Assessment and timing of the anthropogenic imprint and fisheries richness in marine sediments from Ría de Muros (NW Iberian Peninsula)

Álvarez-Iglesias, P.; Andrade, Alba; Rey, D.; Quintana, B.; Bernabéu, Ana M.; López-Pérez, A.E.; Armesto, Belén Rubio

doi:10.1016/j.quaint.2020.05.005

Cited by 5 publications

(2 citation statements)

References 67 publications

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“…It must allow the aforementioned analytical techniques and others, like the increasing application of variations of X-Ray Fluorescence (XRF, e.g. Álvarez-Vázquez et al, 2014;Elznicová et al, 2019;Álvarez-Iglesias et al, 2020). In this way, a research question was proposed: Are sediments trapped by fluvial potholes suitable to be used as environmental indicators in small bedrock rivers?…”

Section: Introductionmentioning

confidence: 99%

An exploratory study to test sediments trapped by potholes in Bedrock Rivers as environmental indicators (NW Iberian Massif)

Álvarez-Vázquez¹,

Álvarez²

2021

CyG

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The capacity of fluvial potholes to trap sediments, together with the geochemical analysis of their stored sediments for environmental assessment, is an overlooked research topic in small bedrock rivers. The present exploratory study is focused on this issue. It was developed in a small river over rock, in the inland territory of Galicia (NW Iberian Peninsula). The study started from an analysis of the inventoried fluvial potholes to identify suitable forms for sampling, and the collection of sediment samples within them. After this, the determination of the grain texture, mineralogy and content of major and trace elements in sediments were carried out. Potholes with maximum vertical depth from 25 cm to 1 m, located in central and sidewall sectors of the bedrock channel, provided the best conditions for sediment sampling. The sediments collected from six potholes showed predominance of coarse-medium grain size and sand fraction. The rough contents of the major and even trace elements are related with the nature of the more refractory minerals of the bedrock. An adequate sampling strategy, considering grain-size fractions, show potential to use trace elements as environmental indicators.

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Section: Introductionmentioning

confidence: 99%

An exploratory study to test sediments trapped by potholes in Bedrock Rivers as environmental indicators (NW Iberian Massif)

Álvarez-Vázquez¹,

Álvarez²

2021

CyG

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“…Although many studies on recent sediment pollution have been conducted in the Galician Rias Baixas in the last decades (e.g., Álvarez-Vázquez et al 2020;Barreiro Lozano et al 1988;Canário et al 2007;Carballeira et al 1997;Carral et al 1995aCarral et al , 1995bPérez-López et al 2004;Prego and Cobelo-Garcia 2003;Rubio et al 2000Rubio et al , 2010, to our knowledge, only the works of López and Álvarez-Iglesias et al (2020) has analyzed paleopollution (before the industrial revolution). The research presented in both works was performed on human remains of the archaeological settlement of A Lanzada, which is located in the outer, northern sector of the Ría de Pontevedra and analyzed the effects of atmospheric mercury and lead exposure at the edge of the Roman World.…”

Section: Introductionmentioning

confidence: 99%

Factors driving sediment compositional change in the distal area of the Ria de Vigo (NW Spain): oceanographic processes vs. paleopollution

Martins

Cazelli

Yhasnara

et al. 2022

Environ Sci Pollut Res

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We analyze potential Late Holocene metal contamination along a sediment core collected in the distal zone of Ria de Vigo (North Spain). Statistical treatment of the dataset based on a multiproxy approach enabled us to identify and disentangle factors influencing the depositional processes and the preservation of the records of this activity in the area over the last ≈3000 years bp. Some layers of the analyzed core have significant enrichment in Cu and a moderate enrichment in Ag, Mo, As, Sb, S, Zn, Ni, Sn, Cd, Cr, Co, Pb, and Li. The enrichment of these elements in some layers of this core may be related to mining activities that have taken place since classical times in the region. Successive phases of pollution were identified along the core KSGX24 related to the Late Bronze Age (≈3000-2450 years bp), Iron Age (≈2450-1850 years bp), Roman times (≈1850-1550 years bp), Middle Ages (≈1250-500 years bp), and industrial and modern (≈250-0 years bp) anthropic activities. The protection of the Cies Islands, the erosive and transport capacity of the rivers in the region, oscillations of the oceanographic and climatic regime, atmospheric contamination, and diagenetic sedimentary processes might have contributed to the accumulation and preservation of this record in the distal region of the Ria de Vigo. The studied core shows that the industrial and preindustrial anthropic impacts caused an environmental liability and contributed to the presence of moderate to heavy pollution of various metals in surface and subsurface sediment layers in the distal sector of the Ria de Vigo, which could be a hazard to biota.

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Trace element fluxes during the “Anthropocene” in a large South American industrial and port area (Santos and São Vicente estuarine system, SE, Brazil)

Angeli

Sartoretto

Kim

et al. 2021

Environ Monit Assess

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Assessment and timing of the anthropogenic imprint and fisheries richness in marine sediments from Ría de Muros (NW Iberian Peninsula)

Cited by 5 publications

References 67 publications

An exploratory study to test sediments trapped by potholes in Bedrock Rivers as environmental indicators (NW Iberian Massif)

An exploratory study to test sediments trapped by potholes in Bedrock Rivers as environmental indicators (NW Iberian Massif)

Factors driving sediment compositional change in the distal area of the Ria de Vigo (NW Spain): oceanographic processes vs. paleopollution

Trace element fluxes during the “Anthropocene” in a large South American industrial and port area (Santos and São Vicente estuarine system, SE, Brazil)

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