2020
DOI: 10.24215/25456377e123
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Caracterización físico-química y biológica de sedimentos marino costeros, sujetos o no a actividades antropogénicas (Golfo Nuevo, Patagonia argentina)

Abstract: El impacto causado por las embarcaciones en los puertos es un problema a nivel mundial debido al tráfico marítimo y el vertido de aguas residuales con un alto contenido orgánico. El objetivo de este trabajo fue caracterizar un sitio afectado crónicamente por actividades portuarias (Muelle Luis Piedrabuena-MLP) y otro sin signos de impacto antrópico (Cerro Avanzado-CA). Para ello, se colectaron muestras de sedimento (n=3) con un corer (diámetro: 11 cm, altura: 15 cm) y se realizó la determinación de parámetros … Show more

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“…The first four layers were 0.5 cm thick while the remaining ones (up to 16 cm) were 1 cm thick (Figure 2b). To assess the percentages of water content and organic matter in them, each sample was homogenized (25% of each layer; 7 layers; with 4 replicates per treatment), in agreement with previous work on Patagonian coastal sediment characterization (Sturla Lompré et al 2018;Ferrando and Sturla Lompré 2020;Ferrando et al 2022). A subsample of 2 g (wet weight) was dried in an oven at 105 °C until constant weight (dry weight).…”
Section: Samplingmentioning
confidence: 99%
See 1 more Smart Citation
“…The first four layers were 0.5 cm thick while the remaining ones (up to 16 cm) were 1 cm thick (Figure 2b). To assess the percentages of water content and organic matter in them, each sample was homogenized (25% of each layer; 7 layers; with 4 replicates per treatment), in agreement with previous work on Patagonian coastal sediment characterization (Sturla Lompré et al 2018;Ferrando and Sturla Lompré 2020;Ferrando et al 2022). A subsample of 2 g (wet weight) was dried in an oven at 105 °C until constant weight (dry weight).…”
Section: Samplingmentioning
confidence: 99%
“…In in situ and ex situ conditions, the results showed a higher percentage of water content and organic matter in the superficial layers than in deeper layers. This could be due to the predominance of silt sediments in the first few centimeters of sediments of this type of beach, resulting in greater retention of water and organic matter (Ferrando and Sturla Lompré 2020;Ferrando et al 2022).…”
Section: D���������mentioning
confidence: 99%