Trace metals in skeletal calcite of echinoderms from the Barents Sea.

Autor: Iglikowska A; Laboratory of Biosystematics and Ecology of Aquatic Invertebrates, Department of Evolutionary Genetics and Biosystematics, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland. Electronic address: anna.iglikowska@ug.edu.pl., Piwoni-Piórewicz A; Division of Marine Ecosystems Functioning, Faculty of Oceanography and Geography, University of Gdańsk, Marszałka Piłsudskiego 46, 81-378, Gdynia, Poland. Electronic address: ania.piwoni@gmail.com., Cieślik BM; Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland. Electronic address: bartlomiej.cieslik@pg.edu.pl., Żyłan D; Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland. Electronic address: zylandominika@gmail.com., Waszczuk P; Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland. Electronic address: patryk.waszczuk@wp.pl., Kukliński P; Marine Ecology Department, Institute of Oceanology Polish Academy of Sciences, Powstańców Warszawy 55, 81-712, Sopot, Poland. Electronic address: kuki@iopan.pl.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2024 Nov; Vol. 367, pp. 143635. Date of Electronic Publication: 2024 Nov 01.
DOI: 10.1016/j.chemosphere.2024.143635
Abstrakt: This study investigates the skeletal accumulation of selected elements (Al, Ag, As, Ca, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Na, Pb, Sr, Zn) in echinoderms inhabiting Barents Sea, an area impacted by human activities from northern Norway and Kola Peninsula, known sources of metal pollution. The primary aim was to have insight whether metals incorporation in the skeleton of Arctic echinoderms is regulated physiologically by the organism or influenced by abiotic environmental conditions (expressed as distance from the source of metal pollution). Metal concentrations were analysed in 17 species from four echinoderm classes: Asteroidea, Ophiuroidea, Crinoidea and Echinoidea. The results revealed species-specific accumulation patterns for most metals, indicating a strong biological control over metal incorporation. In crinoid Heliometra glacialis, a negative correlation between body size and skeletal concentrations of Al, Fe, Mg and Mn was observed. This correlation was ascribed to age-related metabolic traits and a likely mechanism for removing foreign metals from the skeletal calcite. The relationships between environmental factors and metal accumulation patterns were less clear. However, higher concentrations of Al, Fe, Mg, Mn and Pb were found in suspension feeders collected near glaciers, which were potential sources of suspended material. Asteroids exhibited particularly high concentrations of Cu, Fe, Cr, Hg compared to species from the other regions, suggesting that their calcified skeletons may serve as storage mechanisms to prevent toxic effects in other body parts. These observations confirm that biologically-mediated processes predominantly govern metal bioaccumulation in Arctic echinoderms.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: There are no interests to declare.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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