Mercury bioaccumulation patterns in deep-sea fishes as indicators of pollution scenarios in the northern Pacific of Mexico

Cruz-Acevedo, Edgar; Betancourt‐Lozano, Miguel; Arizmendi-Rodríguez, Dana Isela; Aguirre‐Villaseñor, Hugo; Aguilera-Márquez, Daniela; Garcı́a-Hernández, Jaqueline

doi:10.1016/j.dsr.2019.01.002

Cited by 14 publications

(2 citation statements)

References 48 publications

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“…The average Hg content of 0.52 ± 0.59 mg kg −1 observed in the present study is in agreement with those reported in other studies, of 0.51 ± 0.39 mg kg −1 in fish from the Mediterranean Sea, Italy (Storelli et al 2008), 0.57 ± 1.24 mg kg −1 in fish from the Aleutian Island, Alaska (Burger et al, 2014) and in fish from two regions off the Pacific Coast of Mexico, of 0.55 ± 0.34 mg kg −1 , Gulf of California and 0.60 ± 0.31 mg kg −1 and Baja California (Cruz-Acevedo et al, 2019). The latter study associates the Hg concentrations determined in these areas to metals and organic compounds transported by the Colorado River; urban settlements and mining located around the coast, and marine currents, which transport high amounts of this element.…”

Section: Mercurymentioning

confidence: 95%

Metal and metalloid concentrations in marine fish marketed in Salvador, BA, northeastern Brazil, and associated human health risks

Silva

Garcia

Santana

et al. 2021

Regional Studies in Marine Science

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Section: Mercurymentioning

confidence: 95%

Metal and metalloid concentrations in marine fish marketed in Salvador, BA, northeastern Brazil, and associated human health risks

Silva

Garcia

Santana

et al. 2021

Regional Studies in Marine Science

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“…Cuando se libera Hg al medio ambiente, este es transformado por bacterias a metil-Hg, un compuesto altamente tóxico. Este compuesto orgánico (metil-Hg) es absorbido por los organismos acuáticos y puede biomagnificarse a lo largo de la cadena alimenticia por medio de la bioacumulación (Cruz-Acevedo et al, 2019).…”

Section: Introductionunclassified

Assessment of mercury removal efficiency of a constructed wetland system from gold mining

Sierra

2024

Hidrobiológica

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Antecedentes. La contaminación por mercurio (Hg) producto del beneficio minero aurífero es un problema de índole ambiental, dada su capacidad de afectar los ecosistemas y la salud humana. Por lo cual, es fundamental proponer alternativas enfocadas en disminuir la contaminación producida principalmente al recurso hídrico, debido a la persistencia y permanencia de este metal pesado en el ambiente Objetivo. Evaluar la remoción de Hg y la carga orgánica del agua residual proveniente de un entable minero mediante un sistema de humedales de flujo subsuperficial horizontal. Métodos. Se realizó la caracterización fisicoquímica del agua residual minera, además, se diseñó y operó un sistema de tres humedales a los cuales se les varió el Tiempo de Retención Hidráulica (TRH) y la presencia o ausencia de Heliconia psittacorum, se evaluaron parámetros como pH, OD, turbidez, DBO 5 , DQO y Mercurio. Se aplicó una prueba estadística ANOVA con significancia del 95%. Resultados. El efluente minero arrojó concentraciones para DQO y Hg de 197 mg O 2 /L y 0,0021 mg/L, respectivamente, valores superiores a los permisibles por la normativa colombiana y de la EPA. Los humedales evaluados mostraron eficiencias de remoción para turbiedad, DBO 5 , DQO y Hg superiores al 98,44%, 93,10%, 71,52% y 91,03%, respectivamente. Las pruebas estadísticas sugieren que no existe diferencia significativa con respecto a la variación del TRH, pues los porcentajes de eficiencia de remoción del Hg para 2 y 4 días son relativamente similares Conclusiones. Los humedales de flujo subsuperficial horizontal y Heliconia psittacorum, son altamente eficientes en la remoción de Hg de aguas residuales de minería aurífera, consolidándose como una tecnología prometedora para la biorremediación ambiental.

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Mercury accumulation and biomarkers of exposure in two popular recreational fishes in Hawaiian waters

Holbert¹,

Bryan²,

Korsmeyer³

et al. 2023

Ecotoxicology

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Mercury (Hg) exposure has not been examined in many recreational nearshore fish species that are commonly consumed around the Hawaiian Islands. Specific gene transcripts, such as metallothionein (MET) and thioredoxin reductase (TrxR), can be used to examine Hg exposure responses in aquatic organisms. This study measured total mercury (THg) in four species from two groups of Hawaiian nearshore fishes: giant trevally (Caranx ignobilis, n = 13), bluefin trevally (C. melampygus, n = 4), sharp jaw bonefish (Albula virgata, n = 2), and round jaw bonefish (A. glossodonta, n = 19). Total Hg accumulation and abundance profiles of MET and TrxR were evaluated for muscle, liver, and kidney tissues. Total Hg in round jaw bonefish and giant trevally tissues accumulated with length and calculated age. In round jaw bonefish tissues, mean THg was greater in kidney (1156 ng/g wet mass (wm)) than liver (339 ng/g wm) and muscle (330 ng/g wm). Giant trevally muscle (187 ng/g wm) and liver (277 ng/g wm) mean THg did not differ significantly. Fish species in this study were compared to commercial and local fish species with state and federal muscle tissue consumption advisories based on THg benchmarks developed by the U.S. Food and Drug Administration (FDA) and Environmental Protection Agency (EPA). Both bonefishes had mean muscle THg that exceeded benchmarks suggesting consumption advisories should be considered. MET transcript in round jaw bonefish kidney tissue and kidney THg exhibited a marginally significant positive correlation, while TrxR transcript in liver tissue negatively correlated with increasing liver THg. These results contribute to our understanding of Hg exposure associated health effects in fish.

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Mercury bioaccumulation patterns in deep-sea fishes as indicators of pollution scenarios in the northern Pacific of Mexico

Cited by 14 publications

References 48 publications

Metal and metalloid concentrations in marine fish marketed in Salvador, BA, northeastern Brazil, and associated human health risks

Metal and metalloid concentrations in marine fish marketed in Salvador, BA, northeastern Brazil, and associated human health risks

Assessment of mercury removal efficiency of a constructed wetland system from gold mining

Mercury accumulation and biomarkers of exposure in two popular recreational fishes in Hawaiian waters

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