Deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird
Mercury (Hg) is a globally important pollutant that can negatively impact metabolic, endocrine and immune systems of marine biota. Seabirds are long-lived marine top predators and hence are at risk of bioaccumulating high Hg concentrations from their prey. Here, we measured blood total mercury (THg)...
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ftconicet:oai:ri.conicet.gov.ar:11336/224411 2024-06-23T07:47:48+00:00 Deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird Ibañez, Andres Esteban Mills, William F. Bustamante, Paco Morales, Lara Mariel Torres, Diego Sebastian D' Astek, Beatriz Mariano y Jelicich, Rocío Phillips, Richard A. Montalti, Diego application/pdf http://hdl.handle.net/11336/224411 eng eng Pergamon-Elsevier Science Ltd info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0045653523029004 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemosphere.2023.140630 http://hdl.handle.net/11336/224411 Ibañez, Andres Esteban; Mills, William F.; Bustamante, Paco; Morales, Lara Mariel; Torres, Diego Sebastian; et al.; Deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird; Pergamon-Elsevier Science Ltd; Chemosphere; 346; 11-2023; 1-37 0045-6535 CONICET Digital CONICET info:eu-repo/semantics/embargoedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ANTARCTICA MERCURY PHYSIOLOGY POLLUTION REPRODUCTION SEABIRDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1016/j.chemosphere.2023.140630 2024-05-27T23:56:36Z Mercury (Hg) is a globally important pollutant that can negatively impact metabolic, endocrine and immune systems of marine biota. Seabirds are long-lived marine top predators and hence are at risk of bioaccumulating high Hg concentrations from their prey. Here, we measured blood total mercury (THg) concentrations and relationships with physiology and breeding parameters of breeding brown skuas (Stercorarius antarcticus) (n = 49 individuals) at Esperanza/Hope Bay, Antarctic Peninsula. Mean blood THg concentrations were similar in males and females despite the differences in body size and breeding roles, but differed between study years. Immune markers (hematocrit, Immunoglobulin Y [IgY] and albumin) were negatively correlated with blood THg concentrations, which likely indicates a disruptive effect of Hg on immunity. Alanine aminotransferase (GPT) activity, reflecting liver dysfunction, was positively associated with blood THg. Additionally, triacylglycerol and albumin differed between our study years, but did not correlate with Hg levels, and so were more likely to reflect changes in diet and nutritional status rather than Hg contamination. Egg volume correlated negatively with blood THg concentrations. Our study provides new insights into the sublethal effects of Hg contamination on immunity, liver function and breeding parameters in seabirds. In this Antarctic species, exposure to sublethal Hg concentrations reflects the short-term risks which could make individuals more susceptible to environmental stressors, including ongoing climatic changes. Fil: Ibañez, Andres Esteban. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina Fil: Mills, William F. University of Reading; Reino Unido Fil: Bustamante, Paco. Littoral Environnement Et Societes; Francia Fil: Morales, Lara Mariel. Universidad Nacional de ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Stercorarius antarcticus CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Antarctic Peninsula Argentina Esperanza ENVELOPE(-56.983,-56.983,-63.400,-63.400) Hope Bay ENVELOPE(-57.038,-57.038,-63.403,-63.403) Ibañez ENVELOPE(-58.100,-58.100,-64.250,-64.250) Morales ENVELOPE(-55.833,-55.833,-63.000,-63.000) Chemosphere 346 140630 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ANTARCTICA MERCURY PHYSIOLOGY POLLUTION REPRODUCTION SEABIRDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTICA MERCURY PHYSIOLOGY POLLUTION REPRODUCTION SEABIRDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Ibañez, Andres Esteban Mills, William F. Bustamante, Paco Morales, Lara Mariel Torres, Diego Sebastian D' Astek, Beatriz Mariano y Jelicich, Rocío Phillips, Richard A. Montalti, Diego Deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird |
topic_facet |
ANTARCTICA MERCURY PHYSIOLOGY POLLUTION REPRODUCTION SEABIRDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Mercury (Hg) is a globally important pollutant that can negatively impact metabolic, endocrine and immune systems of marine biota. Seabirds are long-lived marine top predators and hence are at risk of bioaccumulating high Hg concentrations from their prey. Here, we measured blood total mercury (THg) concentrations and relationships with physiology and breeding parameters of breeding brown skuas (Stercorarius antarcticus) (n = 49 individuals) at Esperanza/Hope Bay, Antarctic Peninsula. Mean blood THg concentrations were similar in males and females despite the differences in body size and breeding roles, but differed between study years. Immune markers (hematocrit, Immunoglobulin Y [IgY] and albumin) were negatively correlated with blood THg concentrations, which likely indicates a disruptive effect of Hg on immunity. Alanine aminotransferase (GPT) activity, reflecting liver dysfunction, was positively associated with blood THg. Additionally, triacylglycerol and albumin differed between our study years, but did not correlate with Hg levels, and so were more likely to reflect changes in diet and nutritional status rather than Hg contamination. Egg volume correlated negatively with blood THg concentrations. Our study provides new insights into the sublethal effects of Hg contamination on immunity, liver function and breeding parameters in seabirds. In this Antarctic species, exposure to sublethal Hg concentrations reflects the short-term risks which could make individuals more susceptible to environmental stressors, including ongoing climatic changes. Fil: Ibañez, Andres Esteban. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina Fil: Mills, William F. University of Reading; Reino Unido Fil: Bustamante, Paco. Littoral Environnement Et Societes; Francia Fil: Morales, Lara Mariel. Universidad Nacional de ... |
format |
Article in Journal/Newspaper |
author |
Ibañez, Andres Esteban Mills, William F. Bustamante, Paco Morales, Lara Mariel Torres, Diego Sebastian D' Astek, Beatriz Mariano y Jelicich, Rocío Phillips, Richard A. Montalti, Diego |
author_facet |
Ibañez, Andres Esteban Mills, William F. Bustamante, Paco Morales, Lara Mariel Torres, Diego Sebastian D' Astek, Beatriz Mariano y Jelicich, Rocío Phillips, Richard A. Montalti, Diego |
author_sort |
Ibañez, Andres Esteban |
title |
Deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird |
title_short |
Deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird |
title_full |
Deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird |
title_fullStr |
Deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird |
title_full_unstemmed |
Deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird |
title_sort |
deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird |
publisher |
Pergamon-Elsevier Science Ltd |
url |
http://hdl.handle.net/11336/224411 |
long_lat |
ENVELOPE(-56.983,-56.983,-63.400,-63.400) ENVELOPE(-57.038,-57.038,-63.403,-63.403) ENVELOPE(-58.100,-58.100,-64.250,-64.250) ENVELOPE(-55.833,-55.833,-63.000,-63.000) |
geographic |
Antarctic Antarctic Peninsula Argentina Esperanza Hope Bay Ibañez Morales |
geographic_facet |
Antarctic Antarctic Peninsula Argentina Esperanza Hope Bay Ibañez Morales |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Stercorarius antarcticus |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Stercorarius antarcticus |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0045653523029004 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemosphere.2023.140630 http://hdl.handle.net/11336/224411 Ibañez, Andres Esteban; Mills, William F.; Bustamante, Paco; Morales, Lara Mariel; Torres, Diego Sebastian; et al.; Deleterious effects of mercury contamination on immunocompetence, liver function and egg volume in an antarctic seabird; Pergamon-Elsevier Science Ltd; Chemosphere; 346; 11-2023; 1-37 0045-6535 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/embargoedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.chemosphere.2023.140630 |
container_title |
Chemosphere |
container_volume |
346 |
container_start_page |
140630 |
_version_ |
1802637985108197376 |