Figure 1.  Cut-away view showing an Anderson-type cone-shaped sediment trap, including the location of the Intervalometer, its attachment to the cross bar below the baffle, and the discharge of the partitions (discs) from the Intervalometer onto the surface of the sediment (Roger Anderson, University of New Mexico, written communication,  2008). The baffle at the top of the trap is installed to reduce turbulence at the opening and to reduce the volume of mega fauna entering the trap and possibly bioturbating the sediments in the collection tube.

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