Results 41 to 50 of about 221,873 (152)

Effects of hydrocarbon spills on the temperature and moisture regimes of Cryosols in the Ross Sea region [PDF]

, 2002
Hydrocarbon spills have occurred on Antarctic soils where fuel oils are utilized, moved or stored. We investigated the effects of hydrocarbon spills on soil temperature and moisture regimes by comparing the properties of existing oil contaminated sites ...
Paetzold, Ron F., Campbell, Iain B., Kimble, John M., Balks, Megan R., Aislabie, Jackie M.   +4 more
core   +1 more source

Tracking gonadal development in fish: An in vivo MRI study on polar cod, Boreogadus saida (Lepechin, 1774)

NMR in Biomedicine, Volume 37, Issue 12, December 2024.
MRI was applied to follow the gonadal development in male and female fishes from November to February. Adapted MRI protocols were used to visualise the morphology of the gonads and allowed to determine the oocyte diameter over time. This is of particular interest for monitoring development of internal organs of fish under different environmental ...
Nicole Vogt, Felizitas C. Wermter, Jasmine Nahrgang, Daniela Storch, Christian Bock   +4 more
wiley   +1 more source

Southern hemisphere atmospheric circulation: Impacts on Antarctic climate and reconstructions from Antarctic ice core data [PDF]

, 2010
The official pulished version can be accessed from the DOI below - Copyright @ 2010 Springer VerlagThe atmospheric circulation patterns in the Southern Hemisphere have had a significant impact on the climate of the Antarctic and there is much evidence ...
McGregor, G R, Russell, A, McGregor, G.R., Russell, A.   +3 more
core   +1 more source

Genetics in the Ocean's Twilight Zone: Population Structure of the Glacier Lanternfish Across Its Distribution Range

Evolutionary Applications, Volume 17, Issue 11, November 2024.
ABSTRACT The mesopelagic zone represents one of the few habitats that remains relatively untouched from anthropogenic activities. Among the many species inhabiting the north Atlantic mesopelagic zone, glacier lanternfish (Benthosema glaciale) is the most abundant and widely distributed.
María Quintela, Eva García‐Seoane, Geir Dahle, Thor A. Klevjer, Webjørn Melle, Roger Lille‐Langøy, François Besnier, Konstantinos Tsagarakis, Maxime Geoffroy, Naiara Rodríguez‐Ezpeleta, Eugenie Jacobsen, David Côté, Sofie Knutar, Laila Unneland, Espen Strand, Kevin Glover   +15 more
wiley   +1 more source

Unlocking Antarctic molecular time‐capsules – Recovering historical environmental DNA from museum‐preserved sponges

Molecular Ecology Resources, Volume 24, Issue 7, October 2024.
Abstract Marine sponges have recently emerged as efficient natural environmental DNA (eDNA) samplers. The ability of sponges to accumulate eDNA provides an exciting opportunity to reconstruct contemporary communities and ecosystems with high temporal and spatial precision. However, the use of historical eDNA, trapped within the vast number of specimens
Gert‐Jan Jeunen, Sadie Mills, Miles Lamare, Grant A. Duffy, Michael Knapp, Jo‐Ann L. Stanton, Stefano Mariani, Jackson Treece, Sara Ferreira, Benjamín Durán‐Vinet, Monika Zavodna, Neil J. Gemmell   +11 more
wiley   +1 more source

Dive descent rate as a buoyancy indicator to infer body condition of Weddell seals in the Antarctic

Marine Mammal Science, Volume 40, Issue 4, October 2024.
Abstract Changes in buoyancy of marine mammals can be used to infer environmental changes. In multiple seal species, how “fast” an animal sinks reveals body condition changes through shifts in buoyancy as the ratio between lean and lipid tissue changes.
Chuanji Yong, Robert Harcourt, Clive R. McMahon, Daniel P. Costa, Luis A. Huckstadt, Mark Hindell, Ian Jonsen   +6 more
wiley   +1 more source

Bottom‐up effects drive the dynamic of an Antarctic seabird predator–prey system

Ecology, Volume 105, Issue 8, August 2024.
Abstract Understanding how populations respond to variability in environmental conditions and interspecific interactions is one of the biggest challenges of population ecology, particularly in the context of global change. Although many studies have investigated population responses to climate change, very few have explicitly integrated interspecific ...
Lise Viollat, Maud Quéroué, Karine Delord, Olivier Gimenez, Christophe Barbraud   +4 more
wiley   +1 more source

Carbon dioxide emissions of Antarctic tourism [PDF]

, 2011
The increase of tourism to the Antarctic continent may entail not only local but also global environmental impacts. These latter impacts, which are mainly caused by transport, have been generally ignored.
Lamers, M.A.J., Farreny, R., Machiel Lamers, Benayas, J., Bas Amelung, Ramon Farreny, Boada, M., Jordi Oliver-Solà, Javier Benayas, Oliver-Solà, J., Amelung, B., Xavier Gabarrell, Gabarrell, X., Rieradevall, J., Martí Boada, Joan Rieradevall   +15 more
core   +1 more source

Going with the floe: Sea‐ice movement affects distance and destination during Adélie penguin winter movements

Ecology, Volume 105, Issue 2, February 2024.
Abstract Seasonal migration, driven by shifts in annual climate cycles and resources, is a key part of the life history and ecology of species across taxonomic groups. By influencing the amount of energy needed to move, external forces such as wind and ocean currents are often key drivers of migratory pathways exposing individuals to varying resources,
Dennis Jongsomjit, Amelie Lescroël, Annie E. Schmidt, Simeon Lisovski, David G. Ainley, Ellen Hines, Megan Elrod, Katie M. Dugger, Grant Ballard   +8 more
wiley   +1 more source

Population structure, connectivity and ecological dynamics of the Antarctic silverfish, Pleuragramma antarctica [PDF]

, 2018
The Antarctic silverfish (Pleuragramma antarctica) is a keystone species in the continental shelf waters around the Antarctic, performing an essential role of connecting higher and lower trophic levels in the Southern Ocean ecosystem.
Caccavo, Jilda Alicia
core