scholarly journals Population Structure of Nacella Concinna (Strebel, 1908) (Gastropoda Nacellidae) at Admiralty Bay, King George Island, Antarctica, in Austral Summer 2010/2011.

2013 ◽  
pp. 119-121
Author(s):  
Maria Isabel Sarvat de Figueiredo ◽  
Helena Passeri Lavrado
2016 ◽  
pp. 64-68
Author(s):  
José Juan Barrera-Alba ◽  
Vinícius Henrique Reis ◽  
Márcio Murilo Barboza Tenório ◽  
Denise Rivera Tenenbaum

Polar Record ◽  
2018 ◽  
Vol 54 (1) ◽  
pp. 29-35 ◽  
Author(s):  
Margéli Pereira de Albuquerque ◽  
Jair Putzke ◽  
Adriano Luis Schünemann ◽  
Frederico Costa Beber Vieira ◽  
Filipe de Carvalho Victoria ◽  
...  

ABSTRACTThis paper presents the details of lichens and mosses found on whale vertebrae substratum in the Admiralty Bay area, King George Island, Antarctica. Samples were taken in the coastal area at Hennequin Point, a relict of the Antarctic whaling era. The samples were collected from the upper surface of the whale bones found in the study area during the austral summer 2010–2011. A total of 15 lichen and two moss species were found. All species sampled are known in the Admiralty Bay area, both as pioneers and in more advanced succession stages in ice-free areas. These results suggest that the colonisation of whale bones is not new for Antarctic plants, but it is an additional substrate on which these plants can develop. A map showing the distribution of colonised bones and details of the usual substrata for the lichens and mosses found in this study are provided.


2016 ◽  
pp. 59-63
Author(s):  
Mariana Vanzan ◽  
José Juan Barrera-Alba ◽  
Márcio Murilo Barboza Tenório ◽  
Erika Werneck e Werneck ◽  
Denise Rivera Tenenbaum

Polar Science ◽  
2011 ◽  
Vol 5 (2) ◽  
pp. 146-165 ◽  
Author(s):  
Atsushi Ono ◽  
Masato Moteki ◽  
Kazuo Amakasu ◽  
Ryoji Toda ◽  
Naho Horimoto ◽  
...  

2009 ◽  
Vol 21 (5) ◽  
pp. 439-448 ◽  
Author(s):  
Wojciech Majewski ◽  
Andrzej Tatur

AbstractCribroelphidium webbi sp. nov. is the only adequately described sub-Recent elphidiid foraminifer from Antarctica. In Admiralty Bay (King George Island, South Shetland Islands), it is found at several locations within inner fiord setting at water depths between 33 and 165 m, but most commonly shallower than 100 m. In outer basins this foraminifer is absent. In the cores analysed, C. webbi sp. nov. is present in well-constrained sub-Recent horizons that are clearly related to climate warming and deglaciation. These horizons represent a diachronous facies marker rather than a single stratigraphic layer. Cribroelphidium webbi sp. nov. shows clear association with retreating tidewater glaciers, therefore it is an important sensitive glacier-proximal indicator. It appears that it shares similar ecologic affinities with Cribroelphidium excavatum clavatum, which is widely distributed throughout the Arctic.


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