Hydrography, Krill and Fish and Their Possible Relationships Around Elephant Island

1988 ◽  
pp. 183-198 ◽  
Author(s):  
F. Nast ◽  
K.-H. Kock ◽  
D. Sahrhage ◽  
M. Stein ◽  
J. E. Tiedtke
Keyword(s):  
Elephant Island

Serological screening for Brucella spp. and Leptospira spp. antibodies in southern elephant seals Mirounga leonina from Elephant Island, Antarctica, in 2003 and 2004

2020 ◽  
Vol 142 ◽  
pp. 161-170
Author(s):  
AM Sánchez-Sarmiento ◽  
V Ruoppolo ◽  
MMC Muelbert ◽  
JS Ferreira Neto ◽  
JL Catão-Dias
Keyword(s):  
Austral Summer ◽  
Agglutination Test ◽  
South Shetland Islands ◽  
Climate Change Scenarios ◽  
Mirounga Leonina ◽  
Serological Screening ◽  
Elephant Seals ◽  
Southern Elephant Seals ◽  
Monitoring And Surveillance ◽  
Elephant Island

Brucella spp. and Leptospira spp. antibodies were surveyed in 35 southern elephant seals (SESs) Mirounga leonina at Elephant Island (South Shetland Islands), western Antarctic peninsula, in the Austral summer of 2003 and 2004. The rose Bengal test and a commercial competitive ELISA (c-ELISA) were used to detect Brucella spp. exposure, and the microscopic agglutination test (MAT) with 22 live serovars was used to determine anti-Leptospira spp. antibodies. We found evidence of Brucella spp. exposure in 3 of 35 (8.6%) SESs tested via the c-ELISA displaying high percentage inhibition (PI), similar to other studies in pinnipeds in which Brucella spp. antibodies have been determined. Two of the 3 positives were pups (PI = 70.4 and 86.6%), while the third was an adult female (PI = 48.8%). The 3 c-ELISA positive SESs were additionally tested via the serum agglutination test but were found to be negative. All individuals were negative for antibodies against 22 Leptospira spp. serovars by MAT. These results contribute to the knowledge and monitoring of zoonotic pathogens with epizootic potential in Southern Ocean pinnipeds. Given the potential impact that pathogens may have on the abundance of wild (sometimes threatened and endangered) populations, constant monitoring and surveillance are required to prevent pathogen spread, particularly under forecast climate change scenarios.

scholarly journals The Brazilian research contribution to knowledge of the plant communities from Antarctic ice free areas

2013 ◽  
Vol 85 (3) ◽  
pp. 923-935 ◽  
Author(s):  
ANTONIO B. PEREIRA ◽  
JAIR PUTZKE
Keyword(s):  
Plant Communities ◽  
Soil Microbial Communities ◽  
Field Work ◽  
Plant Biology ◽  
Biotechnological Applications ◽  
King George Island ◽  
Plant Taxonomy ◽  
Soil Microbial ◽  
Bird Colonies ◽  
Elephant Island

This work aims to summarize the results of research carried out by Brazilian researchers on the plant communities of Antarctic ice free areas during the last twenty five years. Since 1988 field work has been carried out in Elephant Island, King George Island, Nelson Island and Deception Island. During this period six papers were published on the chemistry of lichens, seven papers on plant taxonomy, five papers on plant biology, two studies on UVB photoprotection, three studies about the relationships between plant communities and bird colonies and eleven papers on plant communities from ice free areas. At the present, Brazilian botanists are researching the plant communities of Antarctic ice free areas in order to understand their relationships to soil microbial communities, the biodiversity, the distribution of the plants populations and their relationship with birds colonies. In addition to these activities, a group of Brazilian researchers are undertaking studies related to Antarctic plant genetic diversity, plant chemistry and their biotechnological applications.

Vertical distributions and relations of euphausiid populations off Elephant Island, March 1984

Polar Biology ◽  
1987 ◽  
Vol 7 (6) ◽  
pp. 363-373 ◽  
Author(s):  
Valerie J. Loeb ◽  
Eric Shulenberger
Keyword(s):  
Vertical Distributions ◽  
Elephant Island

scholarly journals Spheniscidite, a new phosphate mineral from Elephant Island, British Antarctic Territory

1986 ◽  
Vol 50 (356) ◽  
pp. 291-293 ◽  
Author(s):  
M. J. Wilson ◽  
D. C. Bain
Keyword(s):  
Soil Profile ◽  
Ammonium Phosphate ◽  
Unit Cell ◽  
Unit Cell Parameters ◽  
X Ray ◽  
Cell Parameters ◽  
Phosphate Mineral ◽  
Phosphate Solutions ◽  
Elephant Island

AbstractSpheniscidite is a new phosphate mineral occurring in a soil profile in an area of nesting penguins on Elephant Island. It is the NH4-dominant analogue of leucophosphite and has the formula (NH4,K)(Fe3+,Al)2 (PO4)2(OH) · 2H2O. It is monoclinic, P21/n with unit cell parameters a = 9.75, b = 9.63, c = 9.70 Å, β = 102° 34′, and Z = 4. The strongest X-ray lines are 6.79(100), 5.99(90), 3.05(45), 7.62(40) Å. Spheniscidite is thought to have formed by the interaction of ammonium phosphate solutions from penguin guano with micaceous and chloritic minerals in the soil. The name is for Sphenisciformes, the order name for penguins, and has been approved by the IMA Commission on New Minerals and Mineral Names.

scholarly journals The marine epilithic diatom Melosira brandinii sp. nov. (Bacillariophyta) from Elephant Island, Antarctic Peninsula, with comments on some related species

2001 ◽  
Vol 49 (1-2) ◽  
pp. 01-12
Author(s):  
Luciano F. Fernandes ◽  
Roseli M. de Souza-Mosimann
Keyword(s):  
New Species ◽  
Antarctic Peninsula ◽  
Related Species ◽  
Barents Sea ◽  
External Surface ◽  
Southern Brazil ◽  
Mantle Edge ◽  
Epilithic Diatom ◽  
A New Species ◽  
Elephant Island

A new species of epilithic diatom is described from samples collected near Elephant Island, Antarctic Peninsula. The cells of Melosira brandinii sp. nov. are joined in filamentous chains and attached by means of long mucilaginous stalks. The valves are circular with the valvar surface composed of irregularly arranged pentagonal Ioculi. Each loculus bears 6-12 pores on the external surface, opening to the innerside through rotae. The corona is only composed of coarse granules. A mantle is well developed, presenting rimoportulae and bearing coarse granules, which are more concentrated at the mantle edge. Comparisons with the related species Melosira arctica, M. moniliformis and M. nummuloides are made. Additionally, photomicrographs of M. arctica from the type material and Barents Sea, and of M. moniliformis from estuaries of Southern Brazil are included.

Tectonics and Geomorphology of Elephant Island, South Shetland Islands

Antarctica ◽  
2006 ◽  
pp. 277-281 ◽  
Author(s):  
Jerónimo López-Martínez ◽  
Rudolph A. J. Trouw ◽  
Jesús Galindo-Zaldívar ◽  
Adolfo Maestro ◽  
Luiz S. A. Simões ◽  
...  
Keyword(s):  
South Shetland Islands ◽  
Shetland Islands ◽  
Elephant Island

Extra-pair paternity and intraspecific brood parasitism in the Gentoo Penguin (Pygoscelis papua) on Elephant Island, Antarctica

Polar Biology ◽  
2020 ◽  
Vol 43 (7) ◽  
pp. 851-859
Author(s):  
Gisele Pires de Mendonça Dantas ◽  
Luana Gisele Gonzaga ◽  
Alana Silva da Silveira ◽  
Gabriela Bandasz Werle ◽  
Roberta da Cruz Piuco ◽  
...  
Keyword(s):  
Brood Parasitism ◽  
Gentoo Penguin ◽  
Intraspecific Brood Parasitism ◽  
Pygoscelis Papua ◽  
Extra Pair Paternity ◽  
Elephant Island

The composition of the coastal fish fauna around Elephant Island (South Shetland Islands, Antarctica)

Polar Biology ◽  
2000 ◽  
Vol 23 (12) ◽  
pp. 825-832 ◽  
Author(s):  
Karl-Hermann Kock ◽  
Christoph Stransky
Keyword(s):  
Fish Fauna ◽  
South Shetland Islands ◽  
Coastal Fish ◽  
Shetland Islands ◽  
Elephant Island
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