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DOI: http://dx.doi.org/10.11646/zootaxa.3692.1.3

Editorial: Diversity of Southern Ocean deep-sea benthos between cosmopolitism and cryptic speciation: new species from the ANDEEP expeditions

MYRIAM SCHÜLLER, ANGELIKA BRANDT, BRIGITTE EBBE

Abstract


The richness of life in parts of the earth that to us appear inhospitable and remote never fails to fascinate scientists and non-scientists alike. The largest ecosystem of the planet, the abyssal plains of the world ocean, makes up about 90 percent of the seafloor and thus nearly 78 percent of the Earth’s surface, yet only a minor fraction of this huge environment has been investigated. Authors have questioned repeatedly “how many species would live on earth and in the ocean” (Mora et al. 2011; May 2011), and recent estimations predict ~ 8.7 million (+/- 1.3 million SE) eukaryotic species globally, with 2.2 million of these being marine (Mora et al. 2011). To date, 91 % of all marine species still await description. Other authors concluded that marine biodiversity is grossly underestimated (Bouchet 2006) because so far, only one-third of all species descriptions concerns marine biota (Reaka-Kudla 1997; Groombridge & Jenkins 2000, Grassle 2001, Boltovskoy et al. 2005). We know that marine live thrives even in hadal trenches (Jamieson et al. 2009), that biogeographic ranges in the deep sea are dynamic (McClain & Mincks Hardy 2010) and that the origin of the modern deep-sea fauna is ancient (Thuy et al. 2012). For example, the origin of Isopoda dates back to Permo-Triassic times (232– 314 mya; Lins et al. 2012).


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References


Brandt, A. (1991) Zur Besiedlungsgeschichte des antarktischen Schelfes am Beispiel der Isopoda (Crustacea, Malacostraca). Berichte zur Polarforschung, 98, 1–240.

Brandt, A. & J. Gutt (2011) Biodiversity of a unique environment: the Southern Ocean benthos threat by climate change. In: Zachos, F. & J. C. Habel, Biodiversity hotspots, 25, Springer Publishers, Heidelberg, 503–526.
http://dx.doi.org/10.1007/978-3-642-20992-5_25

Bouchet, P. (2006) The magnitude of marine biodiversity. In: Duarte, C. (Eds.) The exploration of marine biodiversity:scientific and technological challenges, 31–62.

Boltovskoy, D., Correa, N. & A.Boltovskoy (2005) Diversity and Endemism in cold Waters of the South Atlantic: con- trasting patterns in the plankton and the benthos. Scientia Marina, 69 (Suppl. 2), 17–26.
http://dx.doi.org/10.3989/scimar.2005.69s217

De Broyer, C. & Danis, B. (2011) How many species in the Southern Ocean? Towards a dynamic inventory of the Antarctic marine species. Deep-Sea Research II, 58, 5–17.
http://dx.doi.org/10.1016/j.dsr2.2010.10.007

Grassle, J.F. (2001) Marine Ecosystems. In: Levin, S.A. (Ed.), Encyclopaedia of Biodiversity, San Diego: Academic Press, 13–25.
http://dx.doi.org/10.1016/b0-12-226865-2/00186-3

Griffiths, H.J. (2010) Antarctic Marine Biodiversity – What do we know about the distribution of life in the Southern Ocean? PLOS One, 5(8), e11683, 1–11.
http://dx.doi.org/10.1371/journal.pone.0011683.

Groombridge, B. & Jenkins, M.D. (Eds.) Global biodiversity: Earth’s living resources in the 21st century. Cambridge: World Conservation Press. 340 pp.

Ingels, J., Vanreusel, A., Brandt, A., Catarino, A.I., David, B., De Ridder, C., Dubois, P., Gooday, A.J., Martin, P., Pasotti, F. & Robert, H. (2012) Possible effects of global environmental changes on Antarctic benthos: a synthesis across five major taxa. Ecology and Evolution, 453–485.
http://dx.doi.org/10.1002/ece3.96

Jamieson, A.J., Fujii, T., Major, D.J., Solan, M. & Priede, I.G. (2009) Hadal trenches: the ecology of the deepest places on Earth. Trends in Ecology and Evolution, 25(3), 190–197.
http://dx.doi.org/10.1016/j.tree.2009.09.009

Lins, L.S.F., Ho, S.Y.W., Wilson, G.D.F. & Lo, N. (2012) Evidence for Permo-Triassic colonization of the deep sea by isopods. Biology Letters, 8 (6), 979–982.
http://dx.doi.org/10.1098/rsbl.2012.0774

May, R.M. (2011) Why worry about how many species and their loss? Plos One, 9(8), 1–2.

McClain C.R. & Mincks Hardy, S. (2010) The dynamics of biogeographic ranges in the deep sea. Proceedings of the Royal Society B, 277, 3533–3546.
http://dx.doi.org/10.1098/rspb.2010.1057

Mora, C., Tittensor, D.P., Adl, S., Simpson, A.G.B. & Worm, B. (2011) How many species are there on Earth and in the Ocean? Plos Biology 9(8), 1–8.
http://dx.doi.org/10.1371/journal.pbio.1001127

Nyssen, F., Brey, T., Dauby, P. & Graeve, M. (2005) Trophic position of Antarctic amphipods – enhanced analysis by a 2-dimensional biomarker assay. Marine Ecology Progress Series Vol. 300, 135–145.
http://dx.doi.org/10.3354/meps300135

Reaka-Kudla, M.L. (1997) The global biodiversity of coral reefs: a comparison with rain forests, In: Reaka-Kudla, M.L., Wilson, D.E. and Wilson, E.O., eds. Biodiversity II. Washington, Joseph Henry Press, pp. 83–108.

Riehl, T. & Kaiser, S. (2012) Conquered from the deep? A new-described deep-sea isopod species from the Antarctic shelf shows pattern of recent colonization. Plos One, 7(11), 1–24.
http://dx.doi.org/10.1371/journal.pone.0049354

Schüller, M. (2011). Evidence for a role of bathymetry and emergence in speciation in the genus Glycera (Glyceridae, Polychaeta) from the deep Eastern Weddell Sea. Polar Biology 34(4), 549–564.
http://dx.doi.org/10.1007/s00300-010-0913-x

Strugnell, J.M., Rogers, A.D., Prodöhl, P.A., Collins, M.A. & Allcock, A.L. (2008) The thermohaline expressway: Antarctica as a centre of origin for deep-sea octopuses. Cladistics, 24, 853–860.
http://dx.doi.org/10.1111/j.1096-0031.2008.00234.x

Strugnell, J.M., Watts, P.C., Smith, P.J. & Allcock, A.L. (2012) Persistent genetic signatures of historic climatic events in an Antarctic octopus. Molecular Ecology, 21, 2775–2787.
http://dx.doi.org/10.1111/j.1365-294x.2012.05572.x

Thatje, S. (2005) The future fate of the Antarctic marine biota? Trends in Ecology and Evolution, 20(8), 418–419.
http://dx.doi.org/10.1016/j.tree.2005.07.010

Thatje, S., Hillenbrand, C.D. & Larter, R. (2005) On the origin of Antarctic marine benthic community structure. Trends in Ecology and Evolution, 20, 534–540.

Thatje, S., Hillenbrand, C.D., Mackensen, A. & Larter, R. (2008) Life hung by a thread: endurance of Antarctic fauna in glacial periods. Ecology, 89, 682–692.
http://dx.doi.org/10.1890/07-0498.1

Thuy, B., Gale, A.S., Kroh, A., Kucera, M., Numberger-Thuy, L.D., Reich, M. & Stöhr, S. (2012) Ancient origin of the modern deep-sea fauna. Plos One, 7(10), 1–11.

Wilson, G.D.F. & Hessler, R.R. (1987) Speciation in the Deep Sea. Annual Reviews in Ecology and Systematics, 18, 185–207.
http://dx.doi.org/10.1371/journal.pone.0046913

Würzberg, L., Brandt, A., Peters, J. & Schüller, M. (2011). Diet insights of deep-sea polychaetes derived from fatty acid analyses Deep-Sea Research II, 58(1–2), 153–162.
http://dx.doi.org/10.1016/j.dsr2.2010.10.014


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