Trace elements in the whale shark rhincodon typus liver: An indicator of the health status of the ecosystem base (plankton)

Francesca Pancaldi, Ana J. Marmolejo-Rodríguez, Martin F. Soto-Jiménez, Daniela A. Murillo-Cisneros, Edgar E. Becerril-García, Darren A. Whitehead, Rogelio González-Armas, Felipe Galván-Magaña, Federico Páez-Osuna

Research output: Contribution to journalArticlepeer-review

Abstract

Trace elements were determined in three areas of the right (RL) and left (LL) lobe of the liver obtained from a whale shark (Rhincodon typus) stranded in Mexico. Mean ± standard error concentrations in µg g-1 wet weight were for zinc (Zn) RL: 22.5 ± 2.1; LL: 26.5 ± 7.1, arsenic (As) RL: 33.0 ± 1.6; LL: 20.0 ± 9.9 and cadmium (Cd) RL: 15.5 ± 0.9; LL: 11.3 ± 3.7; copper (Cu) RL: 3.2 ± 0.3; LL: 2.2 ± 0.8, selenium (Se) RL: 0.5 ± 0.1; LL: 1.2 ± 0.6, mercury (Hg) RL: 0.06 ± 0.02; LL: 0.05 ± 0.004 and lead (Pb) RL: 0.05 ± 0.02; LL: 0.05 ± 0.01. Concentrations showed significant (P < 0.05) differences within the same lobe but not between lobes. The trace element levels found in this whale shark represent the baseline levels of the trophic base's health status in the study area.

Original languageEnglish
Pages (from-to)359-364
Number of pages6
JournalLatin American Journal of Aquatic Research
Volume49
Issue number2
DOIs
StatePublished - 2021

Keywords

  • Arsenic
  • Cadmium molar ratio
  • Gulf of California
  • Mercury
  • Rhincodon typus
  • Selenium

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