| Drifting sediment trap measurements were carried out at high temporal frequency in the northwestern Mediterranean Sea in the course of the DYNAPROC 2 campaign, during the transition between late summer to autumn conditions. Molecular biomarkers were analyzed in selected subsets of consecutive samples collected for 6 h at 200 m depth. Fluxes of n-alkanes, long-chain alkenones, sterols and steroid ketones show high variability between consecutive 6-h samples, comparable in range to seasonal variability. n-Alkane export ranges from 1.4 to 29.7 mu g m(-2) d(-1), fluxes of C(37) alkenones varies from 0 to 14.2 mu g m(-2) d(-1). Fluxes of sterols, steroid ketones and C(30) alkane diol respectively range from 31 to 377, 2.2 to 46 and 0.3 to 9.3 mu g m(-2) d(-1).... |
