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Multi-isotopic composition of brown crab (Cancer pagurus) and seafloor sediment from a mine tailing sea disposal impacted fjord ecosystem
Institute of Marine Research, Bergen, Norway; University of Massachusetts Amherst, Amherst, MA, USA.
Institute of Marine Research, Bergen, Norway.
Institute of Marine Research, Bergen, Norway.
Institute of Marine Research, Bergen, Norway.
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2024 (English)In: Journal of Hazardous Materials, ISSN 0304-3894, E-ISSN 1873-3336, Vol. 471, article id 134406Article in journal (Refereed) Published
Abstract [en]

Here we studied accumulation of heavy metals in brown crab (Cancer pagurus) and seafloor sediment from Jøssingfjord, Norway during 2018 to evaluate long-term, legacy pollution effects of coastal mine tailing sea disposal activities. Nickel and copper sediment pollution in the mine tailing sea disposal area was classified as moderate and severe, respectively, under Norwegian environmental quality standards, and highlights the persistent hazard and legacy impacts of heavy metals in these impacted fjord ecosystems. Mercury, zinc, and arsenic had stronger affinities to brown crab muscle likely due to the presence of thiols, and availability of metal binding sites. Our multi-isotopic composition data showed that lead isotopes were the most useful source apportionment tool for this fjord. Overall, our study highlights the importance and value of measuring several different heavy metals and multiple isotopic signatures in different crab organs and seafloor sediment to comprehensively evaluate fjord pollution and kinetic uptake dynamics. Brown crabs were suitable eco-indicators of benthic ecosystem heavy metal pollution in a fjord ecosystem still experiencing short- and long-term physical and chemical impacts from coastal mining sea disposal activities.

Place, publisher, year, edition, pages
Elsevier, 2024. Vol. 471, article id 134406
Keywords [en]
Crab, Fjords, Heavy metals, Mining impacts, Sea disposal
National Category
Environmental Sciences
Research subject
Applied Geochemistry
Identifiers
URN: urn:nbn:se:ltu:diva-105343DOI: 10.1016/j.jhazmat.2024.134406Scopus ID: 2-s2.0-85191415653OAI: oai:DiVA.org:ltu-105343DiVA, id: diva2:1856596
Funder
EU, Horizon 2020, 101007962
Note

Validerad;2024;Nivå 2;2024-05-06 (hanlid);

Funder: Institute of Marine Research (15625, 15494); Norwegian Food Safety Authority;

Full text license: CC BY

Available from: 2024-05-07 Created: 2024-05-07 Last updated: 2024-05-07Bibliographically approved

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Rodushkin, Ilia

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