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Статті в журналах з теми "Antarctic benthos"

Автор: Grafiati

Опубліковано: 14 березня 2023

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1

Taboada, Sergi, Luis Francisco García-Fernández, Santiago Bueno, Jennifer Vázquez, Carmen Cuevas, and Conxita Avila. "Antitumoural activity in Antarctic and sub-Antarctic benthic organisms." Antarctic Science 22, no. 5 (2010): 494–507. http://dx.doi.org/10.1017/s0954102010000416.

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AbstractA prospecting search for antitumoural activity in polar benthic invertebrates was conducted on Antarctic and sub-Antarctic benthos in three different areas: Bouvet Island (sub-Antarctic), eastern Weddell Sea (Antarctica) and the South Shetland Islands (Antarctica). A total of 770 benthic invertebrate samples (corresponding to at least 290 different species) from 12 different phyla were assayed to establish their pharmacological potential against three human tumour cell lines (colorectal adenocarcinoma, lung carcinoma and breast adenocarcinoma). Bioassays resulted in 15 different specie

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2

Sahade, Ricardo, Cristian Lagger, Luciana Torre, et al. "Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem." Science Advances 1, no. 10 (2015): e1500050. http://dx.doi.org/10.1126/sciadv.1500050.

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The Antarctic Peninsula (AP) is one of the three places on Earth that registered the most intense warming in the last 50 years, almost five times the global mean. This warming has strongly affected the cryosphere, causing the largest ice-shelf collapses ever observed and the retreat of 87% of glaciers. Ecosystem responses, although increasingly predicted, have been mainly reported for pelagic systems. However, and despite most Antarctic species being benthic, responses in the Antarctic benthos have been detected in only a few species, and major effects at assemblage level are unknown. This is

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3

Barnes, David K. A., and Kathleen E. Conlan. "Disturbance, colonization and development of Antarctic benthic communities." Philosophical Transactions of the Royal Society B: Biological Sciences 362, no. 1477 (2006): 11–38. http://dx.doi.org/10.1098/rstb.2006.1951.

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A decade has yielded much progress in understanding polar disturbance and community recovery—mainly through quantifying ice scour rates, other disturbance levels, larval abundance and diversity, colonization rates and response of benthos to predicted climate change. The continental shelf around Antarctica is clearly subject to massive disturbance, but remarkably across so many scales. In summer, millions of icebergs from sizes smaller than cars to larger than countries ground out and gouge the sea floor and crush the benthic communities there, while the highest wind speeds create the highest w

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4

Brey, T., C. Dahm, M. Gorny, M. Klages, M. Stiller, and W. E. Arntz. "Do Antarctic benthic invertebrates show an extended level of eurybathy?" Antarctic Science 8, no. 1 (1996): 3–6. http://dx.doi.org/10.1017/s0954102096000028.

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Depth distribution data were compared for 172 European and 157 Antarctic benthic invertebrate species occurring in the respective shelf areas. Antarctic species showed significantly wider depth ranges in selected families of the groups Bivalvia, Gastropoda, Amphipoda and Decapoda. No differences were found in Polychaeta, Asteroidea and Ophiuroidea, where European species also showed comparatively wide bathymetric ranges. These extended levels of eurybathy in the Antarctic benthos may be interpreted either as an evolutionary adaptation or pre-adaptation to the oscillation of shelf ice extension

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5

Menna, F., E. Nocerino, S. Malek, F. Remondino, and S. Schiaparelli. "A COMBINED APPROACH FOR LONG-TERM MONITORING OF BENTHOS IN ANTARCTICA WITH UNDERWATER PHOTOGRAMMETRY AND IMAGE UNDERSTANDING." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B2-2022 (May 30, 2022): 935–43. http://dx.doi.org/10.5194/isprs-archives-xliii-b2-2022-935-2022.

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Abstract. Long-term monitoring projects are becoming more than ever crucial in assessing the effects of climate change on marine communities, especially in Antarctica, where these changes are expected to be particularly dramatic. Detailed studies of the Antarctic benthos are in fact particularly important for a better understanding of benthos dynamics and potential climate-driven shifts. Here, due to the extreme fragility of benthic communities, non-destructive techniques represent the best solution in long-term monitoring programs. In this paper we report new results from 2017, 2018, 2019 pho

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6

Avila, Conxita, Xavier Buñuel, Francesc Carmona, Albert Cotado, Oriol Sacristán-Soriano, and Carlos Angulo-Preckler. "Would Antarctic Marine Benthos Survive Alien Species Invasions? What Chemical Ecology May Tell Us." Marine Drugs 20, no. 9 (2022): 543. http://dx.doi.org/10.3390/md20090543.

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Many Antarctic marine benthic macroinvertebrates are chemically protected against predation by marine natural products of different types. Antarctic potential predators mostly include sea stars (macropredators) and amphipod crustaceans (micropredators) living in the same areas (sympatric). Recently, alien species (allopatric) have been reported to reach the Antarctic coasts, while deep-water crabs are suggested to be more often present in shallower waters. We decided to investigate the effect of the chemical defenses of 29 representative Antarctic marine benthic macroinvertebrates from seven d

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7

Post, Alexandra L., Philip E. O’Brien, Robin J. Beaman, Martin J. Riddle, and Laura De Santis. "Physical controls on deep water coral communities on the George V Land slope, East Antarctica." Antarctic Science 22, no. 4 (2010): 371–78. http://dx.doi.org/10.1017/s0954102010000180.

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AbstractDense coral-sponge communities on the upper continental slope at 570–950 m off George V Land, East Antarctica have been identified as Vulnerable Marine Ecosystems. The challenge is now to understand their probable distribution on other parts of the Antarctic margin. We propose three main factors governing their distribution on the George V margin: 1) their depth in relation to iceberg scouring, 2) the flow of organic-rich bottom waters, and 3) their location at the head of shelf cutting canyons. Icebergs scour to 500 m in this region and the lack of such disturbance is a probable facto

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8

Schram, Julie B., Margaret O. Amsler, Aaron W. E. Galloway, Charles D. Amsler, and James B. McClintock. "Fatty acid trophic transfer of Antarctic algae to a sympatric amphipod consumer." Antarctic Science 31, no. 6 (2019): 315–16. http://dx.doi.org/10.1017/s0954102019000397.

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The shallow benthos along the western Antarctic Peninsula supports brown macroalgal forests with dense amphipod assemblages, commonly including Gondogeneia antarctica (Amsler et al. 2014). Gondogeneia antarctica and most other amphipods are chemically deterred from consuming the macroalgae (Amsler et al. 2014). They primarily consume diatoms, other microalgae, filamentous macroalgae and a few undefended macroalgal species, including Palmaria decipiens (Aumack et al. 2017). Although unpalatable when alive, G. antarctica and other amphipods will consume the chemically defended brown algae Himant

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9

Gutt, Julian, and Thomas Schickan. "Epibiotic relationships in the Antarctic benthos." Antarctic Science 10, no. 4 (1998): 398–405. http://dx.doi.org/10.1017/s0954102098000480.

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On the high Antarctic shelf, 374 different epibiotic relationships of the megafauna were photographically registered and statistically analysed. These comprised 47 different epibiotic and 96 substratum taxa and had obvious differences in abundance and presence in three different benthic assemblages. Six abundant obligatory relationships in which the epibiont occurred almost exclusively on one type of substratum had highly specialized epibionts. For an additional eight relationships, a statistical test revealed that the epibionts preferred specific living and elevated mineral substrata. Most of

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10

García-Alvarez, O., V. Urgorri, and L. von Salvini-Plawen. "Two new species of Dorymenia (Mollusca: Solenogastres: Proneomeniidae) from the South Shetland Islands (Antarctica)." Journal of the Marine Biological Association of the United Kingdom 80, no. 5 (2000): 835–42. http://dx.doi.org/10.1017/s0025315400002812.

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This paper describes two new species from the genus Dorymenia (Mollusca: Solenogastres: Proneomeniidae): D. hesperidesi sp. nov. and D. menchuescribanae sp. nov., collected during the Spanish oceanographic expeditions for the study of Antarctic benthos, BENTART'94 and BENTART'95, carried out in the area of the Livingston Island (South Shetland Islands, Antarctica). A comparative study of main specific characteristics of species belonging to the genus Dorymenia found off the South Shetland Islands and in the Bransfield Strait (Antarctica), is also included.

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11

Barnes, David K. A. "A benthic richness hotspot in the Southern Ocean: slope and shelf cryptic benthos of Shag Rocks." Antarctic Science 20, no. 3 (2008): 263–70. http://dx.doi.org/10.1017/s0954102008001089.

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AbstractShelf and slope cryptofauna were sampled at the most northerly shelf environments within the Southern Ocean, Shag Rocks. The area is remarkably rich, with seven phyla, 10 classes, 40 families and 81 species on 0.36 m2 of shelf boulders. A large proportion of genera and species found had not been seen there before, some were new to science and species accumulation curves did not approach an asymptote. Current estimates of benthic diversity are clearly still too low if even well studied locations and depths reveal so much novelty with such little sample effort. Proportions of new species

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12

Takahashi, Masanori, and Tetsuo Iwami. "The summer diet of demersal fish at the South Shetland Islands." Antarctic Science 9, no. 4 (1997): 407–13. http://dx.doi.org/10.1017/s0954102097000527.

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The stomach contents of demersal fish in late January 1982 were analysed. Samples were taken at 100, 300 and 500 m depth south of Elephant Island, Bransfield Strait and north of Livingston Island, and at 800 m to the east of Smith Island. Fifty four taxa of fish belonging to 11 families were collected. The diets of 2101 fish representing 38 taxa were examined. These were classified into three categories, fish feeders, krill feeders and benthos feeders. Fish prey species fed on krill and/or benthos. Krill was a major dietary component for 32 (84.2%) out of 38 taxa. Gobionotothen gibberifrons wa

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13

BARRERA-ORO, ESTEBAN. "The role of fish in the Antarctic marine food web: differences between inshore and offshore waters in the southern Scotia Arc and west Antarctic Peninsula." Antarctic Science 14, no. 4 (2002): 293–309. http://dx.doi.org/10.1017/s0954102002000111.

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The role of fish in the Antarctic food web in inshore and offshore waters is analysed, taking as an example the coastal marine communities of the southern Scotia Arc (South Orkney Islands and South Shetland Islands) and the west Antarctic Peninsula. Inshore, the ecological role of demersal fish is more important than that of krill. There, demersal fish are major consumers of benthos and also feed on zooplankton (mainly krill in summer). They are links between lower and upper levels of the food web and are common prey of other fish, birds and seals. Offshore, demersal fish depend less on bentho

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14

Bowden, DA. "Seasonality of recruitment in Antarctic sessile marine benthos." Marine Ecology Progress Series 297 (2005): 101–18. http://dx.doi.org/10.3354/meps297101.

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15

Aronson, Richard B., Sven Thatje, Andrew Clarke, et al. "Climate Change and Invasibility of the Antarctic Benthos." Annual Review of Ecology, Evolution, and Systematics 38, no. 1 (2007): 129–54. http://dx.doi.org/10.1146/annurev.ecolsys.38.091206.095525.

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16

Gallardo, V. A. "The sublittoral macrofaunal benthos of the Antarctic shelf." Environment International 13, no. 1 (1987): 71–81. http://dx.doi.org/10.1016/0160-4120(87)90045-6.

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17

Hempel, Gotthilf. "Antarctic marine biology – two centuries of research." Antarctic Science 19, no. 2 (2007): 195–203. http://dx.doi.org/10.1017/s0954102007000272.

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AbstractWhilst interest in the economic exploitation of the Southern Ocean resources dates back to the last part of the 18th century scientific research into elements of the marine ecosystem only began in the mid 19th century. As far as plankton and benthos are concerned the great exploratory voyages and expeditions laid a firm taxonomic foundation on which later work was built. The most outstanding expedition contribution was from the Discovery Investigations. Concern about uncontrolled exploitation stimulated the SCAR BIOMASS programme which in turn led to CCAMLR with its modelling programme

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18

Isla, Enrique. "THE SOUTHERN OCEAN: OUR BEST OPPORTUNITY?" Arquivos de Ciências do Mar 55, Especial (2022): 180–90. http://dx.doi.org/10.32360/acmar.v55iespecial.78406.

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The Southern Ocean has a significant importance in global climate regulation because its great potential to sequester atmospheric carbon and its enormous contribution to the transport of heat and mass in the global ocean. Antarctic benthos presents unique characteristics developed after millions of years of evolution and greatly contribute to the maintenance of the global biodiversity and genetic pool. Ongoing anthropogenic pressure seriously threaten Southern Ocean’s current characteristics and the ecosystems services they provide. In my opinion, individual actions toward environmental protec

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19

Clarke, A. "Ecological stoichiometry in six species of Antarctic marine benthos." Marine Ecology Progress Series 369 (October 13, 2008): 25–37. http://dx.doi.org/10.3354/meps07670.

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20

Clarke, Andrew, and Helen J. Peat. "Seasonal and interannual variability of feeding in Antarctic benthos." Limnology and Oceanography 67, no. 4 (2022): 962–72. http://dx.doi.org/10.1002/lno.12048.

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21

Barnes, David K. A., Andrew Fleming, Chester J. Sands, Maria Liliana Quartino, and Dolores Deregibus. "Icebergs, sea ice, blue carbon and Antarctic climate feedbacks." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376, no. 2122 (2018): 20170176. http://dx.doi.org/10.1098/rsta.2017.0176.

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Sea ice, including icebergs, has a complex relationship with the carbon held within animals (blue carbon) in the polar regions. Sea-ice losses around West Antarctica's continental shelf generate longer phytoplankton blooms but also make it a hotspot for coastal iceberg disturbance. This matters because in polar regions ice scour limits blue carbon storage ecosystem services, which work as a powerful negative feedback on climate change (less sea ice increases phytoplankton blooms, benthic growth, seabed carbon and sequestration). This resets benthic biota succession (maintaining regional biodiv

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22

Sands, Chester J., Huw J. Griffiths, Rachel V. Downey, David K. A. Barnes, Katrin Linse, and Rafael Martín-Ledo. "Observations of the ophiuroids from the West Antarctic sector of the Southern Ocean." Antarctic Science 25, no. 1 (2012): 3–10. http://dx.doi.org/10.1017/s0954102012000612.

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AbstractOphiuroids are a conspicuous and often dominant component of the Antarctic continental shelf benthos. Here we report on the ophiuroids collected from the Burdwood Bank, off the Patagonian Shelf, through the shallow water areas of the Scotia Arc, down the west Antarctic Peninsula and as far south as Pine Island Bay in the eastern Amundsen Sea. This preliminary and primarily pattern based study identifies some regional differences in assemblages and highlights the role of the Antarctic Circumpolar Current as a barrier, as well as a facilitator, to dispersal. In order to effectively compa

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23

Calizza, Edoardo, Giulio Careddu, Simona Sporta Caputi, Loreto Rossi, and Maria Letizia Costantini. "Time- and depth-wise trophic niche shifts in Antarctic benthos." PLOS ONE 13, no. 3 (2018): e0194796. http://dx.doi.org/10.1371/journal.pone.0194796.

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24

Teixidó, N., J. Garrabou, J. Gutt, and WE Arntz. "Recovery in Antarctic benthos after iceberg disturbance: trends in benthic composition, abundance and growth forms." Marine Ecology Progress Series 278 (2004): 1–16. http://dx.doi.org/10.3354/meps278001.

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25

Ríos, Pilar, and Javier Cristobo. "A new species of Phorbas (Porifera: Poecilosclerida) from the Bellingshausen Sea, Antarctica." Journal of the Marine Biological Association of the United Kingdom 87, no. 6 (2007): 1485–90. http://dx.doi.org/10.1017/s0025315407058079.

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Phorbas is a common genus with cosmopolitan distribution. A new species of sponge, Phorbas megasigma sp. nov. (Porifera: Poecilosclerida: Hymedesmiidae) is described from material collected during the third Spanish expedition on the study of the Antarctic benthos, ‘Bentart 03’. Phorbas megasigma is closely related to P. nexus but differs in the possession of arcuate chelae and very big sigmata as microscleres.

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26

Piazza, P., V. Cummings, D. Lohrer, et al. "DIVERS-OPERATED UNDERWATER PHOTOGRAMMETRY: APPLICATIONS IN THE STUDY OF ANTARCTIC BENTHOS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2 (May 30, 2018): 885–92. http://dx.doi.org/10.5194/isprs-archives-xlii-2-885-2018.

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Ecological studies about marine benthic communities received a major leap from the application of a variety of non-destructive sampling and mapping techniques based on underwater image and video recording. The well-established scientific diving practice consists in the acquisition of single path or ‘round-trip’ over elongated transects, with the imaging device oriented in a nadir looking direction. As it may be expected, the application of automatic image processing procedures to data not specifically acquired for 3D modelling can be risky, especially if proper tools for assessing the quality

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27

Barnes, David K. A., and Terri Souster. "Reduced survival of Antarctic benthos linked to climate-induced iceberg scouring." Nature Climate Change 1, no. 7 (2011): 365–68. http://dx.doi.org/10.1038/nclimate1232.

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28

Torre, Luciana, Paulo C. Carmona Tabares, Fernando Momo, João F. C. A. Meyer, and Ricardo Sahade. "Climate change effects on Antarctic benthos: a spatially explicit model approach." Climatic Change 141, no. 4 (2017): 733–46. http://dx.doi.org/10.1007/s10584-017-1915-2.

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29

CLARKE, ANDREW, RICHARD B. ARONSON, J. ALISTAIR CRAME, JOSEP-MARIA GILI, and DANIEL B. BLAKE. "Evolution and diversity of the benthic fauna of the Southern Ocean continental shelf." Antarctic Science 16, no. 4 (2004): 559–68. http://dx.doi.org/10.1017/s0954102004002329.

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The modern benthic fauna of the Antarctic continental shelf is characterized by the lack of active, skeleton-breaking (durophagous) predators such as crabs, lobsters and many fish, and the dominance in many areas of epifaunal suspension feeders. It has often been remarked that these ecological characteristics give the fauna a distinctly Palaeozoic feel, with the assumption that it may be an evolutionary relic. We now know that this is not so, and fossil evidence shows clearly that many of the taxa and life-styles that are absent now were previously present. The modern fauna has been shaped by

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30

Pasotti, Francesca, Elena Manini, Donato Giovannelli, et al. "Antarctic shallow water benthos in an area of recent rapid glacier retreat." Marine Ecology 36, no. 3 (2014): 716–33. http://dx.doi.org/10.1111/maec.12179.

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31

Piazza, Paola, Stefano Antonio Gattone, Alice Guzzi, and Stefano Schiaparelli. "Towards a robust baseline for long-term monitoring of Antarctic coastal benthos." Hydrobiologia 847, no. 7 (2020): 1753–71. http://dx.doi.org/10.1007/s10750-020-04177-2.

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32

Amsler, Charles D., James B. McClintock, and Bill J. Baker. "Amphipods exclude filamentous algae from the Western Antarctic Peninsula benthos: experimental evidence." Polar Biology 35, no. 2 (2011): 171–77. http://dx.doi.org/10.1007/s00300-011-1049-3.

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33

Palmisano, Anna C., Robert A. Wharton, Sonja E. Cronin, and David J. Des Marais. "Lipophilic pigments from the benthos of a perennially ice-covered Antarctic Lake." Hydrobiologia 178, no. 1 (1989): 73–80. http://dx.doi.org/10.1007/bf00006114.

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34

Eastman, Joseph T., Margaret O. Amsler, Richard B. Aronson, et al. "Photographic survey of benthos provides insights into the Antarctic fish fauna from the Marguerite Bay slope and the Amundsen Sea." Antarctic Science 25, no. 1 (2012): 31–43. http://dx.doi.org/10.1017/s0954102012000697.

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AbstractWe reviewed photographic images of fishes from depths of 381–2282 m in Marguerite Bay and 405–2007 m in the Amundsen Sea. Marguerite Bay fishes were 33% notothenioids and 67% non-notothenioids. Channichthyids (47%) and nototheniids (44%) were the most abundant notothenioids. The deep-living channichthyidChionobathyscus dewitti(74%) and the nototheniid genusTrematomus(66%) were the most abundant taxa within these two families. The most abundant non-notothenioids were the macrouridMacrourus whitsoni(72%) and zoarcids (18%). Amundsen Sea fishes were 87% notothenioids and 13% non-nototheni

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35

Bowden, DA, A. Clarke, LS Peck, and DKA Barnes. "Antarctic sessile marine benthos: colonisation and growth on artificial substrata over three years." Marine Ecology Progress Series 316 (July 3, 2006): 1–16. http://dx.doi.org/10.3354/meps316001.

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36

Barnes, DKA, and R. Arnold. "A growth cline in encrusting benthos along a latitudinal gradient within Antarctic waters." Marine Ecology Progress Series 210 (2001): 85–91. http://dx.doi.org/10.3354/meps210085.

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37

Gutt, J., and D. Piepenburg. "Scale-dependent impact on diversity of Antarctic benthos caused by grounding of icebergs." Marine Ecology Progress Series 253 (2003): 77–83. http://dx.doi.org/10.3354/meps253077.

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38

Reichardt, W. "Differential temperature effects on the efficiency of carbon pathways in Antarctic marine benthos." Marine Ecology Progress Series 40 (1987): 127–35. http://dx.doi.org/10.3354/meps040127.

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39

Thatje, S. "Effects of Capability for Dispersal on the Evolution of Diversity in Antarctic Benthos." Integrative and Comparative Biology 52, no. 4 (2012): 470–82. http://dx.doi.org/10.1093/icb/ics105.

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40

Gerdes, D. "Antarctic trials of the multi-box corer, a new device for benthos sampling." Polar Record 26, no. 156 (1990): 35–38. http://dx.doi.org/10.1017/s0032247400022749.

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ABSTRACTA multi-box corer is described, recently designed and constructed as part of the Euromar Project, through cooperation between the Alfred Wegener Institute for Polar and Marine Research and Fa. MAK Krupp Maschinenbau GmbH Kiel. Deployed successfully during the RV Polarstern expedition ANT VI/3 early in 1988, the multiple corer provided nine samples over a sampling area of 2–3 m2, thus obtaining more reliable abundance values than a single corer, and providing insights into the spatial variability of macrobenthic organisms. Equipped with a UW-video, the corer facilitates controlled econo

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Murtagh, Gareth J., Paul S. Dyer, Andrew Rogerson, Geraldine V. Nash, and Johanna Laybourn-Parry. "A new species of Tetramitus in the benthos of a saline antarctic lake." European Journal of Protistology 37, no. 4 (2002): 437–43. http://dx.doi.org/10.1078/0932-4739-00836.

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42

Barnes, DKA, HJ Griffiths, and S. Kaiser. "Geographic range shift responses to climate change by Antarctic benthos: where we should look." Marine Ecology Progress Series 393 (October 30, 2009): 13–26. http://dx.doi.org/10.3354/meps08246.

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Baird, Helena Phoenix, Karen Joy Miller, and Jonathan Sean Stark. "Genetic Population Structure in the Antarctic Benthos: Insights from the Widespread Amphipod, Orchomenella franklini." PLoS ONE 7, no. 3 (2012): e34363. http://dx.doi.org/10.1371/journal.pone.0034363.

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44

Jazdzewski, Krzysztof, Claude Broyer, Magdalena Pudlarz, and Dariusz Zielinski. "Seasonal fluctuations of vagile benthos in the uppermost sublittoral of a maritime Antarctic fjord." Polar Biology 24, no. 12 (2001): 910–17. http://dx.doi.org/10.1007/s003000100299.

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45

Held, Christoph, and Florian Leese. "The utility of fast evolving molecular markers for studying speciation in the Antarctic benthos." Polar Biology 30, no. 4 (2006): 513–21. http://dx.doi.org/10.1007/s00300-006-0210-x.

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46

Frinault, Bétina A. V., Frazer D. W. Christie, Sarah E. Fawcett, et al. "Antarctic Seabed Assemblages in an Ice-Shelf-Adjacent Polynya, Western Weddell Sea." Biology 11, no. 12 (2022): 1705. http://dx.doi.org/10.3390/biology11121705.

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Ice shelves cover ~1.6 million km2 of the Antarctic continental shelf and are sensitive indicators of climate change. With ice-shelf retreat, aphotic marine environments transform into new open-water spaces of photo-induced primary production and associated organic matter export to the benthos. Predicting how Antarctic seafloor assemblages may develop following ice-shelf loss requires knowledge of assemblages bordering the ice-shelf margins, which are relatively undocumented. This study investigated seafloor assemblages, by taxa and functional groups, in a coastal polynya adjacent to the Larse

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47

Dorokhova, Evgenia V., Francisco J. Rodríguez-Tovar, Dmitry V. Dorokhov, et al. "Landscape Mapping, Ichnological and Benthic Foraminifera Trends in a Deep-Water Gateway, Discovery Gap, NE Atlantic." Geosciences 11, no. 11 (2021): 474. http://dx.doi.org/10.3390/geosciences11110474.

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Multidisciplinary studies have allowed us to describe the abiotic landscapes and, thus, reveal the ichnological and benthic foraminifera trends in a deep-water gateway. Mesoscale landscape mapping is presented based on the bathymetric position index, substrate types and near-bottom water temperature. Four sediment cores, retrieved from the entrance, centre and exit of the gap, were subject to computed tomography, ichnological and benthic foraminifera studies. A high diversity of abiotic landscapes in the relatively small area of Discovery Gap is detected and its landscape is characterized by 2

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48

Brasier, Madeleine J., Helena Wiklund, Lenka Neal, et al. "DNA barcoding uncovers cryptic diversity in 50% of deep-sea Antarctic polychaetes." Royal Society Open Science 3, no. 11 (2016): 160432. http://dx.doi.org/10.1098/rsos.160432.

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The Antarctic marine environment is a diverse ecosystem currently experiencing some of the fastest rates of climatic change. The documentation and management of these changes requires accurate estimates of species diversity. Recently, there has been an increased recognition of the abundance and importance of cryptic species, i.e. those that are morphologically identical but genetically distinct. This article presents the largest genetic investigation into the prevalence of cryptic polychaete species within the deep Antarctic benthos to date. We uncover cryptic diversity in 50% of the 15 morpho

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49

Brandt, A., C. De Broyer, I. De Mesel, et al. "The biodiversity of the deep Southern Ocean benthos." Philosophical Transactions of the Royal Society B: Biological Sciences 362, no. 1477 (2006): 39–66. http://dx.doi.org/10.1098/rstb.2006.1952.

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Our knowledge of the biodiversity of the Southern Ocean (SO) deep benthos is scarce. In this review, we describe the general biodiversity patterns of meio-, macro- and megafaunal taxa, based on historical and recent expeditions, and against the background of the geological events and phylogenetic relationships that have influenced the biodiversity and evolution of the investigated taxa. The relationship of the fauna to environmental parameters, such as water depth, sediment type, food availability and carbonate solubility, as well as species interrelationships, probably have shaped present-day

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Isla, Enrique, Dieter Gerdes, Albert Palanques, Núria Teixidó, Wolf Arntz, and Pere Puig. "Relationships between Antarctic coastal and deep-sea particle fluxes: implications for the deep-sea benthos." Polar Biology 29, no. 4 (2005): 249–56. http://dx.doi.org/10.1007/s00300-005-0046-9.

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