8881 to 8892 of 14026 results
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Interannual variability in krill abundance at South Georgia
Read more of: Interannual variability in krill abundance at South GeorgiaInterannual variability within the pelagic marine environment around South Georgia is a well-recognised phenomenon. A key aspect of this variability is interannual fluctuation in the abundance of Antarctic krill Euphausia […]
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Variation in foraging effort by lactating Antarctic fur seals: response to simulated increased foraging costs
Read more of: Variation in foraging effort by lactating Antarctic fur seals: response to simulated increased foraging costsSeasonally breeding predators, which are limited in the time available for provisioning young at a central location, and by the fasting abilities of the young, are likely to maximize energy […]
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The behavioural and physiological ecology of diving
Read more of: The behavioural and physiological ecology of divingRecent measurements of remarkable dive performances in oceanic seabirds and marine mammals suggest the use of a range of physiological and behavioural adaptations for the parsimonious use of oxygen. Access […]
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Effect of body size and ration on specific dynamic action in the Antarctic plunderfish, Harpagifer antarcticus Nybelin 1947
Read more of: Effect of body size and ration on specific dynamic action in the Antarctic plunderfish, Harpagifer antarcticus Nybelin 1947The feeding energetics of the Antarctic spiny plunderfish (Harpagifer antarcticus) were examined with respect to the effect of both ration size and animal size. Fish of different sizes were fed […]
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Eddy-induced variability in Southern Ocean abyssal mixing on climatic timescales
Read more of: Eddy-induced variability in Southern Ocean abyssal mixing on climatic timescalesThe Southern Ocean plays a pivotal role in the global ocean circulation and climate1, 2, 3. There, the deep water masses of the world ocean upwell to the surface and […]
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Organic and mineral imprints in fossil photosynthetic mats of an East Antarctic lake
Read more of: Organic and mineral imprints in fossil photosynthetic mats of an East Antarctic lakeLacustrine microbial mats in Antarctic ice-free oases are considered modern analogues of early microbial ecosystems as their primary production is generally dominated by cyanobacteria, the heterotrophic food chain typically truncated […]
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First evidence of widespread active methane seepage in the Southern Ocean, off the sub-Antarctic island of South Georgia
Read more of: First evidence of widespread active methane seepage in the Southern Ocean, off the sub-Antarctic island of South GeorgiaAn extensive submarine cold-seep area was discovered on the northern shelf of South Georgia during R/V Polarstern cruise ANT-XXIX/4 in spring 2013. Hydroacoustic surveys documented the presence of 133 gas […]
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Adjustment of pre-moult foraging strategies in Macaroni Penguins Eudyptes chrysolophus according to locality, sex and breeding status
Read more of: Adjustment of pre-moult foraging strategies in Macaroni Penguins Eudyptes chrysolophus according to locality, sex and breeding statusThe annual moult creates the highest physiological stress during a penguin’s breeding-cycle and is preceded by a period of hyperphagia at sea. Although crucial to individual survival, foraging strategies before […]
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The origin of Jupiter’s outer radiation belt
Read more of: The origin of Jupiter’s outer radiation beltThe intense inner radiation belt at Jupiter (>50 MeV at 1.5 RJ) is generally accepted to be created by radial diffusion of electrons from further away from the planet. However, […]