Fecal pellets constituted more than 60% of the material collected during 45 days of deployment of a suitcase-type sediment trap in Santa Barbara Basin. The flux was 660 g m−2 yr−1, of which 22 g m−2 yr−1 was carbon flux. Pellet transport can account for about one-half of the sediment flux to the central basin floor, including the supply of terrigenous matter. The clearing activities of pellet-producing plankton have important implications for sedimentation and fertility in the coastal ocean.

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