Résultats de la recherche
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Methodological aspects of the International Synoptic Krill Survey in Area 48, 2019
Abstract: The effect of differences in the methodology used for the CCAMLR 2000 krill acoustic ... effect of krill discrimination method. Surveying during the day only produced a 6% increase in the ... standing stock estimate and the trawl selectivity between vessels had minimal effect on the krill length ... distributions. The choice of krill discrimination method had a marked effect on the per-stratum biomass ...
Meeting Document : SG-ASAM-2019/10 : Auteur(s): G. Macaulay, G. Skaret, T. Knutsen and B. Krafft
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Interannual and seasonal variability of salp by-catch from Japanese krill fishery around the South Shetland Islands
Abstract: Data on salp by-catch and green krill were analyzed based on Logbook data of Japanese ... krill trawlers. Inter-annual and seasonal variability of the timing, duration and strength of salp bloom ... were indicated. Salp by-catch and occurrence of green krill seemed to show reverse correlation ... , implying the competition for phytoplankton between krill and salps. Author(s): Naganobu, M., Ichii, T ...
Meeting Document : WG-EMM-97/37 : Auteur(s): Naganobu, M., Ichii, T., Kawaguchi, S.
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Variability and predictability of Antarctic krill swarm structure
-identification algorithm and then filtering out all non-krill targets. The area, length, height, depth, packing ... describing both the environment and the internal-state of krill (namely maturity, body length, body condition ... significant explanatory power (P<0.05): surface fluorescence, PAR, krill maturity and krill body length ... , when surface fluorescence was low, and when the krill were small and immature. A strong pattern of diel ...
Meeting Document : WG-EMM-10/P10 : Auteur(s): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper
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Some characteristics of krill transport in the Scotia Sea based on the Russian survey data
Abstract: In this work the characteristics of krill transport across the SSMUs determined on the ... be accompanied with krill biomass transport across the boundaries of the SSMUs. Our estimates of ... krill flux out SSMU during fishing season appeared incomparable neither with the historical annual catch ... years. It is shown that total krill biomass of 3.392 mln.t. transported by water mass out three SSMUs is ...
Meeting Document : WG-EMM-05/41 : Auteur(s): S.M. Kasatkina, V.N. Shnar and O.V. Berezhinsky (Russia)
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Krill fishery information
Abstract: The paper presents a compilation of information and work pertaining to the krill ... between the krill fishery and krill predators; • further development of the plan for the krill fishery in ... the questionnaire on fishing strategy. Author(s): Secretariat Title: Krill fishery information ...
Meeting Document : WG-EMM-02/6 : Auteur(s): Secretariat
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Krill distribution related to water structure and dynamics on the South Georgia shelf in January 2000 (AtlantNIRO-BAS Core Programme 1999/2000)
Abstract: Research on water structure and dynamics, krill biomass assessment, biology and ... each box. Krill were distributed rather evenly throughout both boxes, but no dense concentrations were ... apparent. In the western box krill density was nearly 0.2 glm3 and in the eastern box was 1.8- 4.7 glm3 ... • Juvenile krill of 30-36 mm length were observed in the shelf zone and larger specimens, including spawning ...
Meeting Document : WG-EMM-00/51 : Auteur(s): V.A. Sushin (Russia), P.P. Chernyshkov (Russia), F.F. Litvinov (Russia), J.L. Watkins (United Kingdom) and A.S. Brierley (United Kingdom)
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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 ... using strip transects, and krill abundance was simultaneously estimated using a hull-mounted echosounder ...
Meeting Document : WG-CEMP-93/13 : Auteur(s): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)
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Preliminary results of the experiments on the krill transport study in the South Orkney area (April 1992)
area. The krill biomass was estimated within the square at the start and the end of works. It amounted ... assessment of krill density and oceanological stations were carried out along the square perimeter. Four ... average estimates of krill density were obtained by 15-miles intercepts of the perimeter, along with mean ... water flow and geostrophic currents. The balance of krill input and output for the square was calculated ...
Meeting Document : WG-CEMP-92/34 : Auteur(s): L.G. Maklygin, V.N. Shnar, A.P. Malyshko (Russian Federation) and A.G. Shepelev (Ukraine)
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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 of ... ecosystems 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 ...
Meeting Document : WG-EMM-14/15 : Auteur(s): B.A. Krafft, G. Skaret and T. Knutsen (Norway)
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Density and biomass of Antarctic krill around South Shetland Islands using by 2-dB difference method
Abstract: The dB-difference and characteristics of krill aggregation inhabiting Subarea 48.1 ... , were estimated to distinguish Antarctic krill, using acoustics. From April 13 to 24, 2016, acoustic ... Antarctic krill (4.9 to 12.0 dB) and fish (-4.0 to-0.2 dB). The distributions and mean Sv of krill ... the west of the South Shetland Islands. The mean length/height ratio of krill aggregations in the west ...
Meeting Document : SG-ASAM-17/04 : Auteur(s): S.-G. Choi, K. Lee and D. An