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Polar Biology

, Volume 30, Issue 6, pp 781–788 | Cite as

Antarctic patterns of shallow subtidal habitat and inhabitants in Wilke’s Land

  • Emma L. JohnstonEmail author
  • Sean D. Connell
  • Andrew D. Irving
  • Adele J. Pile
  • Bronwyn M. Gillanders
Original Paper

Abstract

Studies of east Antarctic marine assemblages on hard substrata are rare. In relation to sea-ice breakout, we assessed benthic patterns of habitat and inhabitants between islands and bays at each of two depths (6 and 12 m) across the Windmill Islands coast. Island sites experience sea-ice breakout in the austral spring, while bay sites typically retain sea-ice cover into the summer and in some places the cover is virtually permanent. Composition of assemblages differed between sheltered bays and exposed islands. Islands were dominated by macroalgae, which also varied with depth. Immediately below the ice–foot zone at 6 m, substratum space were monopolised by foliose red (Palmaria decipiens) and foliose brown (Desmarestia sp.) algae, whereas at 12 m large canopies of Himantothallus grandifolius was abundant. The understorey consisted of a mixture of turfs and encrusting red algae at 6 m, and coralline algae at 12 m. Sheltered bays had large areas of sediment/algal complex and no canopy-forming macroalgae. We found more sponges and hydroids in bays, and more brittle stars around islands. Experiments testing factors that covary with exposure and depth in Antarctica, such as light, sedimentation and ice scour are necessary to determine processes that maintain these striking patterns.

Keywords

Rocky-coast Macroalgae Invertebrates Ice-cover Antarctica community structure Ice-sheets 

Notes

Acknowledgments

We would like to acknowledge the brave and generous support of our field volunteers Kate Stuart and Edward Forbes and our diving supervisor Colin Hodson. We are grateful for the expert advice and assistance of the entire Australian Antarctic Division’s 2003/2004 Diving Team. Figure 1 was kindly created by Jonathon Stark of the Australian Antarctic Division. This research was supported by an Australian Antarctic Division grant (2300) awarded to A.J.P., S.D.C., and B.M.G.

References

  1. Allison I (2005) Fast ice thickness of coastal eastern Antarctica. Australian Antarctic Data Centre, SnoWhite Metadata, (http://www.aad.gov.au/metadata)
  2. Amsler CD, Rowley RJ, Laur DR, Quetin LB, Ross RM (1995) Vertical distribution of Antarctic peninsular macroalgae: cover, biomass and species composition. Phycologia 34:424–430Google Scholar
  3. Anderson M (2001) A new method for non-parametric multivariate analysis of variance. Aust Ecol 26:32–46CrossRefGoogle Scholar
  4. Andrew NL (1993) Spatial heterogeneity, sea urchin grazing and habitat structure on reefs in temperate Australia. Ecology 74:292–302CrossRefGoogle Scholar
  5. Barnes DK (1995a) Sublittoral epifaunal communities at Signy Island, Antarctica. I. The ice-foot zone. Mar Biol 121:555–563CrossRefGoogle Scholar
  6. Barnes DK (1995b) Sublittoral epifaunal communities at Signy Island, Antarctica. II. Below the ice-foot zone. Mar Biol 121:565–572CrossRefGoogle Scholar
  7. Barnes DK, Brockington S (2003) Zoobenthic biodiversity, biomass and abundance at Adelaide Island, Antarctica. Mar Ecol Progr Ser 249:149–155Google Scholar
  8. Barnes DK, Rothery P, Clarke A (1996) Colonisation and development in encrusting communities from the Antarctic intertidal and sublittoral. J Exp Mar Biol Ecol 196:251–265CrossRefGoogle Scholar
  9. Bowden DA (2005) Quantitative characterisation of shallow marine benthic assemblages at Ryder Bay, Adelaide Island, Antarctica. Mar Biol 146:1235–1249CrossRefGoogle Scholar
  10. Brouwer P, Geilen E, Gremmen N, van Lent F (1995) Biomass, cover and zonation pattern of sublittoral macroalgae at Signy Island, South Orkney Islands, Antarctica. Botanica Marina 38:259–270CrossRefGoogle Scholar
  11. Buckley R, Trodahl H (1987) Scattering and absorption of visible light by sea ice. Nature 326:867–869CrossRefGoogle Scholar
  12. Clarke A, Leakey RJ (1996) The seasonal cycle of phytoplankton, macronutrients, and the microbial community in a nearshore Antarctic marine ecosystem. Limnol Oceanogr 41:1281–1294CrossRefGoogle Scholar
  13. Clarke A, Johnston N, Gibson R, Atkinson R (2003) Antarctic marine benthic diversity. Oceanogr Mar Biol Annu Rev 41:47–114Google Scholar
  14. Connell SD (2005) Assembly and maintenance of subtidal habitat heterogeneity: synergistic effects of light penetration and sedimentation. Mar Ecol Prog Ser 289Google Scholar
  15. Connell SD (2006) Subtidal temperate rocky habitats: habitat heterogeneity at local to continental scales. In: Connell SD, Gillanders B (eds) Marine ecology. Oxford University Press, Melbourne (in press)Google Scholar
  16. Connell SD, Irving AD (2006) The subtidal ecology of Australian rocky coast: regional patterns and their experimental analysis. In: Witman J, Kaustuv R (eds) Marine macroecology. University of Chicago Press, Chicago (in press)Google Scholar
  17. Connell SD, Vanderklift M (2006) Negative interactions: the influence of predators and herbivores on ecological systems. In: Connell S, Gillanders B (eds) Marine ecology. Oxford University Press, Melbourne (in press)Google Scholar
  18. Dayton PK (1989) Interdecadal variation in an Antarctic sponge and its predators from oceanographic climate shifts. Science 245:1484–1486CrossRefPubMedGoogle Scholar
  19. Dayton PK, Dayton L, Robilliard G, Paine RT (1974) Biological accommodation in the benthic community at McMurdo Sound, Antarctica. Ecol Monogr 44:105–128CrossRefGoogle Scholar
  20. Dieckmann G, Reichardt W, Zielinski K (1985) Growth and production of the seaweed, Himantothallus grandifolus, at King George Island. In: Siegfried W, Condy P, Laws R (eds) Antarctic nutrient cycles and food webs. Springer, Berlin Heidelberg New YorkGoogle Scholar
  21. Drew E, Hastings R (1992) A year-round ecophysiological study of Himantothallus grandifolius (Desmarestiales, Phaeophyta) at Signy Island, Antarctica. Phycologia 31:262–277Google Scholar
  22. Drummond S, Connell SD (2005) Quantifying percentage cover on subtidal organisms on rocky coasts: a comparison of the costs and benefits of standard methods. Mar Freshw Res 56:865–876CrossRefGoogle Scholar
  23. Dummermuth AL, Wiencke C (2003) Experimental investigation of seasonal development in six Antarctic red macroalgae. Antarct Sci 15:449–457CrossRefGoogle Scholar
  24. Glasby T (1999) Effects of shading on subtidal epibiotic assemblages. J Exp Mar Biol Ecol 234:275–290CrossRefGoogle Scholar
  25. Gomez I, Weykam G, Kloser H, Wiencke C (1997) Photosynthetic light requirements, metabolic carbon balance and zonation of sublittoral macroalgae from King George island (Antarctica). Mar Ecol Prog Ser 148:281–293Google Scholar
  26. Goodsell PJ, Fowler MJ-Walker, Gillanders BM, Connell SD (2004) Variations in the configuration of algae in subtidal forests: implications for invertebrate assemblages. Aust Ecol 29:350–357CrossRefGoogle Scholar
  27. Gutt J (2001) On the direct impact of ice on marine benthic communities, a review. Polar Biol 24:553–564CrossRefGoogle Scholar
  28. Kirkwood JM, Burton H (1988) Macrobenthic species assemblages in Ellis Fjord, Vestfold Hills, Antarctica. Mar Biol 97:445–457CrossRefGoogle Scholar
  29. Kloser H, Quartino ML, Wiencke C (1996) Distribution of macroalgae and macroalgal communities in gradients of physical conditions in Potter Cove, King George Island, Antarctica. Hydrobiologia 333:1–17CrossRefGoogle Scholar
  30. Miller KA, Pearse J (1991) Ecological studies of seaweeds in McMurdo Sound, Antarctica. Am Zool 31:35–48Google Scholar
  31. Peters R (1991) A critique for ecology. Cambridge University Press, New YorkGoogle Scholar
  32. Quinn GP, Keough MJ (2002) Experimental design and data analysis for biologists. Cambridge University Press, CambridgeGoogle Scholar
  33. Teixido N, Garrabou J, Gutt J, Arntz W (2004) Recovery in Antarctic benthos after iceberg disturbance: trends in benthic composition abundance and growth forms. Mar Ecol Prog Ser 278:1–16Google Scholar
  34. Underwood AJ, Chapman MG, Connell SD (2000) Observations in ecology: you can’t make progress on processes without understanding the patterns. J Exp Mar Biol Ecol 250:97–115PubMedCrossRefGoogle Scholar
  35. Vanderklift M, Kendrick G (2004) Variation in abundances of herbivorous invertebrates in temperate subtidal rocky reef habitats. Mar Freshw Res 55:93–103CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Emma L. Johnston
    • 1
    Email author
  • Sean D. Connell
    • 2
  • Andrew D. Irving
    • 2
    • 4
  • Adele J. Pile
    • 3
  • Bronwyn M. Gillanders
    • 2
  1. 1.School of Biological, Earth and Environmental SciencesUniversity of New South WalesSydneyAustralia
  2. 2.Southern Seas Ecology Laboratories, DP 418, School of Earth and Environmental SciencesUniversity of AdelaideAdelaideAustralia
  3. 3.School of Biological Sciences A08University of SydneySydneyAustralia
  4. 4.Ecology and Evolutionary BiologyBrown UniversityProvidenceUSA

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