Trace and rare earth elements in excreta of two species of marine mammals from South Shetland Islands, Antarctica

José E. Celis, Winfred Espejo, Gustavo Chiang, Daiki Kitamura, Elvira Vergara, Shosaku Kashiwada, Nelson J. O'Driscoll

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

5 Citas (Scopus)

Resumen

Pinnipeds are sentinel species for marine pollution, but their role as vectors of trace elements (TEs) or rare earth elements (REEs) to ecosystems has been poorly studied. The present study tested pinniped feces for 61 elements, including REEs. Feces of adult seals (Mirounga leonina, Hydrurga leptonyx) from Fildes Bay, King George Island, Antarctica, were analyzed by ICP-MS. TEs varied by several orders of magnitude across the suite examined herein, with Fe, Al, Zn, Mn, HgII and Sr as the top six in both species. Of the REEs, Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Nd, Pr, Sc, Sm, Tb, Y and Yb were found consistently in all samples and ranged from 0.935 to 0.006 μg g−1 d.w. The results show that both species act as biovector organisms of TEs and REEs through feces in remote environments, whose actual impacts and long-term fate need further exploration.

Idioma originalInglés
Número de artículo114095
PublicaciónMarine Pollution Bulletin
Volumen183
DOI
EstadoPublicada - oct. 2022

Áreas temáticas de ASJC Scopus

  • Oceanografía
  • Ciencias acuáticas
  • Contaminación

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