Benthic changes at McMurdo Station, Antarctica following local sewage treatment and regional iceberg-mediated productivity decline

Marine Pollution Bulletin
Kathleen E ConlanE Hendrycks

Abstract

McMurdo Station, the largest research station in Antarctica, ceased on-site garbage dumping in 1988 and initiated sewage treatment in 2003. In 2003-2004 its sea-ice regime was altered by the massive B-15A and C-19 iceberg groundings in the Ross Sea, approximately 100km distant. Here we follow macrofaunal response to these changes relative to a baseline sampled since 1988. In the submarine garbage dump, surface contaminants levels have declined but associated macrofaunal recolonization is not yet evident. Although sewage-associated macrofauna were still abundant around the outfall nearly 2yr after initiation of treatment, small changes downcurrent as far as 434m from the outfall suggest some community recovery. Widespread community changes in 2003-2004, not seen in the decade previously, suggests that the benthos collectively responded to major changes in sea-ice regime and phytoplankton production caused by the iceberg groundings.

References

Jul 6, 2004·Marine Pollution Bulletin·Kathleen E ConlanJohn S Oliver
Oct 19, 2006·Marine Pollution Bulletin·Kathleen E ConlanRikk G Kvitek
Apr 4, 2007·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·David K A Barnes, Kathleen E Conlan
Jun 3, 2008·Marine Pollution Bulletin·A B JosefsonP Johansen
May 1, 1995·Environmental Science & Technology·M C Kennicutt IiD Bockus

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Citations

May 12, 2011·Integrative and Comparative Biology·Stacy KimAndrew R Thurber
Apr 1, 2011·Annals of the New York Academy of Sciences·Richard B AronsonKevin A Hughes
Aug 28, 2015·Environmental Pollution·Da ChenHeidi N Geisz
May 23, 2014·Frontiers in Physiology·Adam G Marsh, Annamarie A Pasqualone
Jan 3, 2019·Ecological Applications : a Publication of the Ecological Society of America·Paul K DaytonJames J Leichter
Oct 21, 2020·The Science of the Total Environment·Terence A PalmerJennifer Beseres Pollack
Sep 29, 2021·Global Change Biology·Andrew M LohrerVonda J Cummings

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