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Tytuł:
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Tissue and gender-related differences in the elemental composition of juvenile ocean sunfish (Mola spp.).
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Autorzy:
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Baptista M; MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora Do Cabo, 939, 2750-374, Cascais, Portugal; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute of the Sea and Atmosphere, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIBIO/InBIO, Universidade Do Porto, Campus Agrário de Vairão, 4485-661, Vairão, Portugal. Electronic address: .
Figueiredo C; MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora Do Cabo, 939, 2750-374, Cascais, Portugal; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute of the Sea and Atmosphere, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal. Electronic address: .
Azevedo OM; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute of the Sea and Atmosphere, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal. Electronic address: .
Pina Rodrigues MT; Independent Researchers, Portugal. Electronic address: .
Costa T; Independent Researchers, Portugal. Electronic address: tania_filipa_.
Santos MT; Division of Aquaculture and Seafood Upgrading, IPMA - Portuguese Institute of the Sea and Atmosphere, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal. Electronic address: .
Queiroz N; CIBIO/InBIO, Universidade Do Porto, Campus Agrário de Vairão, 4485-661, Vairão, Portugal. Electronic address: .
Rosa R; MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora Do Cabo, 939, 2750-374, Cascais, Portugal. Electronic address: .
Raimundo J; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute of the Sea and Atmosphere, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal. Electronic address: .
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Źródło:
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Chemosphere [Chemosphere] 2021 Jun; Vol. 272, pp. 129131. Date of Electronic Publication: 2020 Dec 13.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: Oxford : Elsevier Science Ltd
Original Publication: Oxford, New York, : Pergamon Press.
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MeSH Terms:
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Tetraodontiformes*
Trace Elements*/analysis
Water Pollutants, Chemical*/analysis
Animals ; Bioaccumulation ; Environmental Monitoring ; Gonads ; Oceans and Seas
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Contributed Indexing:
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Keywords: Body tissues; Gender differences; Mola spp.; Muscle type differences; Ocean sunfish; Trace element composition
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Substance Nomenclature:
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0 (Trace Elements)
0 (Water Pollutants, Chemical)
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Entry Date(s):
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Date Created: 20210216 Date Completed: 20210406 Latest Revision: 20210406
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Update Code:
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20240104
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DOI:
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10.1016/j.chemosphere.2020.129131
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PMID:
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33592516
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Trace elements are potentially critical contaminants of aquatic environments and fish, occupying upper trophic levels, are especially vulnerable to bioaccumulation. Due to public health concerns, however, data on the elemental composition of non-commercially important marine species are particularly lacking. Ocean sunfish (Mola spp.) attain a low commercial value worldwide and information on their elemental composition is limited. In this context, we examined the concentration of 11 trace elements (V, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Cd and Pb) in eight tissues [brain, gills, gelatin (subcutaneous white gelatinous layer), gonads, spleen, liver, white muscle and red muscle] of 20 juvenile specimens (37.5-85.5 cm TL). Gender-related differences were solely found in the gonads and chiefly for essential elements possibly as a result of their importance in embryo development. Overall, Zn and As were the elements observed in greatest concentrations in body tissues. The considerably high presence of As should be related to the dietary preferences of juvenile ocean sunfish. Considerable inter-individual variability in the concentration of each element in any given tissue was observed, especially in the liver, likely originating from the inclusion of both benthic and pelagic prey in the diet of analysed fish. Greatest elemental loads were found in the liver and gills whereas lowest loads were observed in white muscle, brain and gelatin. Moreover, a clear distinction in elemental load and elemental composition was observed between white and red muscles, likely deriving from existing divergent metabolism-related physiological adaptations linked to their different roles in locomotion.
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.
(Copyright © 2020. Published by Elsevier Ltd.)
