Heavy metal concentrations in fauna from hydrothermal fields of the Mid-Atlantic Ridge

Distributions of Fe, Mn, Zn, Cu, Ni, Co, Cr, Pb, As, Ag, Cd, Se, Sb, and Hg in 128 samples of tissues of organisms that inhabit hydrothermal vent fields of the Mid-Atlantic Ridge (Menez Gwen, Snake Pit, and Rainbow) depending on the abiotic environmental parameters were studied. The majority of the elements studied showed direct correlations between their concentrations in fluids released and in tissues of hydrothermal organisms. A higher degree of bioaccumulation of metals was revealed in Bathymodiolus mussels and Rimicaris shrimps from the Rainbow hydrothermal vent field as compared to their analogues from the Menez Gwen and Snake Pit fields. This corresponds to maximal concentrations of the majority of the metals studied in the Rainbow high-temperature hydrothermal fluids. The highest degree of bioaccumulation of heavy metals was found in gills of symbiotrophic mussels Bathymodiolus and in maxillipeds of ectosymbiotic shrimps Rimicaris, i.e., in organs that function in dependence on chemosynthetic bacteria. Within the Rainbow vent field, the shrimps, which inhabit in biotopes with more high-temperature conditions and therefore are more strongly subjected to influence of fluids, were found to contain higher metal contents than mollusks. Fe-Mn hydroxide films that cover mussel shells might serve as important reservoirs of other metals related to Fe and Mn.

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Demina, Lyudmila L, Galkin, Sergey V (2008). Dataset: Heavy metal concentrations in fauna from hydrothermal fields of the Mid-Atlantic Ridge. https://doi.org/10.1594/PANGAEA.727131

DOI retrieved: 2008

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.727131
Author Demina, Lyudmila L
Given Name Lyudmila L
Family Name Demina
More Authors
Galkin, Sergey V
Source Creation 2008
Publication Year 2008
Resource Type application/zip - filename: Demina-Galkin_2008
Subject Areas
Name: Oceans

Related Identifiers
Title: On the role of abiogenic factors in the bioaccumulation of heavy metals by the hydrothermal fauna of the Mid-Atlantic Ridge
Identifier: https://doi.org/10.1134/S0001437008060040
Type: DOI
Relation: IsSupplementTo
Year: 2008
Source: Oceanology
Authors: Demina Lyudmila L , Galkin Sergey V .