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Commission pour la conservation de la faune et la flore marines de l'Antarctique

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  1. “Sailbuoy for krill” – a concept for autonomous commercial and scientific monitoring of the krill fishing in Antarctica

    – science partnership in collecting environment and krill distribution data independent of vessel ... survey krill hotspots (in areas that are fished and unfished) and feed science and industry with data in ... and will be tailored to support data for Feedback management and for a more environmentally efficient ... near real time. The system may also collect data from moorings through underwater communication using ...

    Meeting Document : WG-EMM-18/15 : Auteur(s): O.R. Godø, G. Pedersen, D. Peddie, G. Skaret, A. Lowther, F. Grebstad and A. Lohrmann

  2. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

    Paper Title:  Further computations of the consequences of setting the annual krill catch limit to ... a fixed fraction of the estimate of krill biomass from a survey Abstract / Description:  Butterworth ... relate potential krill yield to a pre-exploitation survey estimate of krill biomass. In this paper, the ... Meetings of the Working Group on Krill (WG-Krill). The most important of these extensions is integration ... indicadas en la Tercera y Cuarta reunion del Grupo de Trabajo del Kril (WG-Krill). La modificacion mas ... reproductora de kril descienda por debajo de proporciones determinadas de F P . Keywords: krill, catch ... potencial de kril con una estimacion de biomasa de kril derivada de una prospecci6n previa a la ... . 1983. The potential yield of fish stocks. FAO Fish. Biol. Tech. Pap., 242: 1-47. Butterworth, D.S ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Auteur(s): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew

  3. KRILL CATCHES INDICATE THE IMPACT OF THE EL-NIŇO – SOUTHERN OSCILLATION RELATED PROCESSES ON THE DISTRIBUTION OF KRILL BIOMASS BETWEEN SUBAREAS OF THE ATLANTIC SECTOR OF ANTARCTIC

    fishery management issues. Krill catch data in Subareas 48.1, 48.2 and 48.3 are compared to the AMLR ... Programme findings as described by Loeb et al. (2009). It is shown that krill fisheries statistics may be ... different climate oceanographic regimes and its influence on krill biomass into the discussion of krill ... inter-annual variation of krill biomass distribution between the major statistical subareas. The ...

    Meeting Document : WG-EMM-09/47 : Auteur(s): V. Spiridonov (Russia)

  4. Using the EPOC modelling framework to assess management procedures for Antarctic krill in Statistical Area 48: evaluating spatial differences in productivity of Antarctic krill

    and their affects on predator productivity and fisheries. It uses satellite data as proxies for the ... evaluate management procedures for the Antarctic krill fishery. The key issues to be resolved in the ... development of a harvest strategy are whether (i) spatial differences in the productivity of krill give rise ... to differential affects on predators in different locations, (ii) movement of krill between locations ...

    Meeting Document : WG-EMM-06/38 Rev. 1 : Auteur(s): A.J. Constable (Australia)

  5. Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during 1990/91 austral summer

    Abstract:  Acoustic and net sampling surveys for krill were conducted in the krill fishing area ... heterogeneities in abundance and maturity of krill were observed. The survey region was divided into four zones ... ; oceanic, slope frontal, neritic and nearshore zones. The mean density of krill was low in the oceanic zone ... krill into this zone. The total biomass over the survey region was estimated to be 1.59 ± 0.45 million t ...

    Meeting Document : WG-KRILL-92/26 : Auteur(s): T. Ichii, H. Ishii and M. Naganobu (Japan)

  6. Incorporation of a model of krill recruitment into the Butterworth et al. Stochastic krill dynamics model (SKDM)

    Abstract:  The method of simulating recruitment variability using observed ratios of 0 year krill ... to the total population is validated and tested. The method also links natural mortality to krill ... recruitment. Incorporation into the SKDM increases the variability of the krill population dynamics predicted ... (s):  D.J. Agnew (Secretariat) Title:  Incorporation of a model of krill recruitment into the ...

    Meeting Document : WG-Krill-94/05 : Auteur(s): D.J. Agnew (Secretariat)

  7. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

    Abstract:  The results of Butterworth et al. (1991) relating potential krill yield to a pre ... -exploitation survey estimate of krill biomass are extended as specified by the Third Meeting of Working Group ... on Krill. The most important of these extensions is integration over the ranges of uncertainty for a ... considered. Fishing in summer (near-coincident with the period of krill growth), or throughout the year ...

    Meeting Document : WG-KRILL-92/04 : Auteur(s): D.S. Butterworth, G.R. Gluckman and S. Chalis (South Africa)

  8. Towards a new method for age determination in Antarctic krill, and evidence that krill shrink under natural conditions

    Abstract:  Laboratory studies have shown that Antarctic krill Euphausia superba shrink if ... individuals may be shrinking in the field during winter. If krill shrink during the winter, conclusions ... laboratory population, it appears that when krill shrink, the crystalline cone number remains relatively ... body-length offers a method for detecting the effect of shrinking in natural populations of krill. On ...

    Meeting Document : WG-Krill-94/17 : Auteur(s): W. de la Mare (Australia)

  9. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

    Abstract:  The results of Butterworth et al. (1992) relating potential krill yield to a pre ... the Third and Fourth Meetings of Working Group on Krill. The most important of these extensions is ... of krill spawning biomass falling below specified fractions of Ksp. Author(s):  D.S. Butterworth, G.R ... setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey ...

    Meeting Document : WG-KRILL-93/42 : Auteur(s): D.S. Butterworth, G.R. Gluckman, R.B. Thomson and S. Chalis (South Africa)

  10. An argument against big incidental krill mortality stated in WG-KRILL-91/6

    Author(s):  E. Sakitani (Japan) Title:  An argument against big incidental krill mortality stated ... in WG-KRILL-91/6 Approval:  Approved ...

    Meeting Document : WG-KRILL-92/29 : Auteur(s): E. Sakitani (Japan)

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