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

doi:10.1016/j.marpolbul.2022.114095

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

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

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.

Original language	English
Article number	114095
Journal	Marine Pollution Bulletin
Volume	183
DOIs	https://doi.org/10.1016/j.marpolbul.2022.114095
Publication status	Published - Oct 2022

Keywords

Elephant seal
Emerging contaminants
Feces
Leopard seal
Metals
Southern Ocean

ASJC Scopus subject areas

Oceanography
Aquatic Science
Pollution

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.marpolbul.2022.114095

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

abstract = "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.",

keywords = "Elephant seal, Emerging contaminants, Feces, Leopard seal, Metals, Southern Ocean",

author = "Celis, {Jos{\'e} E.} and Winfred Espejo and Gustavo Chiang and Daiki Kitamura and Elvira Vergara and Shosaku Kashiwada and O'Driscoll, {Nelson J.}",

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year = "2022",

month = oct,

doi = "10.1016/j.marpolbul.2022.114095",

language = "English",

volume = "183",

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T1 - Trace and rare earth elements in excreta of two species of marine mammals from South Shetland Islands, Antarctica

AU - Celis, José E.

AU - Espejo, Winfred

AU - Chiang, Gustavo

AU - Kitamura, Daiki

AU - Vergara, Elvira

AU - Kashiwada, Shosaku

AU - O'Driscoll, Nelson J.

PY - 2022/10

Y1 - 2022/10

N2 - 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.

AB - 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.

KW - Elephant seal

KW - Emerging contaminants

KW - Feces

KW - Leopard seal

KW - Metals

KW - Southern Ocean

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SN - 0025-326X

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JO - Marine Pollution Bulletin

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

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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