yick Hang Kwan Yanan Sun Xuyang Wang Lei Yang Ruiyan Zhang Tong Wei Yi Yang Lingyun Qu Chengjun Sun Pei-Yuan Qian |
| author_sort | Jin Sun |
| collection | DOAJ |
| description | Biodiversity of hydrothermal vents in the Indian Ocean, particularly those on the Southwest Indian Ridge (SWIR), are still relatively poorly understood. The Tiancheng field on the SWIR was initially reported with only a low-temperature diffuse flow venting area, but here we report two new active areas, including a chimney emitting high-temperature vent fluids. Biological sampling in these new sites doubled the known megafauna and macrofauna richness reported from Tiancheng. Significantly, we found several iconic species, such as the scaly-foot snail and the first Alviniconcha population on the SWIR. Tiancheng shares a high proportion of taxa with vents on the Central Indian Ridge (CIR) and lacks a number of key taxa that characterize other vents investigated so far on the SWIR. Population genetics of the scaly-foot snail confirmed this, as the Tiancheng population was clustered with populations from the CIR, showing low connectivity with the Longqi field. Unlike the previously examined populations, scales of the Tiancheng scaly-foot snail were coated in zinc sulfide, although this results only from precipitation. The close connection between Tiancheng and CIR vents indicates that the dispersal barrier for vent endemic species is not the Rodriguez Triple Junction as previously suggested but the transformation faults between Tiancheng and Longqi, warranting further studies on deep currents in this area to resolve the key barrier, which has important implications for biological conservation. |
| first_indexed | 2024-12-12T02:07:08Z |
| format | Article |
| id | doaj.art-3a30efb121c14a4eb74e446fd999e0e1 |
| institution | Directory Open Access Journal |
| issn | 2054-5703 |
| language | English |
| last_indexed | 2024-12-12T02:07:08Z |
| publishDate | 2020-03-01 |
| publisher | The Royal Society |
| record_format | Article |
| series | Royal Society Open Science |
| spelling | doaj.art-3a30efb121c14a4eb74e446fd999e0e12022-12-22T00:42:01ZengThe Royal SocietyRoyal Society Open Science2054-57032020-03-017310.1098/rsos.200110200110Nearest vent, dearest friend: biodiversity of Tiancheng vent field reveals cross-ridge similarities in the Indian OceanJin SunYadong ZhouChong ChenYick Hang KwanYanan SunXuyang WangLei YangRuiyan ZhangTong WeiYi YangLingyun QuChengjun SunPei-Yuan QianBiodiversity of hydrothermal vents in the Indian Ocean, particularly those on the Southwest Indian Ridge (SWIR), are still relatively poorly understood. The Tiancheng field on the SWIR was initially reported with only a low-temperature diffuse flow venting area, but here we report two new active areas, including a chimney emitting high-temperature vent fluids. Biological sampling in these new sites doubled the known megafauna and macrofauna richness reported from Tiancheng. Significantly, we found several iconic species, such as the scaly-foot snail and the first Alviniconcha population on the SWIR. Tiancheng shares a high proportion of taxa with vents on the Central Indian Ridge (CIR) and lacks a number of key taxa that characterize other vents investigated so far on the SWIR. Population genetics of the scaly-foot snail confirmed this, as the Tiancheng population was clustered with populations from the CIR, showing low connectivity with the Longqi field. Unlike the previously examined populations, scales of the Tiancheng scaly-foot snail were coated in zinc sulfide, although this results only from precipitation. The close connection between Tiancheng and CIR vents indicates that the dispersal barrier for vent endemic species is not the Rodriguez Triple Junction as previously suggested but the transformation faults between Tiancheng and Longqi, warranting further studies on deep currents in this area to resolve the key barrier, which has important implications for biological conservation.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.200110hydrothermal ventsouthwest indian ridgepopulation connectivityscaly-foot snailchrysomallon |
| spellingShingle | Jin Sun Yadong Zhou Chong Chen Yick Hang Kwan Yanan Sun Xuyang Wang Lei Yang Ruiyan Zhang Tong Wei Yi Yang Lingyun Qu Chengjun Sun Pei-Yuan Qian Nearest vent, dearest friend: biodiversity of Tiancheng vent field reveals cross-ridge similarities in the Indian Ocean Royal Society Open Science hydrothermal vent southwest indian ridge population connectivity scaly-foot snail chrysomallon |
| title | Nearest vent, dearest friend: biodiversity of Tiancheng vent field reveals cross-ridge similarities in the Indian Ocean |
| title_full | Nearest vent, dearest friend: biodiversity of Tiancheng vent field reveals cross-ridge similarities in the Indian Ocean |
| title_fullStr | Nearest vent, dearest friend: biodiversity of Tiancheng vent field reveals cross-ridge similarities in the Indian Ocean |
| title_full_unstemmed | Nearest vent, dearest friend: biodiversity of Tiancheng vent field reveals cross-ridge similarities in the Indian Ocean |
| title_short | Nearest vent, dearest friend: biodiversity of Tiancheng vent field reveals cross-ridge similarities in the Indian Ocean |
| title_sort | nearest vent dearest friend biodiversity of tiancheng vent field reveals cross ridge similarities in the indian ocean |
| topic | hydrothermal vent southwest indian ridge population connectivity scaly-foot snail chrysomallon |
| url | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.200110 |
| work_keys_str_mv | AT jinsun nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT yadongzhou nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT chongchen nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT yickhangkwan nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT yanansun nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT xuyangwang nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT leiyang nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT ruiyanzhang nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT tongwei nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT yiyang nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT lingyunqu nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT chengjunsun nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean AT peiyuanqian nearestventdearestfriendbiodiversityoftianchengventfieldrevealscrossridgesimilaritiesintheindianocean |