Five zones along a transect of 180 m were selected for study on the Island of Pai Matos (Sao
Paulo, Brazil). Four of the zones are colonised by vascular plants (Spartina SP, …

… 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 …

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

… , 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 …

… Each station consisted of a 200 m transect along the coast followed by a second 100 m
transect perpendicular to the coast. A total of 14 seaweed samples (Table 1) comprising seven …

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

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. …

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) …

The vertical distribution of both dissolved and particulate manganese was determined in the
Gulf of California (GC) during the MEGAMARCO expeditions conducted in summer 1996 …

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