… even though the samples analyzed contained organic carbon concentrations of around
20 wt% (MA Huerta-Diaz, unpubl. data). All the sediment samples analyzed were within the …

… , where { } denotes concentration in the solid phase), were determined in all samples after
digestion of 2.5 g of freeze-dried sediment with 20 ml of 1 N HCI for 16 h (Huerta-Diaz and …

Trace metals commonly undergo chemical diagenesis in anoxic sediments from association
with metal oxides, organic matter, and other reactive components to coprecipitates with …

Handheld X-ray fluorescence spectrometers (XRFs) represent a more practical, efficient and
economic tool to determine the elemental composition of solid inorganic and organic …

Total metal concentrations in sediments from within Ensenada and El Sauzal Harbors are
generally higher than at the mouths. Grain-size analyses suggested that this enrichment could …

The Fe concentrations associated with operationally defined microbially reducible (Fe MR ),
pyrite (Fe pyr ) and reactive (Fe reac = Fe MR + Fe pyr ) geochemical fractions were …

Seabirds drastically transform the environmental conditions of the sites where they establish
their breeding colonies via soil, sediment, and water eutrophication (hereafter termed …

The toxicity and accumulation of Cd from sediment by benthic invertebrates was measured
along a Cd gradient created in nature. The efficacy of acid‐volatile sulfide (AVS) …

Seabirds are known to play an important role in the geochemical cycling of macronutrients;
however, their role in cycling elements of environmental interest has not been investigated. …

En la región de las grandes islas (RGI) del golfo de California la mezcla por mareas juega
un papel muy importante en la distribución de propiedades disueltas. Aunque la variabilidad …