Iron, manganese and trace metal concentrations in seaweeds from the central west coast of the Gulf of California

Huerta-Díaz, Miguel Ángel; León-Chavira, Francisco de; Lares, María; Chee‐Barragan, A.; Siqueiros-Valencia, A.

doi:10.1016/j.apgeochem.2007.03.052

Cited by 36 publications

(39 citation statements)

References 35 publications

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“…In addition, mean southward or surface flows in the gulf renew waters and contribute to generate upwelling (López et al 2006). In this study, the highest level of Fe as well as the greatest amounts of macroalgae were measured in the Ángel de la Guarda region; this is probably due to intense vertical mixing in the area (Huerta-Díaz et al 2007).…”

Section: Distribución De Elementos Traza En El Golfo De Californiamentioning

confidence: 71%

“…Adicionalmente, los flujos medios hacia el sur o superficiales en el golfo renuevan las aguas y contribuyen a generar surgencias (López et al 2006). Por otra parte, en éste estudio, en la región Ángel de la Guarda se midió la concentración más alta de Fe y se registró la cantidad más alta de macroalgas muestreadas; esto probablemente se deba a la intensa mezcla vertical en la zona (Huerta-Díaz et al 2007).…”

Section: Pollution Situation In Each Regionunclassified

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Trace elements in bone of Zalophus californianus from the Gulf of California: A comparative assessment of potentially polluted areas

Szteren

Aurioles‐Gamboa

2013

Cienc. Mar.

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As a top predator, California sea lions (Zalophus californianus) can be used as sentinels to record ecosystem conditions because of the trace metals that bioaccumulate in their tissues and are biomagnified in the trophic webs. The concentration of 11 trace elements (Al, As, Cd, Co, Cu, Fe, Hg, Ni, Pb, Se, and Zn) was measured in California sea lion skulls from four regions of the Gulf of California (Mexico): Northern Gulf, Ángel de la Guarda, Central Gulf, and Southern Gulf. The aims of this study were (1) to determine and compare the mean concentration of trace elements among the four regions, and (2) to estimate the pollution situation of each region using the more toxic trace elements. The elements found in higher concentration in sea lion bone were Al (overall mean of 73.70 µg g–1) and Zn (60.78 µg g–1). Only the concentration of As and Hg showed significant differences among regions: As was higher in the Central Gulf than in Ángel de la Guarda and the Northern Gulf, while Hg was higher in the Northern Gulf and Ángel de la Guarda than in the Central and Southern Gulf. The comparative analysis of the pollution situation indicated that the Central Gulf was the most affected by As and Cd, and the Northern Gulf and Ángel de la Guarda by Hg. Regions with different trace element concentrations may reflect different feeding habits and oceanographic conditions, and are congruent with other regional patterns suggested for the Gulf of California.

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Section: Distribución De Elementos Traza En El Golfo De Californiamentioning

confidence: 71%

Section: Pollution Situation In Each Regionunclassified

Trace elements in bone of Zalophus californianus from the Gulf of California: A comparative assessment of potentially polluted areas

Szteren

Aurioles‐Gamboa

2013

Cienc. Mar.

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“…Los elevados niveles de aluminio registrados en C. polyodon recolectado en las bahías Salada (bahía con escasa intervención antrópica) y Caldera (bahía más intervenida) podría deberse al transporte atmosférico activo que estaría depositando Al en el fondo marino y que podría ser resuspendido en la columna de agua, quedando disponible para los organismos marinos (Lares et al, 2002;Huerta et al, 2007). De las cuatro bahías analizadas, Caldera y Salada presentaron altas concentraciones de Fe, siendo más elevadas que las registradas por otros autores (Burger et al, 2002;Barrento et al, 2009b).…”

Section: Discussionunclassified

“…En los últimos años la presencia de metales pesados en las zonas costeras con grandes asentamientos humanos y con un importante desarrollo industrial ha recibido especial interés (Vásquez & Guerra, 1996;SegoviaZavala et al, 2004;Valdés et al, 2005Valdés et al, , 2010Gil et al, 2006;Hamed & Emara, 2006;Huerta et al, 2007;Valdés & Sifeddine, 2009).…”

Section: Introductionunclassified

Contenido de metales en Cancer polyodon (Crustacea: Decapoda) en un sistema de bahias del norte de Chile (27°S)

Castillo

Valdés

2011

lajar

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RESUMEN. El contenido de Zn, Cu, Cd, Pb, Fe, Al y Ni fue analizado en tejido muscular de Cancer polyodon en las bahías de Caldera, Calderilla, Inglesa y Salada (Atacama, Chile). Los resultados fueron comparados con estudios similares desarrollados por otros autores y la normativa de carácter nacional e internacional relacionada con el contenido de metales pesados en crustáceos para consumo humano. El orden de abundancia de los metales analizados en C. polyodon fue Cd

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“…García-Rico et al (2004) and Ochoa-Valenzuela et al (2009) studied metal distribution in select geochemical fractions of the sediments at the Sonora coasts, and the highest concentrations of non-residual Cd, Cu, and Pb in the Fe and Mn oxide fraction have been found. It has been reported that the metals can form stable complexes with Fe and Mn oxides (Bibi et al 2007;Huerta-Diaz et al 2007;Xiangdong et al 2001). The metals in this fraction are more strongly bound than the exchangeable or carbonate fractions and occur mainly as surface-associated metals and co-precipitates of hydrous metal oxides.…”

Section: Introductionmentioning

confidence: 97%

Fractionation and risk assessment of Fe and Mn in surface sediments from coastal sites of Sonora, Mexico (Gulf of California)

Jara-Marini

García-Camarena

Gómez-Álvarez

et al. 2015

Environ Monit Assess

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The aim of this study was to evaluate Fe and Mn distribution in geochemical fractions of the surface sediment of four oyster culture sites in the Sonora coast, Mexico. A selective fractionation scheme to obtain five fractions was adapted for the microwave system. Surface sediments were analyzed for carbonates, organic matter contents, and Fe and Mn in geochemical fractions. The bulk concentrations of Fe ranged from 10,506 to 21,918 mg/kg (dry weight, dry wt), and the bulk concentrations of Mn ranged from 185.1 to 315.9 mg/kg (dry wt) in sediments, which was low and considered as non-polluted in all of the sites. The fractionation study indicated that the major geochemical phases for the metals were the residual, as well as the Fe and Mn oxide fractions. The concentrations of metals in the geochemical fractions had the following order: residual >> Fe and Mn oxides > organic matter > carbonates > interchangeable. Most of the Fe and Mn were linked to the residual fraction. Among non-residual fractions, high percentages of Fe and Mn were linked to Fe and Mn oxides. The enrichment factors (EFs) for the two metals were similar in the four studied coasts, and the levels of Fe and Mn are interpreted as non-enrichment (EF < 1) because the metals concentrations were within the baseline concentrations. According to the environmental risk assessment codes, Fe and Mn posed no risk and low risk, respectively. Although the concentrations of Fe and Mn were linked to the residual fraction, the levels in non-residual fractions may significantly result in the transference of other metals, depending on several physico-chemical and biological factors.

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Iron, manganese and trace metal concentrations in seaweeds from the central west coast of the Gulf of California

Cited by 36 publications

References 35 publications

Trace elements in bone of Zalophus californianus from the Gulf of California: A comparative assessment of potentially polluted areas

Trace elements in bone of Zalophus californianus from the Gulf of California: A comparative assessment of potentially polluted areas

Contenido de metales en Cancer polyodon (Crustacea: Decapoda) en un sistema de bahias del norte de Chile (27°S)

Fractionation and risk assessment of Fe and Mn in surface sediments from coastal sites of Sonora, Mexico (Gulf of California)

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