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EVALUATION OF TRACE ELEMENT CONCENTRATIONS IN THE SERUM AND VIBRISSAE OF PERUVIAN PINNIPEDS (ARCTOCEPHALUS AUSTRALIS AND OTARIA BYRONIA).
Kooyomjian, Catherine; Giarikos, Dimitrios; Adkesson, Michael; Hirons, Amy C.
Afiliação
  • Kooyomjian C; Halmos College of Arts and Sciences, Nova Southeastern University, 8000 N Ocean Drive, Dania Beach, Florida 33004, USA.
  • Giarikos D; Halmos College of Arts and Sciences, Nova Southeastern University, 8000 N Ocean Drive, Dania Beach, Florida 33004, USA.
  • Adkesson M; SECLER Consortium: Study of Environmental Conservation through Leading-Edge Research, Nova Southeastern University, 8000 N Ocean Drive, Dania Beach, Florida 33004, USA.
  • Hirons AC; Chicago Zoological Society, Brookfield Zoo, 3300 Golf Road, Brookfield, Illinois 60513, USA.
J Wildl Dis ; 58(3): 608-620, 2022 07 01.
Article em En | MEDLINE | ID: mdl-35666849
Concentrations of 15 trace elements (aluminum, arsenic, cadmium, chromium, cobalt, copper, iron, lead, manganese, mercury, nickel, selenium, tin, vanadium, and zinc) were determined in vibrissae (whiskers) and serum of two sympatric pinniped species, the Peruvian fur seal population (PFS; Arctocephalus australis Peruvian subpopulation) and South American sea lion (SASL; Otaria byronia) at Punta San Juan, Peru during 2011-19 sampling events. Element concentrations were 2-20 times higher in vibrissae than in serum. Vibrissae and serum concentrations of several elements, including aluminum, arsenic, and lead, suggest that environmental contaminants may affect the health of pinnipeds at Punta San Juan. Although toxicity thresholds are unknown in pinnipeds, high concentrations of some elements (especially aluminum, arsenic, and lead) may have adverse impacts on their health such as immunosuppression and impaired reproduction. Arsenic was the only element that increased in mean vibrissae concentration throughout the study period. Female SASL vibrissae contained a mean arsenic concentration three times higher than the male SASL vibrissae mean arsenic concentration, and twice as high as the arsenic mean for all PFS vibrissae. The mean male SASL vibrissae cadmium concentration was five times higher than the vibrissae cadmium mean for both PFS males and females and nearly three times higher than the vibrissae cadmium mean for SASL females. Serum concentrations of aluminum, arsenic, copper, and manganese were significantly higher during moderate to extreme El Niño years compared to La Niña years. With stronger and more frequent El Niño-Southern Oscillation events predicted in the future, it is vital to understand how these trace elements may affect pinniped population health.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Caniformia / Arsênio / Oligoelementos / Otárias Limite: Animals País/Região como assunto: America do sul / Peru Idioma: En Revista: J Wildl Dis Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Caniformia / Arsênio / Oligoelementos / Otárias Limite: Animals País/Região como assunto: America do sul / Peru Idioma: En Revista: J Wildl Dis Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Estados Unidos