Introduction to ANDEEP (ANtarctic benthic DEEP-sea biodiversity: colonization history and recent community patterns)—a tribute to Howard L. Sanders

Brandt, Angelika; Broyer, Claude De; Gooday, Andrew J.; Hilbig, Brigitte; Thomson, M.R.A.

doi:10.1016/j.dsr2.2004.08.006

Cited by 86 publications

(60 citation statements)

References 13 publications

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“…Species accumulation curves can be compiled for individual sampling programmes and can (if supported by the data, and accepting the inherent assumptions) be extrapolated to asymptotic richness or to greater spatial extent (Grassle and Maciolek, 1992). For example, the ANDEEP I-III expeditions (Brandt et al, 2004a(Brandt et al, , b, 2007a (Mora et al, 2008) suggests that the inventory of isopods from the benthic deep SO is ∼ 68% complete (Fig. 9), with around 314 species remaining to be discovered (but note: these data are from epibenthic sleds only, and the approach assumes that the habitat is well-sampled).…”

Section: Methodsmentioning

confidence: 99%

“…The multi-model approach incorporates the uncertainty associated with selecting the "best" model to fit to data. Sampling data are from Brandt et al (2007). Modelling approach follows Mora et al (2008) with revised confidence limit calculations.…”

Section: Methodsmentioning

confidence: 99%

“…Isopoda), more species are known in the benthic deep SO than on the Antarctic continental shelf (Brandt and Hilbig, 2004;Brandt and Ebbe, 2007;Brandt et al, 2007a, b, c). In many taxa, far more than 90% of the species collected in a typical abyssal sediment sample are new to science (e.g., Nematoda, Crustacea) and many of these (> 50%) are rare.…”

Section: High Levels Of New Biodiversity In the Southern Oceanmentioning

confidence: 99%

“…Our findings challenge suggestions that deep-sea diversity is depressed in the SO at least for the south Atlantic sector. Moreover, these data provide a basis for exploring the evolutionary significance of the varied biogeographic patterns observed in this remote environment (Brandt and Hilbig, 2004;Brandt et al, 2007b, c;Brandt and Ebbe, 2007 and references therein).…”

Section: High Levels Of New Biodiversity In the Southern Oceanmentioning

confidence: 99%

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Deep, diverse and definitely different: unique attributes of the world's largest ecosystem

et al. 2010

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Abstract. The deep sea, the largest biome on Earth, has a series of characteristics that make this environment both distinct from other marine and land ecosystems and unique for the entire planet. This review describes these patterns and processes, from geological settings to biological processes, biodiversity and biogeographical patterns. It concludes with a brief discussion of current threats from anthropogenic activities to deep-sea habitats and their fauna.Investigations of deep-sea habitats and their fauna began in the late 19th century. In the intervening years, technological developments and stimulating discoveries have promoted deep-sea research and changed our way of understanding life on the planet. Nevertheless, the deep sea is still mostly unknown and current discovery rates of both habitats and species remain high. The geological, physical and Correspondence to: E. Ramirez-Llodra (ezr@icm.csic.es) geochemical settings of the deep-sea floor and the water column form a series of different habitats with unique characteristics that support specific faunal communities. Since 1840, 28 new habitats/ecosystems have been discovered from the shelf break to the deep trenches and discoveries of new habitats are still happening in the early 21st century. However, for most of these habitats the global area covered is unknown or has been only very roughly estimated; an even smaller -indeed, minimal -proportion has actually been sampled and investigated. We currently perceive most of the deep-sea ecosystems as heterotrophic, depending ultimately on the flux on organic matter produced in the overlying surface ocean through photosynthesis. The resulting strong food limitation thus shapes deep-sea biota and communities, with exceptions only in reducing ecosystems such as inter alia hydrothermal vents or cold seeps. Here, chemoautolithotrophic bacteria play the role of primary producers fuelled by chemical energy sources rather than sunlight. Other ecosystems, such as seamounts, canyons or cold-water corals have an Published by Copernicus Publications on behalf of the European Geosciences Union. 2852 E. Ramirez-Llodra et al.: Unique attributes of the world's largest ecosystem increased productivity through specific physical processes, such as topographic modification of currents and enhanced transport of particles and detrital matter. Because of its unique abiotic attributes, the deep sea hosts a specialized fauna. Although there are no phyla unique to deep waters, at lower taxonomic levels the composition of the fauna is distinct from that found in the upper ocean. Amongst other characteristic patterns, deep-sea species may exhibit either gigantism or dwarfism, related to the decrease in food availability with depth. Food limitation on the seafloor and water column is also reflected in the trophic structure of heterotrophic deep-sea communities, which are adapted to low energy availability. In most of these heterotrophic habitats, the dominant megafauna is composed of detritivores, while filter feeders are abundant in...

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: High Levels Of New Biodiversity In the Southern Oceanmentioning

confidence: 99%

Section: High Levels Of New Biodiversity In the Southern Oceanmentioning

confidence: 99%

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Deep, diverse and definitely different: unique attributes of the world's largest ecosystem

et al. 2010

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“…All the species were collected during two cruises in the Southern Ocean, ANDEEP and EASIZ II. Information on these expeditions could be found in Brandt et al (2004a) and Brandt et al (2007a, b). Ostracods collected during these cruises have only been partially published, and they concerned Myodocopina family Cypridinidae (Chavtur et al 2010) and different Podocopid families:…”

Section: Introductionmentioning

confidence: 99%

On the genus Thaumatoconcha Kornicker and Sohn (Halocyprida) with description of two new species from Southern Ocean deep sea

Karanovic

Brandão

2011

Helgol Mar Res

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Two new Thaumatoconcha Kornicker and Sohn, 1976a species, T. dandani n. sp. and T. quasiporosa n. sp., have been described in the present paper. Both species have been collected during two expeditions to the Southern Ocean and are found in the deep sea. The first species is most closely related to T. caraionae Kornicker and Sohn, 1976a, but it has a very specific appearance of copulatory organ, anterior part being covered in small spines. The second species is most closely related to T. porosa Kornicker, 1985, and they differ in the carapace shape and morphology, while they have almost identical appearance of the male copulatory organ. A list of Thaumatocyprididae species and a key to the species of Thaumatoconcha are also presented in this paper.

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Marine Life in the Antarctic

Gutt

Hosie

Stoddart

2010

Life in the World's Oceans

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Introduction to ANDEEP (ANtarctic benthic DEEP-sea biodiversity: colonization history and recent community patterns)—a tribute to Howard L. Sanders

Cited by 86 publications

References 13 publications

Deep, diverse and definitely different: unique attributes of the world's largest ecosystem

Deep, diverse and definitely different: unique attributes of the world's largest ecosystem

On the genus Thaumatoconcha Kornicker and Sohn (Halocyprida) with description of two new species from Southern Ocean deep sea

Marine Life in the Antarctic

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