Résultats de la recherche

1. Effects of orientation on acoustic scattering from Antarctic krill at 120 kHz

   collected per animal. Orientation data were recorded on video. The acoustic data were analyzed and target ... animal orientation. Use of these scattering patterns with orientation data from shipboard studies of E ... the need for better in situ behavioral data to properly interpret acoustic survey results. A generic E ... Abstract:  Backscattering measurements of 14 live individual Antarctic krill (Euphausia superb a ...

   Meeting Document : WG-EMM-99/42 : Auteur(s): D.E. McGehee (USA), R.L. O’Driscoll (New Zealand) and L.V. Martin Traykovski (USA)

2. Methodological aspects of the International Synoptic Krill Survey in Area 48, 2019

   Secretariat Workflow Status:  Content Approved Document Release Consent:  No Delegation responsibility for ... 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 ...

   Meeting Document : SG-ASAM-2019/10 : Auteur(s): G. Macaulay, G. Skaret, T. Knutsen and B. Krafft

3. South Orkney Island 2016 Antarctic krill and ecosystem monitoring

   , krill demography and other macro zooplankton from trawl station work, krill predator sightings data as ... the South Orkney Islands including the preliminary results from continuously recorded acoustic data ... well as krill-experimental work carried out on onboard. Author(s):  B.A. Krafft, G. Skaret, L.A. Krag ... , T. Rustand and R. Pedersen Title:  South Orkney Island 2016 Antarctic krill and ecosystem monitoring ...

   Meeting Document : WG-EMM-16/P03 : Auteur(s): B.A. Krafft, G. Skaret, L.A. Krag, T. Rustand and R. Pedersen

4. Fishing intensity of Russian fleet krill fishery in Subarea 48.2 and 48.3

   -by-haul data using a model of probabilistic-statistical theory of fishery systems developed in the ... aggregated in the fishing grounds was assessed basing on 22800 haul data. The analysis of Soviet fleet ... Abstract:  The purpose of this paper was estimating commercial fleet impact on krill population in ... AtlantNIRO. Intensity of commercial fleet impact on krill population, on biomass and density of krill ...

   Meeting Document : WG-EMM-02/62 : Auteur(s): S.M. Kasatkina and V.F. Ivanova (Russia)

5. On commercial significance of krill aggregations

   used. We also analyzed commercial statistics data, including haul by haul data from Soviet trawlers ... 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 ...

   Meeting Document : WG-EMM-03/31 : Auteur(s): S.M. Kasatkina (Russia)

6. A procedure for krill density estimation

   document for the 2016 SG-ASAM meeting. Author(s):  M.J. Cox, S. Fielding and A. Constable Title:  A ... Abstract:  This paper is intended to provide a generalised example of a procedure for krill ... paper is not the CCAMLR krill density estimation procedure, but has been written as a discussion ... procedure for krill density estimation Microsoft Word File:  asam-16-01.docx Approval:  Approved Secretariat ...

   Meeting Document : SG-ASAM-16/01 : Auteur(s): M.J. Cox, S. Fielding and A. Constable

7. A comparison between the estimated density of krill from an acoustic survey with that obtained by scientific nets on the same survey

   between acoustic and net krill density estimates. This variation was reduced by subsampling the data set ... found between the two data sets. Several orders of magnitudes were seen in the range of variation ... Abstract:  This work presents the initial comparative analysis of acoustic and net haul krill ... part of a hydroacoustic biomass survey for Antarctic krill in CCAMLR Division 58.4.1. The acoustic ...

   Meeting Document : WG-EMM-97/43 : Auteur(s): Pauly, T., Higginbottom, I., Hosie, G., de la Mare, W.K., Nicol, S.

8. Growth and shrinkage in Antarctic krill Euphausia superba is sex-dependent

   sources of winter krill population data is from commercial vessels. We examined length-frequency data of ... shrink in the natural environment is lacking because winter data are difficult to obtain. One of the few ... Abstract:  The ability of Antarctic krill Euphausia superba Dana to withstand the overwintering ... period is critical to their success. Laboratory evidence suggests that krill may shrink in body length ...

   Meeting Document : WG-EMM-16/P04 : Auteur(s): G. Tarling, S. Hill, H. Peat, S. Fielding, C. Reiss and A. Atkinson

9. Net escapement of Antarctic krill in trawls

   Abstract:  This document describes the aims and methodology of a three year project (commenced in ... 2012) entitled Net Escapement of Antarctic krill in Trawls (NEAT). The study will include a morphology ... based mathematical modeling (FISHSELECT) of different sex and maturity groups of Antarctic krill ... selective properties for krill in different trawls. Author(s):  B.A. Krafft (Norway), L.A. Krag, B. Herrmann ...

   Meeting Document : WG-EMM-12/24 : Auteur(s): B.A. Krafft (Norway), L.A. Krag, B. Herrmann (Denmark), A. Engås, S. Nordrum and S. Iversen (Norway)

10. Development in maturity stage composition and vertical distribution in an Antarctic krill (Euphausia superba) hotspot

    regular operation was used as a platform for frequent collection of biological data to investigate krill ... quantitative data on krill flux and retention potential, especially if the fishing activity expands in future ... demographic composition and the continuous acquisition of acoustic data for studying their distribution within ... Abstract:  Antarctic krill (Euphausia superba) aggregate in various ways depending on a range of ...

    Meeting Document : WG-EMM-14/15 : Auteur(s): B.A. Krafft, G. Skaret and T. Knutsen (Norway)

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