10465 to 10476 of 14084 results
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Environmental response of upper trophic-level predators reveals a system change in an Antarctic marine ecosystem
Read more of: Environmental response of upper trophic-level predators reveals a system change in an Antarctic marine ecosystemLong-term changes in the physical environment in the Antarctic Peninsula region have significant potential for affecting populations of Antarctic krill (Euphausia superba), a keystone food web species. In order to […]
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The use of predator-derived length-frequency distributions to calculate krill target strength
Read more of: The use of predator-derived length-frequency distributions to calculate krill target strengthThe relationship between krill abundance and predator performance is fundamental to an ecosystem-based approach to resource management. We propose a method using krill sampled from the diet of predators to […]
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Growth of Antarctic krill Euphausia superba at South Georgia
Read more of: Growth of Antarctic krill Euphausia superba at South GeorgiaAntarctic krill Euphausia superba has a central role in the ecosystem of the Southern Ocean and knowledge of its growth rate is central to determining the factors influencing population dynamics. […]
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Regulation by low temperature of phytoplankton growth and nutrient uptake in the Southern Ocean
Read more of: Regulation by low temperature of phytoplankton growth and nutrient uptake in the Southern OceanDuring oceanographic cruises in 1996 and 1998, phytoplankton from 15 stations in the southwest Atlantic sector of the Southern Ocean were incubated at ambient temperature and 2 elevated temperatures (ambient […]
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Ice stream shear margins
Read more of: Ice stream shear marginsThis chapter contains sections titled: Introduction Characteristics of Ice Stream Margins Dynamic Analysis Migration of Shear Margins Synthesis
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Ice in the earth system: the view from above
Read more of: Ice in the earth system: the view from aboveThe cryosphere is a key component of the Earth system, with important linkages and feedbacks affecting the radiative balance of the planet, the circulation of the oceans and atmosphere, global […]
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Population trends, breeding success and diet composition of gentoo Pygoscelis papua, magellanic Spheniscus magellanicus and rockhopper Eudyptes chrysocome penguins in the Falkland Islands
Read more of: Population trends, breeding success and diet composition of gentoo Pygoscelis papua, magellanic Spheniscus magellanicus and rockhopper Eudyptes chrysocome penguins in the Falkland IslandsData on population size, breeding success and diet composition of gentoo (Pygoscelis papua), magellanic (Spheniscus magellanicus) and rockhopper (Eudyptes chrysocome) penguins, collected as part of the Falkland Island Seabird Monitoring […]
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Littoral Acari of Marion Island: ecology and extreme wave action
Read more of: Littoral Acari of Marion Island: ecology and extreme wave actionFourteen species of littoral Acari (Arachnida) were collected from the shores of sub-Antarctic Marion Island, of which Parasitiphis brunneus (Kramer) (Ologamasidae), Rhombognathus apsteini Lohmann and R. gressitti Newell (Halacaridae) are […]
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Bathymetry and acoustic facies beneath the former Larsen-a and Prince Gustav ice shelves, NW Weddell Sea
Read more of: Bathymetry and acoustic facies beneath the former Larsen-a and Prince Gustav ice shelves, NW Weddell SeaWe present preliminary results of the first detailed surveys of the former Larsen-A Ice Shelf, Larsen Inlet aiid southern Prince Gustav Channel. where disintegration of small ice shelvcs in the […]
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An examination of inter-hemispheric conjugacy in a subauroral polarization stream
Read more of: An examination of inter-hemispheric conjugacy in a subauroral polarization streamDuring geomagnetically disturbed conditions the midlatitude ionosphere is subject to intense poleward directed electric fields in the dusk-midnight sector. These electric fields lead to the generation of a latitudinally narrow […]