Trapping efficiency of bottom-tethered sediment traps estimated from the intercepted fluxes of super(230)Th and super(231)Pa

The trapping efficiency of bottom-tethered deep-sea sediment traps deployed in four oceanic basins was estimated from the intercepted fluxes of super(231)Pa and super(230)Th. The results validate the general use of baffled, conical sediment traps for measuring the settling flux of particles in the b...

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Published in:Deep-sea research. Part I, Oceanographic research papers Oceanographic research papers, 2001-03, Vol.48 (3), p.865-889
Main Authors: Yu, E-F, Francois, R, Bacon, M P, Honjo, S, Fleer, A P, Manganini, S J, van der Loeff, MMR, Ittekot, V
Format: Article
Language:English
Subjects:
Marine
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Summary:The trapping efficiency of bottom-tethered deep-sea sediment traps deployed in four oceanic basins was estimated from the intercepted fluxes of super(231)Pa and super(230)Th. The results validate the general use of baffled, conical sediment traps for measuring the settling flux of particles in the bathypelagic zone (depth >1200 m) of the open ocean where current velocity is generally low. At shallower depths, within the mesopelagic zone, trapping efficiency tends to be lower and more erratic, even in areas of low current velocity (
ISSN:0967-0637