Search results
-
Development in maturity stage composition and vertical distribution in an Antarctic krill (Euphausia superba) hotspot
Abstract: Antarctic krill (Euphausia superba) aggregate in various ways depending on a range ... and also for the krill fishing industry. Despite the importance of such krill hotspots, their dynamics over ... time with respect to spatial distribution and demographical composition of krill including spawning ... state is not well described or understood. In the present study, a krill fishing vessel during regular ...
Meeting Document : WG-EMM-14/15 : Author(s): B.A. Krafft, G. Skaret and T. Knutsen (Norway)
-
Risk maps for Antarctic krill under projected Southern Ocean acidification
Abstract: The embryonic development of Antarctic krill (Euphausia superba) is sensitive ... development even if the embryos are transferred to seawater with current levels of CO 2. Krill embryos appear ... 2 in the Southern Ocean are predicted by models to rise to above 1500 μatm in some parts of krill’s depth range ... to the east (the Haakon VII Sea) are the highest risk areas for krill embryos. The entire Southern Ocean ...
Meeting Document : WG-EMM-14/P06 : Author(s): S. Kawaguchi, A. Ishida, R. King, B. Raymond, N. Waller, A. Constable, S. Nicol, M. Wakit and A. Ishimatsu
-
Homogeneity of body length composition of Antarctic krill within the commercial haul
Abstract: The homogeneity of krill length composition in commercial trawl catches (hauls ... noticeable in areas where krill length compositions were bimodal. Author(s): T. Ichii (Japan) Title ... : Homogeneity of body length composition of Antarctic krill within the commercial haul Approval: Approved ... The homogeneity of krill length composition in commercial trawl catches (hauls) was investigated ...
Meeting Document : WG-KRILL-90/11 Rev1 : Author(s): T. Ichii (Japan)
-
Aggregation patterns of pelagic predators and their principal prey, Antarctic krill, near South Georgia
distribution of their principal prey, Antarctic krill Euphausia superba Dana. One novel aspect of our analysis ... is an explicit consideration of the separation in space between swarms of krill and aggregations of predators ... that feed upon krill. 2. Our data were collected in February 1986, during a systematic shipboard survey ... transects, and krill abundance was simultaneously estimated using a hull-mounted echosounder. 3. We ...
Meeting Document : WG-CEMP-93/13 : Author(s): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)
-
Results of a hydroacoustic survey of Antarctic krill populations in CCAMLR Division 58.4.1 carried out in January to April 1996
Abstract: In January-March 1996 a hydroacoustic survey for Antarctic krill was conducted ... in CCAMLR Division 58.4.1 for the purposes of estimating overall biomass (B0). The krill biomass in the area ... surveyed (873,000 km2) was estimated to be 6.67 million tonnes with a CV of 27%. Krill were more abundant ... in the west of the survey area 800-1200E than in the 120°-150°E region. The majority of the krill detected ...
Meeting Document : WG-EMM-96/28 : Author(s): Higginbottom, I., de la Mare, W., Pauly, T., Nicol, S.
-
ANTARCTIC PENINSULA DECADAL WINTER TEMPERATURE ANOMALIES AND ANTARCTIC KRILL VARIABILITY IN THE SOUTH ATLANTIC REGION: PRELIMINARY RESULTS
Abstract: The influence of the climate change on krill based Southern Ocean ecosystem is studied ... warming and ecosystem changes the data of Antarctic krill density (KRILLBASE data) and of surface air ... analysis of Antarctic krill density variations shows about 8-year variability as well. Correlation ... coefficient between krill density data and temperature anomalies is small (less 0.2) however is increased ...
Meeting Document : WG-EMM-11/41 : Author(s): G.P. Milinevsky, A.V. Grytsai and L.K. Pshenichnov (Ukraine)
-
Distribution and abundance of krill in the vicinity of Elephant Island in the 1992 austral summer
Abstract: Krill distribution and abundance were estimated from four acoustic surveys, conducted ... a 60 by 35 n.mi. area immediately north of Elephant Island. During the first survey, krill were ... densities of krill were over the shelf extending to the northwest from Elephant Island and including ... the Seal Island archipelago; high densities of krill also extended off the shelf from the northeast end ...
Meeting Document : WG-CEMP-92/15 : Author(s): R.P. Hewitt and D.A. Demer (USA)
-
Method for collecting of data on traumatic death of krill passed through the trawl meshes
Abstract: Fishing for krill Euphasia superba Dana has been conducting using midwater trawls ... of different constructions including beam-trawl for several last decades. Not all krill in harvesting zone ... of krill individuals some part of them could pass through cover of net bag and escape of catch. In contact ... is applicable for rating of krill traumatic damage, received by it during trawling from cover of net bag, only ...
Meeting Document : WG-EMM-12/43 : Author(s): V.V. Akishin, I.G. Istomin, V.A. Tatarnikov, A.F. Petrov and R.O. Lebedev (Russia)
-
Comparison between the CCAMLR-2000 and KY 1988 surveys on environmental variability of krill in the Scotia Sea, Antarctica
Abstract: We assessed the environmental variability of Antarctic krill (Euphausia superba ... and krill distribution. The sea ice cover in 1987/88 extended northward widely during the last winter season ... in 2000 reduced southward. Geographical distribution of krill, which approximates the area ... of krill in 2000 reduced southward with low density. To generally understand the above relationships ...
Meeting Document : WG-EMM-02/43 : Author(s): M. Naganobu (Japan), M. Brandon (United Kingdom), K. Ito, K. Segawa (Japan) and V. Siegel (Germany)
-
Variability of krill biomass estimates in repeated mesoscale surveys in relation to CCAMLR-2000 Survey
the krill biomass status, is it high, medium or low at the present time. The comparative analysis of krill ... -2000. Krill biomass index calculated for the whole area of Soviet surveys doesn't reveal any ... density reflect biomass variability, it may be suggested that value of the total krill biomass in the area ... in layers sampled during CCAMLR-2000 and Soviet surveys, krill biomass derived from data collected in 80 ...
Meeting Document : WG-EMM-01/28 : Author(s): V.A. Sushin, F.F. Litvinov (Russia) and V. Siegel (Germany)