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Showing 1 to 13 of 13 for “"Euphausia superba"”.
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The spatial distribution of Antarctic krill (Euphausia superba Dana) aggregations
In nature, many biota exhibit recognisable spatial groupings, commonly termed "clumps" or "patches" (Hutchinson 1953; Diggle 1983; Wilson 1978). Attempts to devise measures of such aggregation are usually based on statistically determining the frequency distributions of selected organism parameters …
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Modeling Studies of Antarctic Krill (<i>Euphausia superba</i>) Survival During Transport Across the Scotia Sea and Environs
<p>The Antarctic krill (<em>Euphausia superba</em>) populations at South Georgia, which is in the eastern Scotia Sea, are hypothesized to be sustained by import of individuals from upstream regions, such as the western Antarctic Peninsula. To test this hypothesis a modeling framework consisting of …
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Seasonal and Mesoscale Variability in the Distribution of Antarctic Krill, <i>Euphausia superba</i>, West of the Antarctic Peninsula
… distribution and abundance of Antarctic krill, Euphausia superba, within continental shelf waters west of the Antarctic Peninsula and to investigate possible relationships between variability in krill distributions and variability in selected environmental parameters. Acoustic measurements of …
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Spatiotemporal variability in Antarctic krill (Euphausia superba) around South Georgia from Antarctic fur seal (Arctocephalus gazella) diets at two long term monitoring sites
… importance, there is much about Antarctic krill (Euphausia superba Dana, 1852) that is still poorly understood. This is especially true for its recruitment into South Georgia’s waters, which is highly variable and difficult to predict. Krill fluctuations exert bottom-up pressures on the entire …
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Distributions of <i>Euphausia Superba</i>, <i>Euphausia Crystallorophias</i>, and <i>Pleuragramma Antarcticum</i> with Correlations to Environmental Variables in the Western Ross Sea, Antarctica
<p>Antarctic krill (<em>Euphausia superb</em>a), crystal krill (<em>Euphausia crystallorophias</em>), and Antarctic silverfish (<em>Pleuragramma antarcticum</em>) are key mid-trophic level species in the Ross Sea food web that provide connectivity between primary production and the upper trophic …
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Variability of zooplankton and sea surface temperature in the Southern Ocean
… patterns in the distribution of Antarctic krill (Euphausia superba) resulting from social behavior. Turbulence of the flow is found to provide favorable conditions for the evolution social behavior in an idealized biological-physical model. Second, I analyze observations of sea surface temperature …
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Distribution, patchiness, and behavior of Antarctic zooplankton, assessed using multi-frequency acoustic techniques
… with particular emphasis on the Antarctic krill, Euphausia superba. This was accomplished by the application of acoustic, video, and environmental sensors during surveys of the region in and around Marguerite Bay, west of the Antarctic Peninsula, in the falls and winters of 2001 and 2002. An …
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Fine-Scale Foraging Behavior of Humpback Whales Megaptera novaeangliae in the Near-Shore Waters of the Western Antarctic Peninsula
… dusk to dawn when their prey (Antarctic krill, Euphausia superba) were most vulnerable and less costly to acquire (i.e., near the surface). When forced to dive to greater depths, they adjusted their behaviors (e.g., descent and ascent rates) so that they could maximize their foraging durations …
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Distribution, patchiness, and behavior of Antarctic zooplankton, assessed using multi-frequency acoustic techniques
… with particular emphasis on the Antarctic krill, Euphausia superba. This was accomplished by the application of acoustic, video, and environmental sensors during surveys of the region in and around Marguerite Bay, west of the Antarctic Peninsula, in the falls and winters of 2001 and 2002. An …
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The Role of n-3 Fatty Acids in Cardiometabolic Risk
… sources. Krill oil, obtained from the crustacean Euphausia superba, contains n-3 fatty acids as phospholipids and triglycerides, astaxanthin and related carotenoid pigments, and has been proposed as a more effective alternative than triglyceride oils. Some foods rich in n-3-LCPUFA, including …
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Herstellung von Chitosan und einige Anwendungen
… hoher mittlerer Mv, während Krill-Chitin (Euphausia superba) ein gutes Ausgangsmaterial zur Herstellung von Chitosan mit hohem DD und niedrigem Mv ist. Chitosan, das aus Insekten (Calliphora erythrocephala), unter milden Bedingungen (Temperatur: 100°C, NaOH-Konzentration: 40 %, Zeit: 1-2h ) …
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A potential mechanism sustaining the biological hotspot around Palmer Deep Canyon
… blooms would support Antarctic krill (Euphausia superba) in the region who feed on the phytoplankton blooms occurring over the canyon, providing a reliable food source for marine predator populations. ☐ Gliders deployed in the austral summer of 2015, however, illustrate that upwelling …
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Plasticity and partitioning of foraging behaviour among and within sympatric Pygocelis penguin populations
… prey almost exclusively on Antarctic krill (Euphausia superba), along with gentoo penguins (dietary generalists) showed plasticity in foraging trip and dive behaviours between sites and breeding stages. During brood and crèche, chinstrap penguins contracted their foraging ranges and dived …