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Biological Responses of the American Coot (Fulica americana), in wetlands with contrasting environmental conditions (Basin of México).
López-Islas, María Eugenia; Ibarra-Meza, Itzel; Ortiz-Ordóñez, Esperanza; Favari, Liliana; Elías Sedeño-Díaz, J; López-López, Eugenia.
Afiliação
  • López-Islas ME; a Laboratorio de Evaluación de la Salud de los Ecosistemas Acuáticos, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional. Prol. de Carpio y Plan de Ayala s/n, Col. Santo Tomás , Ciudad de México , México.
  • Ibarra-Meza I; a Laboratorio de Evaluación de la Salud de los Ecosistemas Acuáticos, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional. Prol. de Carpio y Plan de Ayala s/n, Col. Santo Tomás , Ciudad de México , México.
  • Ortiz-Ordóñez E; b Laboratorio de Histología, Departamento de Morfología, Escuela Nacional de Ciencias Biológicas Instituto Politécnico Nacional. Prol. de Carpio y Plan de Ayala s/n, Col. Santo Tomás , Ciudad de México , México.
  • Favari L; c Departamento de Farmacología , Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional , Ciudad de México , México.
  • Elías Sedeño-Díaz J; d Coordinación Politécnica para la Sustentabilidad Instituto Politécnico Nacional. Av. IPN esq. Wilfrido Massieu s/n, Edificio de la Biblioteca Nacional, Segundo piso, Unidad Profesional Adolfo López Mateos, Col. Zacatenco , Ciudad de México , México.
  • López-López E; a Laboratorio de Evaluación de la Salud de los Ecosistemas Acuáticos, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional. Prol. de Carpio y Plan de Ayala s/n, Col. Santo Tomás , Ciudad de México , México.
J Toxicol Environ Health A ; 80(6): 349-364, 2017.
Article em En | MEDLINE | ID: mdl-28644715
Wetland ecosystems are subject to severe impacts (physical and chemical) and to the input of various xenobiotics that provoke toxicological consequences. Waterbirds are potential sentinel species of these environments. To analyze how habitat conditions affect the health of Fulica americana, early-warning biomarkers, histopathology, somatic indices, and water quality were examined in two wetlands of the Basin of Mexico: Xochimilco, an urban wetland highly eutrophic with a mixture of pollutants, and Tecocomulco (the reference site), a rural wetland with hunting migratory birds in winter, and with some agricultural contaminants. Coots were collected over 1 year, and the birds were aged, eviscerated, and weighed. Liver samples were analyzed biochemically and histologically. Biomarkers revealed that coots displayed higher lipid peroxidation and elevated activities of gamma-glutamyl transferase and alanine aminotransferase, suggesting hepatic damage during autumn and winter. In Tecocomulco, coots during winter has the highest thiobarbituric acid reactive substances (as a measure of oxidative stress), which may be associated with the presence of predators. In Tecocomulco, the higher gonadosomatic index was detected in spring and summer, while in Xochimilco it was elevated in summer, indicating a delayed egg laying and reproduction in coots from the latter study site. In both wetlands, leukocyte infiltration, alone or combined with vasocongestion, reflected alterations in the inflammatory processes in liver throughout the annual cycle and thus potentially altered hepatic function and organism survival. In both wetlands, coots were permanent residents and chronically exposed to different stressors, suggesting damage may be irreversible with potentially adversely reproductive consequences.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Qualidade da Água / Aves / Monitoramento Ambiental / Estresse Oxidativo / Eutrofização / Áreas Alagadas Limite: Animals País/Região como assunto: Mexico Idioma: En Revista: J Toxicol Environ Health A Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2017 Tipo de documento: Article País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Qualidade da Água / Aves / Monitoramento Ambiental / Estresse Oxidativo / Eutrofização / Áreas Alagadas Limite: Animals País/Região como assunto: Mexico Idioma: En Revista: J Toxicol Environ Health A Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2017 Tipo de documento: Article País de publicação: Reino Unido