info:eu-repo/semantics/article
Mercury levels in feathers of Magellanic penguins
Registro en:
Frías, Jorgelina E.; Gil, Monica Noemi; Esteves, Jose Luis; Garcia Borboroglu, Jorge Pablo; Kane, Olivia J.; et al.; Mercury levels in feathers of Magellanic penguins; Pergamon-Elsevier Science Ltd; Marine Pollution Bulletin; 64; 6; 6-2012; 1265-1269
0025-326X
CONICET Digital
CONICET
Autor
Frías, Jorgelina E.
Gil, Monica Noemi
Esteves, Jose Luis
Garcia Borboroglu, Jorge Pablo
Kane, Olivia J.
Smith, Jeff R.
Boersma, P. Dee
Resumen
Feathers are useful to determine mercury (Hg) contamination. We evaluated the mercury concentration in feathers of Magellanic penguins (Spheniscus magellanicus) age 1.5. years to 25. years at Punta Tombo, Argentina before and during their molt. Mercury ranged between <1.4 and 367. ng/g. dry. weight, with three extreme high values (8996. ng/g, 3011. ng/g and 1340. ng/g) all in young adults. The median concentration was lowest for juveniles and significantly higher for adults but with high variation among older adults. Males and females had similar mercury loads. Compared with other penguin species, concentrations in Magellanic penguins were low. Mercury levels for Magellanic penguins in the Southwest Atlantic for older adults averaged 206 ± 98 ng/g, and serve as a baseline for biomonitoring and/or ecotoxicological studies. Fil: Frias, Jorgelina E.. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina Fil: Gil, Monica Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Esteves, Jose Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Garcia Borboroglu, Jorge Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Kane, Olivia J.. University of Washington; Estados Unidos. Wildlife Conservation Society; Estados Unidos Fil: Smith, Jeff R.. University of Washington; Estados Unidos. Wildlife Conservation Society; Estados Unidos Fil: Boersma, P. Dee. University of Washington; Estados Unidos. Wildlife Conservation Society; Estados Unidos