Search results
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Growth of Antarctic krill Euphausia superba at South Georgia
Abstract: Antarctic krill Euphausia superba has a central role in the ecosystem of the Southern ... dynamics. The length of Antarctic krill in the diet of Antarctic fur seals Arctocephalus gazella at South ... may result in 2 year-old krill at South Georgia attaining the same size as 3 year old krill ... of krill has important implication for comparing the fate of individual cohorts over large scales ...
Meeting Document : WG-EMM-01/18 : Author(s): K. Reid (United Kingdom)
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Chiller killers – first steps towards identifying krill pathogens
Abstract: Antarctic Krill (Euphausia superba) is a ‘keystone species’ in the Southern Ocean ... and seals. Despite its ecological and economic importance, research into krill and other crustacean diseases ... the waters of Antarctic krill northern distribution limit have experienced significant warming. In a changing ... survey of krill from the Southern Ocean. In the present study and for the first time, krill were sampled ...
Meeting Document : WG-EMM-15/23 : Author(s): K. Bateman, R. Hicks, G. Tarling, M. Soeffker and G. Stentiford (United Kingdom)
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Dietary segregation of krill-eating South Georgia seabirds
period in 1986. For five species, Antarctic krill Euphausia superba was the main food (39-98% by mass ... ); grey-headed albatrosses took mainly the ommastrephids squid Martialia hyadesi (71 %) and only 16% krill ... . The size of the krill taken was similar between seabird species, although there were small but significant ... differences between penguins and the other species. Sex and reproductive status of krill. however ...
Meeting Document : WG-EMM-97/15 : Author(s): Prince, P.A., Croxall, J.P., Reid, K.
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Investigations of intensity of krill drift near South Georgia Island
Abstract: Calculation of drift’s speed (transport with current) of Antarctic krill along ... density of krill before the beginning of transport along the island’s shore was assumed about 0.1 ... g m-3. Total amount of krill immigration on island’s shelf (in above indicated limits) were examined for three ... main types of water circulation (the typisation according to Maslennikov, 1979). Duration of krill ...
Meeting Document : WG-CEMP-92/32 : Author(s): V.V. Popkov (Russian Federation)
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On commercial significance of krill aggregations
Abstract: We made an attempt to estimate krill commercial biomass density within the fleet ... operation areas and compare it with critical density values for marine animals feeding on krill. The results ... and 2002 (2380 hauls). In the course of the recent twenty years, krill has been fished in the areas ... with biomass density of at least 100 g/m2. This threshold value of krill commercial biomass considerably ...
Meeting Document : WG-EMM-03/31 : Author(s): S.M. Kasatkina (Russia)
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CPUEs and body length of Antarctic krill during 1992/93 season in the fishing grounds north of Livingston Island
Abstract: This paper summaries Japanese krill catch data during austral summer in 1992/93 season ... values at the height of summer (late February- late March).Krill with modal length of 41-45mm were ... (Japan) Title: CPUEs and body length of Antarctic krill during 1992/93 season in the fishing grounds ... This paper summaries Japanese krill catch data during austral summer in 1992/93 season. A main ...
Meeting Document : WG-Krill-94/28 : Author(s): S. Kawaguchi, T. Ichii and M. Naganobu (Japan)
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Note on estimating abundance from acoustic data on individual krill aggregations
Abstract: The theoretical basis underlying estimation of krill abundance using echo-integration ... . It is concluded that the echo-integration approach is superior for the estimation of regional krill abundance ... (South Africa) Title: Note on estimating abundance from acoustic data on individual krill aggregations ... The theoretical basis underlying estimation of krill abundance using echo-integration ...
Meeting Document : WG-KRILL-91/20 : Author(s): I. Hampton and D.G.M. Miller (South Africa)
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Relationship between distribution of Antarctic krill (Euphausia superba) and environmental index MTEM-200 in the Antarctic Ocean throughout the year
Abstract: Antarctic krill (Euphausia superba) is the key species of the Antarctic marine ... ecosystem and human fishing resources. Essentially, relationships between krill distribution ... the entire Antarctic Ocean. To clarify the relationship between krill distribution of krill and oceanographic ... environment, we have analysed two datasets combined. One is krill fishing records from 1973 to 2008 from ...
Meeting Document : WG-EMM-08/32 : Author(s): M. Naganobu, T. Kitamura and K. Hasunuma (Japan)
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Chinstrap penguins alter foraging and diving behaviour in response to krill size
to changes in prey availability. Chinstrap penguins are dependent predators of Antarctic krill in the Scotia ... Sea region. Both the sizes of krill found in penguin diets and acoustic estimates of krill biomass ... recorders (TDRs) over five seasons: 2002-06. When krill were smaller, chinstrap penguins often exhibited ... the daytime. The average annual size of krill was negatively correlated to the number of penguins foraging ...
Meeting Document : WG-EMM-07/11 : Author(s): A.K. Miller and W.Z. Trivelpiece (USA)
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Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru
Abstract: In order to calculate the target strength of Antarctic krill (Euphausia superba) using ... contrasts between the animal and the surrounding water are required. Sound-speed and mass-density of krill ... and 2004/2005. Samples of krill were caught by a RMT(1+8). Mass-density of krill was measured by density ... . The corresponding sound-speed contrast of krill with mean total lengths of 44.2mm was 1.011 in the South Shetland ...
Meeting Document : WG-EMM-08/56 Rev. 1 : Author(s): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)