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Temporal distribution patterns of metals in water, sediment, and components of the trophic structure in a tropical coastal lagoon of the Gulf of Mexico.
Reyes-Márquez, Alejandra; Aguíñiga-García, Sergio; Morales-García, Sandra Soledad; Sedeño-Díaz, Jacinto Elías; López-López, Eugenia.
Afiliação
  • Reyes-Márquez A; Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prol. de Carpio y Plan de Ayala S/N Col. Santo Tomás, C.P. 11340, Ciudad de México, México.
  • Aguíñiga-García S; Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. Politécnico Nacional S/N, Col. Playa Palo de Santa Rita, BCS, 23096, La Paz, México.
  • Morales-García SS; Centro Mexicano para la Producción más Limpia, Instituto Politécnico Nacional, Av. Acueducto S/N, Gustavo A. Madero, Ticomán, C.P., 07340, Ciudad de México, México.
  • Sedeño-Díaz JE; Instituto Politécnico Nacional, Coordinación Politécnica Para La Sustentabilidad, C.P. 07738, Ciudad de México, México.
  • López-López E; Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prol. de Carpio y Plan de Ayala S/N Col. Santo Tomás, C.P. 11340, Ciudad de México, México. eulopez@ipn.mx.
Environ Sci Pollut Res Int ; 29(41): 61643-61661, 2022 Sep.
Article em En | MEDLINE | ID: mdl-35020148
Trophic transfer and bioaccumulation of trace metals have a profound impact on the structure and function of coastal areas; however, the metal accumulation patterns in detritus-based food webs and the influence of climatic variability have not been thoroughly investigated. The Tampamachoco Lagoon (Gulf of Mexico) is a coastal system impacted by emissions from a thermoelectric plant. We evaluated the spatial-temporal distribution patterns of Al, Cd, Hg, Cr, Cu, and Pb in water, sediments, and in organisms categorized by trophic levels (TLs), trophic guilds, and habitat preferences. The sediments had the highest concentrations of metals with no significant differences between seasons. The indices of geo-accumulation and potential ecological risk classified sediments as "moderately contaminated", evidencing a threat to human health through consumption of detritivores and filter-feeders. The lowest TLs (filter-feeders and detritivorous) reached the maximum Metal Pollution Index in the rainy season. According to discriminant analyses of metals and species, omnivorous and zoobentivorous organisms were associated with Hg during the rainy and dry seasons; while Al, Cd, and Cu were related to low TLs, and seston was associated with Pb. Food web magnification factor analysis showed that: (a) Pb, Cu, and Cr were biodiluted as trophic levels increased; (b) Cd and Hg showed temporal biomagnification trends; (c) Al, Pb, Cu, and Cd showed significant biodilution from the lowest TL to intermediate TLs; and (d) Hg was transferred from the lowest to intermediate TLs with clear biomagnification effects.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Metais Pesados / Mercúrio Tipo de estudo: Risk_factors_studies Limite: Humans País/Região como assunto: Mexico Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2022 Tipo de documento: Article País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Metais Pesados / Mercúrio Tipo de estudo: Risk_factors_studies Limite: Humans País/Região como assunto: Mexico Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2022 Tipo de documento: Article País de publicação: Alemanha