FN Archimer Export Format
PT J
TI Earthquake and typhoon trigger unprecedented transient shifts in shallow hydrothermal vents biogeochemistry
BT 
AF LEBRATO, Mario
   WANG, Yiming V.
   TSENG, Li-Chun
   ACHTERBERG, Eric P.
   CHEN, Xue-Gang
   MOLINERO, Juan-Carlos
   BREMER, Karen
   WESTERNSTROEER, Ulrike
   SOEDING, Emanuel
   DAHMS, Hans-Uwe
   KUETER, Marie
   HEINATH, Verena
   JOEHNCK, Janika
   KONSTANTINOU, Kostas I.
   YANG, Yiing J.
   HWANG, Jiang-Shiou
   GARBE-SCHOENBERG, Dieter
AS 1:1,2;2:1,3;3:4;4:5;5:6;6:1,7;7:1;8:1;9:1;10:8;11:1;12:1;13:1;14:9;15:10;16:4;17:1,11;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:;
C1 Kiel Univ CAU, Inst Geosci, Kiel, Germany.
   BCSS, Benguerra Isl, Mozambique.
   Max Planck Inst Sci Human Hist, Jena, Germany.
   Natl Taiwan Ocean Univ, Keelung, Taiwan.
   GEOMAR Helmholtz Ctr Ocean Res Kiel, Kiel, Germany.
   Zhejiang Univ, Ocean Coll, Zhoushan City, Peoples R China.
   Univ Montpellier, Marine Biodivers Exploitat & Conservat MARBEC, CNRS, IRD,IFREMER, Montpellier, France.
   Kaohsiung Med Univ, Kaohsiung, Taiwan.
   Natl Cent Univ, Taoyuan, Taiwan.
   Natl Taiwan Univ, Taipei, Taiwan.
   Jacobs Univ Bremen gGmbH, Bremen, Germany.
C2 UNIV KIEL, GERMANY
   BCSS, MOZAMBIQUE
   MAX PLANCK INST SCI HUMAN HIST, GERMANY
   UNIV NATL TAIWAN OCEAN NTOU, TAIWAN
   IFM GEOMAR, GERMANY
   UNIV ZHEJIANG, CHINA
   IRD, FRANCE
   UNIV KAOHSIUNG, TAIWAN
   UNIV NATL CENT NCU, TAIWAN
   UNIV NATL TAIWAN NTU, TAIWAN
   UNIV JACOBS BREMEN, GERMANY
UM MARBEC
IN WOS Cotutelle UMR
   DOAJ
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 3.998
TC 15
UR https://archimer.ifremer.fr/doc/00593/70518/68670.pdf
   https://archimer.ifremer.fr/doc/00593/70518/68671.pdf
   https://archimer.ifremer.fr/doc/00593/70518/68672.xlsx
   https://archimer.ifremer.fr/doc/00593/70518/68673.xlsx
LA English
DT Article
AB Shallow hydrothermal vents are of pivotal relevance for ocean biogeochemical cycles, including seawater dissolved heavy metals and trace elements as well as the carbonate system balance. The Kueishan Tao (KST) stratovolcano off Taiwan is associated with numerous hydrothermal vents emitting warm sulfur-rich fluids at so-called White Vents (WV) and Yellow Vent (YV) that impact the surrounding seawater masses and habitats. The morphological and biogeochemical consequences caused by a M5.8 earthquake and a C5 typhoon ("Nepartak") hitting KST (12th May, and 2nd-10th July, 2016) were studied within a 10-year time series (2009-2018) combining aerial drone imagery, technical diving, and hydrographic surveys. The catastrophic disturbances triggered landslides that reshaped the shoreline, burying the seabed and, as a consequence, native sulfur accretions that were abundant on the seafloor disappeared. A significant reduction in venting activity and fluid flow was observed at the high-temperatureYV. Dissolved Inorganic Carbon (DIC) maxima in surrounding seawater reached 3000-5000 mu mol kg(-1), and Total Alkalinity (TA) drawdowns were below 1500-1000 mu mol kg(-1) lasting for one year. A strong decrease and, in some cases, depletion of dissolved elements (Cd, Ba, Tl, Pb, Fe, Cu, As) including Mg and Cl in seawater from shallow depths to the open ocean followed the disturbance, with a recovery of Mg and Cl to pre-disturbance concentrations in 2018. The WV and YV benthic megafauna exhibited mixed responses in their skeleton Mg:Ca and Sr:Ca ratios, not always following directions of seawater chemical changes. Over 70% of the organisms increased skeleton Mg:Ca ratio during rising DIC (higher CO2) despite decreasing seawater Mg:Ca ratios showing a high level of resilience. KST benthic organisms have historically co-existed with such events providing them ecological advantages under extreme conditions. The sudden and catastrophic changes observed at the KST site profoundly reshaped biogeochemical processes in shallow and offshore waters for one year, but they remained transient in nature, with a possible recovery of the system within two years.
PY 2019
PD NOV
SO Scientific Reports
SN 2045-2322
PU Nature Publishing Group
VL 9
IS 16926
UT 000496716800010
DI 10.1038/s41598-019-53314-y
ID 70518
ER

EF