Mercury and selenium in the filter–feeding whale shark (Rhincodon typus) from two areas of the Gulf of California, Mexico

Francesca Pancaldi; Felipe Galván-Magaña; Rogelio González-Armas; Martin F. Soto-Jimenez; Darren A. Whitehead; Todd O'Hara; A. J. Marmolejo-Rodríguez; Abraham Vázquez-Haikin; Federico Páez-Osuna

doi:10.1016/j.marpolbul.2019.07.017

Mercury and selenium in the filter–feeding whale shark (Rhincodon typus) from two areas of the Gulf of California, Mexico

Francesca Pancaldi, Felipe Galván-Magaña, Rogelio González-Armas, Martin F. Soto-Jimenez, Darren A. Whitehead, Todd O'Hara, A. J. Marmolejo-Rodríguez, Abraham Vázquez-Haikin, Federico Páez-Osuna

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Resumen

Mercury and selenium were measured for first time in the endangered species whale shark (Rhyncodon typus) from two areas of the Gulf of California, Bahía Los Angeles (BLA) and Bahía La Paz (LAP) using dermal biopsies of seventy specimens. Additionally, nineteen zooplankton samples from LAP were analysed. Concentrations (ng/g, wet weight (ww)) in biopsies of BLA ranged from 1 to 40 for Hg and 100 to 680 for Se; while in LAP varied from 1 to 9 for Hg and 11 to 850 for Se. A positive correlation was found for Hg in BLA males biopsies with length. Hg and Se concentrations in the zooplankton from LAP were 1.6 ± 1.8 and 770 ± 930 ng/g, respectively. Hg biomagnification factor ranged from 0.8 to 5.3 in sharks. A molar excess of Se over Hg was found in the biopsies and the zooplankton.

Idioma original	Inglés
Páginas (desde-hasta)	955-961
Número de páginas	7
Publicación	Marine Pollution Bulletin
Volumen	146
DOI	https://doi.org/10.1016/j.marpolbul.2019.07.017
Estado	Publicada - sep. 2019
Publicado de forma externa	Sí

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Pancaldi, F., Galván-Magaña, F., González-Armas, R., Soto-Jimenez, M. F., Whitehead, D. A., O'Hara, T., Marmolejo-Rodríguez, A. J., Vázquez-Haikin, A., & Páez-Osuna, F. (2019). Mercury and selenium in the filter–feeding whale shark (Rhincodon typus) from two areas of the Gulf of California, Mexico. Marine Pollution Bulletin, 146, 955-961. https://doi.org/10.1016/j.marpolbul.2019.07.017

@article{503b25f04ac1404fa113ea769070a8e4,

title = "Mercury and selenium in the filter–feeding whale shark (Rhincodon typus) from two areas of the Gulf of California, Mexico",

abstract = "Mercury and selenium were measured for first time in the endangered species whale shark (Rhyncodon typus) from two areas of the Gulf of California, Bah{\'i}a Los Angeles (BLA) and Bah{\'i}a La Paz (LAP) using dermal biopsies of seventy specimens. Additionally, nineteen zooplankton samples from LAP were analysed. Concentrations (ng/g, wet weight (ww)) in biopsies of BLA ranged from 1 to 40 for Hg and 100 to 680 for Se; while in LAP varied from 1 to 9 for Hg and 11 to 850 for Se. A positive correlation was found for Hg in BLA males biopsies with length. Hg and Se concentrations in the zooplankton from LAP were 1.6 ± 1.8 and 770 ± 930 ng/g, respectively. Hg biomagnification factor ranged from 0.8 to 5.3 in sharks. A molar excess of Se over Hg was found in the biopsies and the zooplankton.",

keywords = "Bioaccumulation, Biomagnification, Biopsies, Gulf of California Mexico, Molar ratio of Hg and Se, Zooplankton",

author = "Francesca Pancaldi and Felipe Galv{\'a}n-Maga{\~n}a and Rogelio Gonz{\'a}lez-Armas and Soto-Jimenez, {Martin F.} and Whitehead, {Darren A.} and Todd O'Hara and Marmolejo-Rodr{\'i}guez, {A. J.} and Abraham V{\'a}zquez-Haikin and Federico P{\'a}ez-Osuna",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = sep,

doi = "10.1016/j.marpolbul.2019.07.017",

language = "Ingl{\'e}s",

volume = "146",

pages = "955--961",

journal = "Marine Pollution Bulletin",

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Pancaldi, F, Galván-Magaña, F , González-Armas, R, Soto-Jimenez, MF, Whitehead, DA, O'Hara, T, Marmolejo-Rodríguez, AJ, Vázquez-Haikin, A & Páez-Osuna, F 2019, 'Mercury and selenium in the filter–feeding whale shark (Rhincodon typus) from two areas of the Gulf of California, Mexico', Marine Pollution Bulletin, vol. 146, pp. 955-961. https://doi.org/10.1016/j.marpolbul.2019.07.017

TY - JOUR

T1 - Mercury and selenium in the filter–feeding whale shark (Rhincodon typus) from two areas of the Gulf of California, Mexico

AU - Pancaldi, Francesca

AU - Galván-Magaña, Felipe

AU - González-Armas, Rogelio

AU - Soto-Jimenez, Martin F.

AU - Whitehead, Darren A.

AU - O'Hara, Todd

AU - Marmolejo-Rodríguez, A. J.

AU - Vázquez-Haikin, Abraham

AU - Páez-Osuna, Federico

PY - 2019/9

Y1 - 2019/9

N2 - Mercury and selenium were measured for first time in the endangered species whale shark (Rhyncodon typus) from two areas of the Gulf of California, Bahía Los Angeles (BLA) and Bahía La Paz (LAP) using dermal biopsies of seventy specimens. Additionally, nineteen zooplankton samples from LAP were analysed. Concentrations (ng/g, wet weight (ww)) in biopsies of BLA ranged from 1 to 40 for Hg and 100 to 680 for Se; while in LAP varied from 1 to 9 for Hg and 11 to 850 for Se. A positive correlation was found for Hg in BLA males biopsies with length. Hg and Se concentrations in the zooplankton from LAP were 1.6 ± 1.8 and 770 ± 930 ng/g, respectively. Hg biomagnification factor ranged from 0.8 to 5.3 in sharks. A molar excess of Se over Hg was found in the biopsies and the zooplankton.

AB - Mercury and selenium were measured for first time in the endangered species whale shark (Rhyncodon typus) from two areas of the Gulf of California, Bahía Los Angeles (BLA) and Bahía La Paz (LAP) using dermal biopsies of seventy specimens. Additionally, nineteen zooplankton samples from LAP were analysed. Concentrations (ng/g, wet weight (ww)) in biopsies of BLA ranged from 1 to 40 for Hg and 100 to 680 for Se; while in LAP varied from 1 to 9 for Hg and 11 to 850 for Se. A positive correlation was found for Hg in BLA males biopsies with length. Hg and Se concentrations in the zooplankton from LAP were 1.6 ± 1.8 and 770 ± 930 ng/g, respectively. Hg biomagnification factor ranged from 0.8 to 5.3 in sharks. A molar excess of Se over Hg was found in the biopsies and the zooplankton.

KW - Bioaccumulation

KW - Biomagnification

KW - Biopsies

KW - Gulf of California Mexico

KW - Molar ratio of Hg and Se

KW - Zooplankton

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U2 - 10.1016/j.marpolbul.2019.07.017

DO - 10.1016/j.marpolbul.2019.07.017

M3 - Artículo

C2 - 31426243

SN - 0025-326X

VL - 146

SP - 955

EP - 961

JO - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

ER -

Mercury and selenium in the filter–feeding whale shark (Rhincodon typus) from two areas of the Gulf of California, Mexico

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