Results 141 to 150 of about 949 (177)

Environmental Assessment of Admiralty Bay, King George Island, Antarctica

2012
Monitoring has been developed by Antarctic Programmes such as Antarctic New Zealand (www.antarcticanz.govt.nz) and the US Antarctic Programme (USAP) (http://www.usap.gov) considering expansion of human activities and inevitable environmental.
Rosalinda C. Montone, Cristina E. Alvarez, Márcia C. Bícego, Elisabete S. Braga, Tania A. S. Brito, Lúcia S. Campos, Roberto F. C. Fontes, Belmiro M. Castro, Thaïs N. Corbisier, Heitor Evangelista, Marcio Francelino, Vicente Gomes, Rosane G. Ito, Helena P. Lavrado, Neusa Paes Leme, Michel M. Mahiques, César C. Martins, Cristina R. Nakayama, Phan V. Ngan, Vivian H. Pellizari, Antonio B. Pereira, Monica A. V. Petti, Martin Sander, Carlos E. G. R. Schaefer, Rolf R. Weber   +24 more
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Firmicutes in different soils of Admiralty Bay, King George Island, Antarctica

Polar Biology, 2019
The Antarctic continent is known for its harsh conditions, but it can sustain well-adapted microorganisms that are able to survive in these extreme conditions. Different bacterial phyla are found predominating the soils of Antarctic Peninsula including those of King George Island, which is part of the South Shetlands archipelago. It has been previously
Larissa R. Ramos, Renata E. Vollú, Diogo Jurelevicius, Alexandre S. Rosado, Lucy Seldin   +4 more
openaire   +1 more source

Shifts in microphytoplankton species and cell size at Admiralty Bay, Antarctica

Antarctic Science, 2014
AbstractPhytoplankton (>15 µm) was investigated in three shallow coastal areas at Admiralty Bay (AB) between the summers of 2002–03 and 2008–09. Phytoplankton abundance was low (103cells l-1) and, over time, the prevailing cell size decreased due to a shift in phytoplankton dominant species from diatoms to dinoflagellates.In situand remote sensing ...
Priscila Kienteca Lange, Denise Rivera Tenenbaum, Virgínia Maria Tavano, Rodolfo Paranhos, Lucia De Siqueira Campos   +4 more
openaire   +2 more sources

Mercury and methylmercury in the benthic organisms of Admiralty Bay (Antarctica).

2022
<p>There are only few studies on the concentration of mercury in organisms inhabiting the polar regions, in particular those living in Antarctica. Therefore, it is difficult to accurately illustrate the toxic effects of mercury on the local fauna.
Małgorzata Jarzynowska, Dominika Saniewska, Michał Saniewski, Piotr Bałazy   +3 more
openaire   +1 more source

Genesis, properties and classification of Cryosols from Admiralty Bay, maritime Antarctica

Geoderma, 2008
Abstract Soils from maritime Antarctica are different than those from other Antarctic climatic zones and are among the least studied soils in Antarctica. We here present analytical and morphological data for the main soils found in Admiralty Bay, King George Island in the South Shetland Group.
Felipe N.B. Simas, Carlos Ernesto G.R. Schaefer, Manoel R. Albuquerque Filho, Marcio Rocha Francelino, Elpídio I. Fernandes Filho, Liovando M. da Costa   +5 more
openaire   +1 more source

Phosphorus in Antarctic surface marine sediments - chemical speciation in Admiralty Bay

Antarctic Science, 2013
AbstractThis study describes the relation of the phosphorus chemical speciation in surface sediments with input processes in Admiralty Bay, King George Island, Antarctica. The sediments were analysed with a sequential extraction for phosphorus fractionation to measure: exchangeable P (Pexch), iron oxyhydroxide bound P (P-Fe), authigenic P (Auth-P ...
Gláucia B.B. Berbel, Elisabete S. Braga
openaire   +1 more source

Fish of Admiralty Bay (King George Island, South Shetland Islands, Antarctica)

Polar Biology, 1992
The species composition of the ichthyofauna of Admiralty Bay, King George Island was determined from results of sampling using bottom trawls, gill-nets and long-lines. Thirty-five species from 24 genera and 10 families (Table 1) were found. The number of species increased with depth (e.g. 7 species at 100 m, 14 species at 255 m and 21 species at 540 m),
KrzysztofE. Skora, AlexeyV. Neyelov
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Dusky Dolphins Influence Prey Accessibility for Seabirds in Admiralty Bay, New Zealand

Journal of Mammalogy, 2008
Although seabirds frequently aggregate with feeding delphinids, the benefits to seabirds of feeding with dolphins have been rarely reported. We examined how dusky dolphins (Lagenorhynchus obscurus) influenced prey accessibility for seabirds in Admiralty Bay, New Zealand.
Robin L. Vaughn, Bernd Würsig, Deborah S. Shelton, Lori L. Timm, Leslie A. Watson   +4 more
openaire   +1 more source

Long-term monitoring of Antarctic pinnipeds in Admiralty Bay (South Shetlands, Antarctica)

Acta Theriologica, 2002
Year-round monitoring of five Antarctic pinnipeds was conducted in Admiralty Bay from 1988 up to 2000. Two breeding species: southern elephant sealsMirounga leonina (Linnaeus, 1758) and Weddell sealsLeptonychotes weddellii (Lesson, 1826), were present throughout the year. Three other species: crabeater seals Lobodon carcinophagus (Hobron and Jacquinot,
Katarzyna Salwicka, Stanisław Rakusa-Suszczewski   +1 more
openaire   +1 more source

Biodiversity patterns of rock encrusting fauna from the shallow sublittoral of the Admiralty Bay

Marine Environmental Research, 2018
The Antarctic sublittoral is one of the most demanding habitat for polar bottom-dwelling organisms, as the disturbance of this zone is highly intense. Rapid changes in the marine environment, such as increases in atmosphere and surface water temperatures, can cause dramatic changes in biodiversity, especially in glacial fjords affected by heavy melt ...
Malgorzata, Krzeminska, Piotr, Kuklinski
openaire   +2 more sources