Flux data of NU2_trap (Table A1) ...

• Main Authors: Romero, Oscar E, Boeckel, Babette, Donner, Barbara, Lavik, Gaute, Fischer, Gerhard, Wefer, Gerold
• Format: Dataset
• Language: English
• Published: PANGAEA - Publishing Network for Geoscientific and Environmental Data 2002
• Subjects: Planktonic foraminifera
• Online Access: https://dx.doi.org/10.15468/7bcsmd; https://www.gbif.org/dataset/87543296-f762-11e1-a439-00145eb45e9a

Flux of bulk components, carbonate- and silicate-bearing skeleton organisms, and the d15N-isotopic signal were investigated on a 1-year time-series sediment trap deployed at the pelagic NU mooring site (Namibia Upwelling, ca. 29°S, 13°E) in the central Benguela System. The flux of bulk components mostly shows bimodal seasonality with major peaks in austral summer and winter, and moderate to low export in austral fall and spring. The calcium carbonate fraction dominates the export of particulates throughout the year, followed by lithogenic and biogenic opal. Planktonic foraminifera and coccolithophorids are major components of the carbonate fraction, while diatoms clearly dominate the biogenic opal fraction. Bulk d15N isotopic composition of particulate matter is positively correlated with the total mass flux during summer and fall, while negatively correlated during winter and spring. Seasonal changes in the intensity of the main oceanographic processes affecting the NU site are inferred from variations in ...