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Species and element-specific associations of trace elements with body size in mesopelagic fish and crustaceans from the North-East Atlantic.

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Název: Species and element-specific associations of trace elements with body size in mesopelagic fish and crustaceans from the North-East Atlantic.
Autoři: Wiech M; Institute of Marine Research, Bergen, Norway. Electronic address: Martin.Wiech@hi.no., García-Seoane E; Institute of Marine Research, Bergen, Norway; Møreforsking AS, Borgundvegen 340, 6009, Ålesund, Norway., Zhu Y; Institute of Marine Research, Bergen, Norway., Fuglås MCV; Institute of Marine Research, Bergen, Norway., Petersen SW; Institute of Marine Research, Bergen, Norway., Øyan S; Institute of Marine Research, Bergen, Norway., Berntssen MHG; Institute of Marine Research, Bergen, Norway., Gautam N; Institute of Marine Research, Bergen, Norway., Prabhu Philip AJ; Institute of Marine Research, Bergen, Norway; Nutrition and feed technology Department, Nofima, Fyllingsdalen, 5141, Bergen, Norway., Azad AM; Institute of Marine Research, Bergen, Norway; Hormone Laboratory Research Group, Department of Clinical Science, University of Bergen, Norway.
Zdroj: Environmental research [Environ Res] 2025 Nov 01; Vol. 284, pp. 122228. Date of Electronic Publication: 2025 Jun 24.
Způsob vydávání: Journal Article
Jazyk: English
Informace o časopise: Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0147621 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1096-0953 (Electronic) Linking ISSN: 00139351 NLM ISO Abbreviation: Environ Res Subsets: MEDLINE
Imprint Name(s): Publication: <2000- > : Amsterdam : Elsevier
Original Publication: New York, Academic Press.
Výrazy ze slovníku MeSH: Body Size* , Trace Elements*/metabolism , Trace Elements*/analysis , Water Pollutants, Chemical*/metabolism , Water Pollutants, Chemical*/analysis , Fishes*/metabolism , Environmental Monitoring* , Crustacea*, Animals ; Atlantic Ocean ; Species Specificity
Abstrakt: Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
We explored the association between standard body length and whole-body element concentrations of As, Cd, Cu, Fe, Hg, Mn, Se, V, and Zn in four common mesopelagic species collected from fjord and offshore locations of the North-East Atlantic. These included Silvery lightfish (Maurolicus muelleri), Glacier lanternfish (Benthosema glaciale), Northern krill (Meganyctiphanes norvegica), and Arctic red prawn (Eusergeses arcticus), and a large size-range was covered for each species. We found that the concentrations of most elements changed with size in the fish species and E. arcticus, and to a lesser degree in M. norvegica, likely due to its large growth variability which might have blurred the accumulation and dilution patterns. For the fjord samples, more elements were significantly associated with body length than for the offshore samples. Essential elements were mostly showing significant decreases in concentration with body size and growth dilution was suggested to be an important factor; however, further research is advised. For M. muelleri, Hg concentrations and δ 15 N increased with size, while for B. glaciale, neither Hg concentrations nor δ 15 N clearly increased with size in offshore locations, suggesting an association between Hg concentrations and trophic position. Regarding food safety, Cd concentrations might be of concern for direct consumption of whole individuals for M. muelleri and B. glaciale caught in offshore locations, as more than half of the individuals, meaning the smallest ones, exceeded the European legal maximum level. Our findings provide useful information on nutritional content and safety of these species as food and feed, and on their role in element cycling.
(Copyright © 2025 The Authors. Published by Elsevier Inc. All rights reserved.)
Contributed Indexing: Keywords: Metals; Mid-water fish; Mueller's pearlside; Size; Stable isotopes; Twilight zone; Viscero-somatic index
Substance Nomenclature: 0 (Trace Elements)
0 (Water Pollutants, Chemical)
Entry Date(s): Date Created: 20250626 Date Completed: 20250925 Latest Revision: 20250925
Update Code: 20250926
DOI: 10.1016/j.envres.2025.122228
PMID: 40571081
Databáze: MEDLINE
Popis
Abstrakt:Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br />We explored the association between standard body length and whole-body element concentrations of As, Cd, Cu, Fe, Hg, Mn, Se, V, and Zn in four common mesopelagic species collected from fjord and offshore locations of the North-East Atlantic. These included Silvery lightfish (Maurolicus muelleri), Glacier lanternfish (Benthosema glaciale), Northern krill (Meganyctiphanes norvegica), and Arctic red prawn (Eusergeses arcticus), and a large size-range was covered for each species. We found that the concentrations of most elements changed with size in the fish species and E. arcticus, and to a lesser degree in M. norvegica, likely due to its large growth variability which might have blurred the accumulation and dilution patterns. For the fjord samples, more elements were significantly associated with body length than for the offshore samples. Essential elements were mostly showing significant decreases in concentration with body size and growth dilution was suggested to be an important factor; however, further research is advised. For M. muelleri, Hg concentrations and δ <sup>15</sup> N increased with size, while for B. glaciale, neither Hg concentrations nor δ <sup>15</sup> N clearly increased with size in offshore locations, suggesting an association between Hg concentrations and trophic position. Regarding food safety, Cd concentrations might be of concern for direct consumption of whole individuals for M. muelleri and B. glaciale caught in offshore locations, as more than half of the individuals, meaning the smallest ones, exceeded the European legal maximum level. Our findings provide useful information on nutritional content and safety of these species as food and feed, and on their role in element cycling.<br /> (Copyright © 2025 The Authors. Published by Elsevier Inc. All rights reserved.)
ISSN:1096-0953
DOI:10.1016/j.envres.2025.122228