Polychlorinated biphenyls: penetration into the deep ocean by zooplankton fecal pellet transport

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Science  29 Jul 1977:
Vol. 197, Issue 4302, pp. 459-461
DOI: 10.1126/science.406672


High concentrations of polychlorinated biphenyls (PCB's) were found in fecal pellets from natural populations of euphausiids collected in the Ligurian Sea. Since biogenic particulate products, especially fecal pellets, are known to sink rapidly and intact to the ocean bottom, the transport of PCB's by such sinking particles could be an important mechanism which contributes to the penetration of PCB's into the deep sea.