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Short-term changes in particulate fluxes measured by drifting sediment traps during end summer oligotrophic regime in the NW Mediterranean Sea ArchiMer
Marty, J. C.; Goutx, M.; Guigue, C.; Leblond, N.; Raimbault, P..
Short-term changes in the flux of particulate matter were determined in the central north western Mediterranean Sea (near DYFAMED site) using drifting sediment traps at 200 m depth in the course of the DYNAPROC 2 cruise (14 September-17 October 2004). In this period of marked water column stratification, POC fluxes varied by an order of magnitude, in the range of 0.03-0.29 mgC m(-2) h(-1) over the month and showed very rapid and high variations. Particulate carbon export represented less than 5% of integrated primary production, suggesting that phytoplankton production was essentially sustained by internal recycling of organic matter and retained within the photic zone. While PON and POP fluxes paralleled one another, the elemental ratios POC/PON and...
Tipo: Text Palavras-chave: Planktonic community structure; Flame ionization detection; Atlantic time series; Organic carbon flux; Deep ocean; Downward fluxes; Particle flux; Vertical flux; Lipid classes; Sargasso sea.
Ano: 2009 URL: https://archimer.ifremer.fr/doc/00210/32099/30556.pdf
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Mid-water zooplankton profiles from the temperate ocean and partially landlocked seas. A re-evaluation of interoceanic differences ArchiMer
Weikert, H; Koppelmann, R.
Differences in the vertical distribution of bathypelagic zooplankton in the open northeast Atlantic and in the partially landlocked Levantine and Red Seas were re-evaluated to provide an interoceanic comparison. The decrease in zooplankton abundance with depth was most pronounced in the Red Sea and least evident in the northeast Atlantic. The Levantine Sea showed intermediate characteristics. The data plotted on a semi-log scale against a linear change in depth revealed a reduced rate of decrease in the zooplankton concentration with depth in the deep bathypelagic zone of the northeast Atlantic and the Levantine Sea. This pattern was also found for vertical profiles of micronekton abundance in the southeast Pacific. In the Red Sea, the decrease was...
Tipo: Text Palavras-chave: Bathypelagic zooplankton; Interoceanic comparison; Vertical distribution; Vertical flux.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00096/20733/18370.pdf
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