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Relevant bibliographies by topics / Antarctic benthos

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Journal articles

Academic literature on the topic 'Antarctic benthos'

Author: Grafiati

Published: 14 March 2023

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Journal articles on the topic "Antarctic benthos"

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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