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  1. The importance of sea ice association of Antarctic krill for transport and retention in the South Orkneys region: a modelling study

    of Antarctic krill in CCAMLR Area 48. The local krill populations support krill-dependent higher predators ... and krill fisheries, and the regional oceanographic circulation provides connections between the Antarctic ... for Antarctic krill, and how krill use the sea ice habitat can impact their distribution. To better determine ... the local ecosystem dynamics in this key region requires greater understanding of the extent to which krill ...

    Meeting Document : WG-EMM-2019/21 : Author(s): S.E. Thorpe, E.F. Young, E.J. Murphy and A.H.H. Renner

  2. Estimation of the biomass of krill in Prydz Bay during January/February 1991 and February/March 1992 using echo integration

    Abstract:  Hydroacoustic surveys of the abundance of krill (Euphausia superba) in the Prydz Bay ... association of krill with the shelf break in the western part of the survey area but also found that the shelf ... break was in general not a region of relatively high krill abundance. The mean surface density of krill ... between 1981 and 1985 (Higginbottom et al. 1988). The biomass of krill in 3.5 milion km2 of the Prydz Bay ...

    Meeting Document : WG-KRILL-92/23 : Author(s): I. Higginbottom and T. Pauly (Australia)

  3. Midwater trawl catchability regarding quantitative estimation of krill biomass using the method of trawling surveys on abundance

    and distributional pattern end trawl parameters. Data on trawl catchability distribution parameters and krill ... was taken as an example, proved the latters not to be suitable for krill biomass estimation using method ... of trawling survey on krill abundance should be worked out. Optimum construction of midwater trawl can ... include studies on estimation of krill total exemption. Author(s):  S.M. Kasatkina (USSR) Title:  Midwater ...

    Meeting Document : WG-KRILL-91/32 : Author(s): S.M. Kasatkina (USSR)

  4. Krill length frequency distribution in Subarea 48.3 in January–April 1988 in relation to sources of its origin

    Abstract:  Krill length frequency distribution through subarea 48.3 in 1988 January-February ... is considered in the frame of hypothesis of krill resources forming from two sources: Antarctic Circumpolar ... Current and Weddell Scotia Sea water flow. It is shown, that small krill with the mode of about 33 mm ... at the distance of about 30-60 miles, beyond boundary zone occurs larger krill with the mode of about 49 mm. Krill ...

    Meeting Document : WG-EMM-03/40 : Author(s): F.F. Litvinov, V.N. Shnar, A.V. Zimin and V.V. Lidvanov (Russia)

  5. A comparison of Antarctic krill (Euphausia superba Dana) caught by nets and taken by macaroni penguins (Eudyptes chrysolophus Brandt): evidence for selection?

    , we examined the potential selection of different length and maturity stages of Antarctic krill ... the probability of obtaining length-frequency distributions of krill different from that obtained from the net ... samples. The krill taken by the macaroni penguins differed significantly from those caught in the nets ... . Small krill (28 to 38 mm) were absent from the stomach samples, whereas large krill (58 to 62 mm) were ...

    Meeting Document : WG-EMM-96/08 : Author(s): Croxall, J.P., Hill, H.J., Trathan, P.N., Watkins, J.L.

  6. Using carapace measurements to determine the sex of Antarctic krill (Euphausia superba)

    Abstract:  Krill carapaces measurements have been used to reconstruct krill length frequencies ... allometric equations for calculating total length from carapace length, were derived from South Georgia krill ... have not been validated using locally sampled krill. This study reports on a three year study ... validating the use of discriminant functions to determine sex of krill based on carapace length and width ...

    Meeting Document : WG-EMM-05/26 : Author(s): J.D. Lipsky, M.E. Goebel, C.S. Reiss and V. Loeb (USA)

  7. MULTIPLE TIME SCALES OF VARIABILITY IN THE KRILL POPULATION AT SOUTH GEORGIA

    Abstract:  The South Georgia region supports a high biomass of krill that is the subject to high ... inter-annual variability. The lack of a self-sustaining krill population at South Georgia means ... ecosystem-based management of any krill fishery in the region. Krill acoustic density data from surveys ... conducted in the early, middle and late period of the summers of 2001 to 2005, together with krill ...

    Meeting Document : WG-EMM-08/48 : Author(s): K. Reid, J. Watkins, E. Murphy, P. Trathan, S. Fielding and P. Enderlein (United Kingdom)

  8. Krill population dynamics at South Georgia: implications for ecosystem-based fisheries management

    Abstract:  The South Georgia region supports a large biomass of krill that is subject to high ... interannual variability. The apparent lack of a locally self-maintaining krill population at South Georgia ... to successful ecosystem-based management of krill fishery in the region. Krill acoustic-density data from ... surveys conducted in the early, middle and late period of the summers of 2001 to 2005, together with krill ...

    Meeting Document : WG-EMM-10/P08 : Author(s): K. Reid, J.L. Watkins, E.J. Murphy, P.N. Trathan, S. Fielding and P. Enderlein

  9. Possible approaches to the evaluation of the Antarctic krill mortality

    on the base of summaryed data on Krill age groups singled out using method of Harding.Parameters obtained were ... used to calculate total Krill mortality using different methods applyed earlier only to the fish ... . The most real values varied from 0.75 to 1,17. No fishery impact on various parameters of the krill ... approaches to the evaluation of the Antarctic krill mortality Approval:  Approved ...

    Meeting Document : WG-KRILL-92/08 : Author(s): L.G. Maklygin and V.I. Latogursky (Russia)

  10. Estimating krill recruitment and its variabiliity

    Abstract:  A maximum likelihood method is developed for the decomposition of krill density ... of the Southern Ocean give a mean recruitment rate for one year old krill of 0.339 with a standard deviation ... of 0.100. The corresponding results for two year old krill from 9 surveys are 0.552 and standard deviation ... (Australia) Title:  Estimating krill recruitment and its variabiliity Approval:  Approved ...

    Meeting Document : WG-KRILL-93/12 : Author(s): W. de la Mare (Australia)

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