TY - JOUR
T1 - Intertidal geothermal hot springs as a source of trace elements to the coastal zone
T2 - A case study from Bahía Concepción, Gulf of California
AU - Leal-Acosta, María Luisa
AU - Shumilin, Evgueni
AU - Mirlean, Nicolai
AU - Baturina, Elena Lounejeva
AU - Sánchez-Rodríguez, Ignacio
AU - Delgadillo-Hinojosa, Francisco
AU - Borges-Souza, José
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/3
Y1 - 2018/3
N2 - We investigated the influence of the intertidal geothermal hot spring (GHS) on the biogeochemistry of trace elements in Santispac Bight, Bahía Concepción (Gulf of California). The geothermal fluids were enriched in As and Hg mainly in ionic form. The suspended particulate matter of the GHS had elevated enrichment factor (EF) > 1 of As, Bi, Cd, Co, Cu, Mn, Mo, Sb, Sn, Sr, Ti, U and Zn. The sediment core from GHS1 had high concentration of As, Hg, Corg, S, V, Mo, and U and the extremely high EF of these elements at 8 cm of the core. The maximum bioaccumulation of As and Hg was in seaweeds Sargassum sinicola collected near the GHS2. The results confirm the input of trace elements to the coastal zone in Bahía Concepción from geothermal fluids and the evident modification of the chemical composition of the adjacent marine environment.
AB - We investigated the influence of the intertidal geothermal hot spring (GHS) on the biogeochemistry of trace elements in Santispac Bight, Bahía Concepción (Gulf of California). The geothermal fluids were enriched in As and Hg mainly in ionic form. The suspended particulate matter of the GHS had elevated enrichment factor (EF) > 1 of As, Bi, Cd, Co, Cu, Mn, Mo, Sb, Sn, Sr, Ti, U and Zn. The sediment core from GHS1 had high concentration of As, Hg, Corg, S, V, Mo, and U and the extremely high EF of these elements at 8 cm of the core. The maximum bioaccumulation of As and Hg was in seaweeds Sargassum sinicola collected near the GHS2. The results confirm the input of trace elements to the coastal zone in Bahía Concepción from geothermal fluids and the evident modification of the chemical composition of the adjacent marine environment.
KW - Coastal zone
KW - Gulf of California
KW - Intertidal geothermal hot spring
KW - Potentially toxic elements
UR - http://www.scopus.com/inward/record.url?scp=85044670374&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2018.01.007
DO - 10.1016/j.marpolbul.2018.01.007
M3 - Artículo
C2 - 29571403
SN - 0025-326X
VL - 128
SP - 51
EP - 64
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
ER -
