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Distribution of macrobenthic taxa across the Scotia Arc, Southern Ocean

Published online by Cambridge University Press:  19 May 2008

Huw J. Griffiths ,
Katrin Linse  and
David K.A. Barnes
Huw J. Griffiths*
Affiliation:
British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 OET, UK
Katrin Linse
Affiliation:
British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 OET, UK
David K.A. Barnes
Affiliation:
British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 OET, UK
*
[email protected]
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Abstract

An extremely dynamic chain of archipelagos links South America and the Antarctic Peninsula. It includes islands, which are large and small, old and young, near continental margins and isolated, and well sampled and poorly known. The current study sampled the macrobenthos of all the major archipelagos of this arc at shelf and slope depths using an Agassiz trawl. At least four samples (200 m, 500 m, 1000 m and 1500 m) were taken down-slope at Falkland Trough, Shag Rocks, South Georgia, South Thule, Powell Basin, Elephant Island, and Livingston Island sites and one sample was collected in the caldera of Deception Island. Despite the biogeographical and biodiversity importance of this region, this is the first time (by definition) entire standardized trawl samples have been analysed from all its archipelagos and at any consistent taxonomic level. We found 15 phyla and 29 classes of macro- and megafauna in total across the samples, many of which occurred at all sites. Even at remote and geologically young sites richness was high. Richness increased with abundance and wet mass and was highest in the shallow shelf samples and lowest at 1500 m. Abundance and wet mass varied more than two orders of magnitude, even within classes or study areas. There were strong similarities between the ascidian dominated shallow faunas of the two active volcanic sites, Southern Thule and Deception Island despite huge differences in isolation. There were also strong faunal similarities between Falkland Trough and Shag Rocks despite being on opposing sides of the Polar Front. In contrast two near neighbours with similarly soft substrata, Elephant and Livingston islands were amongst the most dissimilar.

Keywords

Antarcticamacrobenthosphylabiodiversityrichness
Type
Research Article
Information
Antarctic Science , Volume 20 , Issue 3: BIOPEARL Cruise in the Scotia Sea , June 2008 , pp. 213 - 226
Copyright
Copyright © Antarctic Science Ltd 2008

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References

Allcock, A.L., Lockhart, S., Ellingsen, K.E., Mooi, R. & De Broyer, C. 2003. Megabenthos. Berichte zur Polar- und Meeresforschung, 470, 91–94.Google Scholar
Arnaud, P.M., López, C.M., Olaso, I., Ramil, F., Ramos-Esplá, A. & Ramos, A. 1998. Semi-quantitative study of macrobenthic fauna in the region of the South Shetland Islands and the Antarctic Peninsula. Polar Biology, 19, 160–166.CrossRefGoogle Scholar
Arntz, W.E. & Brey, T. 2003. The Expedition ANTARKTIS XIX/5 (LAMPOS) of RV “Polarstern” in 2003. Berichte zur Polar- und Meeresforschung, 462, 1–120.Google Scholar
Arntz, W.E., Gutt, J. & Klages, M. 1997. Antarctic marine biodiversity: an overview. In Battaglia, B., Valencia, J. & Walton, D.W.H., eds. Antarctic communities: species, structure and survival. Cambridge: Cambridge University Press, 3–14.Google Scholar
Arntz, W.E., Thatje, S., Linse, K., Avila, C., Ballesteros, M., Barnes, D.K.A., Cope, T., Cristobo, F., De Broyer, C., Gutt, J., Isla, E., López-González, P., Montiel, A., Munilla, T., Ramos Esplá, A., Raupach, M., Rauschert, M., Rodriguez, E. & Teixidó, N. 2006. Missing link in the Southern Ocean: sampling the marine benthic fauna of remote Bouvet Island. Polar Biology, 29, 83–96.CrossRefGoogle Scholar
Arntz, W.E. & Rios, C. 1999. Magellan-Antarctic: ecosystems that drifted apart. Scientia Marina, 63 (Sup. 1), 1–518.CrossRefGoogle Scholar
Baker, P.E. 1968. Comparative volcanology and petrology of the Atlantic island arcs. Bulletin of Volcanology, 32, 189–206.CrossRefGoogle Scholar
Barnes, D.K.A. 2008. A benthic richness hotspot in the Southern Ocean: slope and shelf cryptic benthos of Shag Rocks. Antarctic Science, 20, 263–270.CrossRefGoogle Scholar
Barnes, D.K.A. & Conlan, K. 2007. Disturbance, colonization and development of Antarctic benthic communities. Philosophical Transactions of the Royal Society, B362, 11–38.CrossRefGoogle Scholar
Barnes, D.K.A. & De Grave, S. 2000. Biogeography of southern polar bryozoans. Vie et Milieu, 50, 261–274.Google Scholar
Barnes, R.S.K., ed. 1998. The diversity of living organisms. Oxford: Blackwell Science, 345 pp.CrossRefGoogle Scholar
Billett, D.S.M., Bett, B.J., Rice, A.L., Thurston, M.H., Galeron, J., Sibuet, M. & Wolff, G.A. 2001. Long-term change in the megabenthos of the Porcupine Abyssal Plain (NE Atlantic). Progress in Oceanography, 50, 325–348.CrossRefGoogle Scholar
Bray, J.R. & Curtis, J.T. 1957. An ordination of upland forest communities of southern Wisconsin. Ecological Monographs, 27, 325–349.CrossRefGoogle Scholar
Brey, T., Klages, M., Dahm, C., Gorny, M., Gutt, J., Hain, S., Stiller, M., Arntz, W.E., Wägele, J.-W. & Zimmerman, A. 1994. Antarctic benthic diversity. Nature, 368, 297.CrossRefGoogle Scholar
Cadée, G.C. 1992. Organic carbon in the upper layer and its sedimentation during the ice-retreat period in the Scotia–Weddell Sea, 1988. Polar Biology, 12, 253–259.CrossRefGoogle Scholar
Clarke, A. & Johnston, N. 2003. Antarctic marine benthic diversity. Oceanography and Marine Biology, 41, 47–114.Google Scholar
Clarke, A., Barnes, D.K. & Hodgson, D.A. 2005. How isolated is Antarctica? Trends in Ecology & Evolution, 20, 1–3.CrossRefGoogle ScholarPubMed
Clayton, M.N., Wiencke, C. & Klöser, H. 1997. New records and sub-Antarctic marine benthic macroalgae from Antarctica. Polar Biology, 17, 141–149.CrossRefGoogle Scholar
Cranmer, T.L., Ruhl, H.A., Baldwin, R.J. & Kaufmann, R.S. 2003. Spatial and temporal variation in the abundance, distribution and population structure of epibenthic megafauna in Port Foster, Deception Island. Deep-Sea Research II, 50, 1821–1842.CrossRefGoogle Scholar
Dell, R.K. 1972. Antarctic benthos. Advances in Marine Biology, 10, 1–216.CrossRefGoogle Scholar
Gallardo, V.A. & Castillo, J. 1969. Quantitative benthic survey of. the infauna of Chile Bay (Greenwich Island, South Shetland Island). Gayana, 16, 3–18.Google Scholar
Gallardo, V.A., Castillo, J.G., Retamal, M.A. & Yañes, A. 1977. Quantitative studies on the soft-bottom macrobenthic animal communities of shallow Antarctic bays. In Llano, G.A., ed. Adaptations within Antarctic ecosystems. Washington, DC: Smithsonian Institution, 361–387.Google Scholar
Gutt, J. 1998. Zur Verbreitung und Ökologie der Seegurken (Holothuroidea, Echinodermata) im Weddellmeer (Antarktis). Berichte zur Polar- und Meeresforschung, 41, 1–87.Google Scholar
Gutt, J. & Piepenburg, D. 2003. Scale-dependent impact on diversity of Antarctic benthos caused by grounding of icebergs. Marine Ecology Progress Series, 253, 77–83.CrossRefGoogle Scholar
Holm-Hansen, O., Hewes, C.D., Villafanñe, V.E., Helbling, E.W., Silva, N. & Amos, T. 1997. Distribution of phytoplankton and nutrients in relation to different water masses in the area around Elephant Island, Antarctica. Polar Biology, 18, 145–153.CrossRefGoogle Scholar
Lawver, L.A. & Gahagan, L.M. 2003. Evolution of Cenozoic seaways in the circum-Antarctic region. Palaeogeography, Palaeoclimatology, Palaeoecology, 198, 11–37.CrossRefGoogle Scholar
Linse, K., Griffiths, H.J., Barnes, D.K.A. & Clarke, A. 2006. Biodiversity and biogeography of Antarctic and sub-Antarctic mollusca. Deep-Sea Research, 53, 985–1008.Google Scholar
Livermore, R., Hillenbrand, C.-D., Meredith, M. & Eagles, G. 2007. Drake Passage and Cenozoic climate: an open and shut case? Geochemistry, Geophysics, Geosystems, 8, 10.1029/2005GC001224.CrossRefGoogle Scholar
Lovell, L.L. & Trego, K.D. 2003. The epibenthic megafaunal and benthic infaunal invertebrates of Port Foster, Deception Island (South Shetland Islands Antarctica). Deep-Sea Research II, 50, 1799–1819.CrossRefGoogle Scholar
Manjón-Cabeza, M.E. & Ramos, A. 2003. Ophiuroid community structure of the South Shetland Islands and Antarctic Peninsula region. Polar Biology, 26, 691–699.CrossRefGoogle Scholar
Meredith, M.P. & King, J.C. 2005. Climate change in the ocean to the west of the Antarctic Peninsula during the second half of the 20th century. Geophysical Research Letters, 32, 10.1029/2005GL024042.CrossRefGoogle Scholar
Peck, L.S., Webb, K. & Bailey, D. 2004. Extreme sensitivity of biological function to temperature in Antarctic marine species. Functional Ecology, 18, 625–630.CrossRefGoogle Scholar
Piepenburg, D., Schmid, M.K. & Gerdes, D. 2002. The benthos off King George Island (South Shetland Islands, Antarctica): further evidence for a lack of a latitudinal biomass cline in the Southern Ocean. Polar Biology, 25, 146–158.CrossRefGoogle Scholar
Oskierski, W. 1988. Verteilung und Herkunft glazial-mariner Gerölle am Antarktischen Kontinentalrand des östlichen Weddellmeeres. Berichte zur Polar- und Meeresforschung, 47, 1–167.Google Scholar
Quayle, W.C., Peck, L.S., Ellis-Evans, C.J., Peat, H.J. & Harrigan, P.R. 2002. Extreme responses to climate change in Antarctic lakes. Science, 295, 645.CrossRefGoogle ScholarPubMed
Ralph, R., Maxwell, J.G.H., Everson, I. & Hall, J. 1976. A record of Mytilus edulis L. from South Georgia. British Antarctic Survey Bulletin, No. 44, 101–102.Google Scholar
Ramos, A. 1999. The megazoobenthos of the Scotia Arc islands. Scientia Marina, 63 (Sup. 1), 171–182.CrossRefGoogle Scholar
Rauschert, M. 1991. Ergebnisse der faunistischen Arbeiten im Benthal von King George Island (Südshetlandinseln, Antarktis). Berichte zur Polar- und Meeresforschung, 76, 1–75.Google Scholar
Rex, M.A., Etter, R.J., Morris, J.S., Crouse, J., McClain, C.R., Johnson, N.A., Stuart, C.T., Deming, J.W., Thies, R. & Avery, R. 2006. Global bathymetric patterns of standing stock and body size in the deep-sea benthos. Marine Ecology Progress Series, 317, 1–8.CrossRefGoogle Scholar
Sáiz-Salinas, J.I., Ramos, A., García, F.J., Troncoso, J.S., San Martin, G., Sanz, C. & Palacin, C. 1997. Quantitative analysis of macrobenthic soft-bottom assemblages in South Shetland waters (Antarctica). Polar Biology, 17, 393–400.CrossRefGoogle Scholar
Saiz-Salinas, J.I., Ramos, A., Munilla, T. & Rauschert, M. 1998. Changes in the biomass and dominant feeding mode of benthic assemblages with depth off Livingston Island (Antarctica). Polar Biology, 19, 424–428.CrossRefGoogle Scholar
San Martín, G., Parapar, J., García, F.J. & Redondo, M.S. 2000. Quantitative analysis of soft bottoms infaunal macrobenthic polychaetes from South Shetland Islands (Antarctica). Bulletin of Marine Science, 67, 83–102.Google Scholar
San Vicente, C., Castelló, J., Corbera, J., Jimeno, A., Munilla, T., Sanz, M.C., Sorbe, J.C. & Ramos, A. 2007. Biodiversity and structure of the suprabenthic assemblages from South Shetland Islands and Bransfield Strait, Southern Ocean. Polar Biology, 30, 477–486.CrossRefGoogle Scholar
Simmonds, I. & Jacka, T.H. 1995. Relationships between the interannual variability of Antarctic sea ice and the Southern Oscillation. Journal of Climate, 8, 637–647.2.0.CO;2>CrossRefGoogle Scholar
Smellie, J.L., Morris, P., Leat, P.T., Turner, D.B. & Houghton, D. 1998. Submarine caldera and other volcanic observations in Southern Thule, South Sandwich Islands. Antarctic Science, 10, 171–172.CrossRefGoogle Scholar
Thomson, M.R.A. 2003. Drop-stones. Berichte zur Polar- und Meeresforschung, 470, 128–130.Google Scholar