TY - JOUR
T1 - Trace elements in the silky shark Carcharhinus falciformis in the Central Pacific Mexican Shelf
AU - Vega-Barba, Christian
AU - Páez-Osuna, Federico
AU - Galván-Magaña, Felipe
AU - Baró-Camarasa, Isis
AU - Aguilar-Palomino, Bernabé
AU - Galván-Piña, Víctor Hugo
AU - Marmolejo-Rodríguez, Ana J.
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/12
Y1 - 2022/12
N2 - Mercury (Hg), cadmium (Cd) and copper (Cu) concentrations were determined in muscle, liver and fin of the silky shark (Carcharhinus falciformis) caught in the Central Pacific Mexican Shelf. Liver tissue presented the highest concentrations of Cd (2.83 μg g−1 wet weight (ww)) and Cu (2.34 μg g−1 ww). For muscle and fin, Cu presented the highest concentrations (0.97 and 1.80 μg g−1 ww, respectively). Liver concentrations were influenced by the maturation stages for the three elements. Immature organisms exhibited lower trace element concentrations than adults. No significant differences were found between sexes, except for Cu concentrations in muscle, where adult females present higher levels than adult males. One muscle sample (2.3 %) exceeded the Mexican Legislation for Hg (1.0 μg g−1 ww) and five muscles samples (11.6 %) exceeded the Mexican limit for Cd (0.5 μg g−1 ww). Meat consumption of this species can be a risk to human health if it is ingested regularly.
AB - Mercury (Hg), cadmium (Cd) and copper (Cu) concentrations were determined in muscle, liver and fin of the silky shark (Carcharhinus falciformis) caught in the Central Pacific Mexican Shelf. Liver tissue presented the highest concentrations of Cd (2.83 μg g−1 wet weight (ww)) and Cu (2.34 μg g−1 ww). For muscle and fin, Cu presented the highest concentrations (0.97 and 1.80 μg g−1 ww, respectively). Liver concentrations were influenced by the maturation stages for the three elements. Immature organisms exhibited lower trace element concentrations than adults. No significant differences were found between sexes, except for Cu concentrations in muscle, where adult females present higher levels than adult males. One muscle sample (2.3 %) exceeded the Mexican Legislation for Hg (1.0 μg g−1 ww) and five muscles samples (11.6 %) exceeded the Mexican limit for Cd (0.5 μg g−1 ww). Meat consumption of this species can be a risk to human health if it is ingested regularly.
KW - Bioconcentration
KW - Cadmium
KW - Copper
KW - Elasmobranch
KW - Health risk
KW - Mercury
UR - http://www.scopus.com/inward/record.url?scp=85140467463&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2022.114263
DO - 10.1016/j.marpolbul.2022.114263
M3 - Artículo
C2 - 36327932
AN - SCOPUS:85140467463
SN - 0025-326X
VL - 185
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
M1 - 114263
ER -