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

   have not been validated using locally sampled krill. This study reports on a three year study ... allometric equations for calculating total length from carapace length, were derived from South Georgia krill ... validating the use of discriminant functions to determine sex of krill based on carapace length and width and ... independently derives sex-specific regression models for krill collected in the South Shetlands. Allometric ...

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

2. Aggregation patterns of pelagic predators and their principal prey, Antarctic krill, near South Georgia

   is an explicit consideration of the separation in space between swarms of krill and aggregations of ... differences in foraging strategies. Published in Journal of Animal Ecology (1993) 62, 000-000 Author(s):  R.R ...

   Meeting Document : WG-CEMP-93/13 : Autor(es): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)

3. DEVELOPMENT OF EFFECTIVE MITIGATION TO REDUCE SEABIRD MORTALITY IN THE ICEFISH (CHAMPSOCEPHALUS GUNNARI) TRAWL FISHERY IN SUBAREA 48.3

    mitigate such mortality. As an interim measures a vessel specific 20‐bird mortality threshold was ...  Subarea 48.3 became a concern in the late 1990s. At this time there was little knowledge on how to ...  introduced for Subarea 48.3 in 2001. This provided a strong commercial incentive for industry to develop ...  and simply applied mitigation measure and is thought to be largely responsible for the continued ...

   Meeting Document : WG-IMAF-09/15 : Autor(es): B. Sullivan (BirdLife International), J. Clark (United Kingdom), K. Reid (Secretariat) and E. Reid (BirdLife International)

4. 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

   a function of the fraction of the biomass estimate which is set as the catch for a 20-year period ... preferable to a summer harvest. However, the imposition of an upper-bound of 1.5 yr-1 on the effective annual ... the Third and Fourth Meetings of Working Group on Krill. The most important of these extensions is ... integration over the ranges of uncertainty for a number of the model parameters. Results are provided for the ...

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

5. A re-analysis of the Kerguelen Shelf and Skiff Bank stocks of Champsocephalus gunnari

   -frequency data for the years 1981 to 1990. Cohort analysis yielded a Stock Biomass of 22 711 tonnes in 1988 ... for the Age 2 Kerguelen Shelf stock, an order of magnitude lower than that calculated from a biomass ... re-calculated from those used by the Working Group on Fish Stock Assessment in 1989 using length ...

   Meeting Document : WG-FSA-90/17 : Autor(es): G. Duhamel (France) and D.J. Agnew (Secretariat)

6. Foraging energetics of Antarctic fur seals in relation to changes in prey availability

   lactating female Antarctic fur seals, Arctocephalus gazella, foraging at sea was measured in two years using ... account for the observed between-year difference in at-sea FMR of C. ursinus while foraging-trip duration ... doubly labeled water at South Georgia Island. There was no difference between years in mass gain, water ... influx, mass-specific field metabolic rate (FMR), or absolute FMR. Mean at-sea FMR over both years was ...

   Meeting Document : SC-CAMLR-VIII/BG/13 : Autor(es): Delegation of United Kingdom

7. Spawning locations of mackerel icefish at South Georgia

   :  Historical information on the distribution of spawning and larval mackerel icefish (Champsocephalus gunnari ... inshore spawning at South Georgia during April within and close to the bays on the north side of the ... weak. Concentrations of larval icefish within Cumberland Bay are an order of magnitude higher than in ... following day, two on 20 March and 14 on 30 March. 011 5 April the catch was just three, and no further ... , spawning, South Georgia, CCAMLR INTRODUCTION Over the past 30 years there has been a fishery, large in ... coast of South Georgia. Sampling was undertaken using an RMT8 at stations up to 20 k m from the mouth ... on the shelf or close inshore along the north coast of South Georgia. Extensive year-round sampling ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Autor(es): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock

8. Quantifying habitat use in satellite-tracked pelagic seabirds: application of kernel estimation to albatross locations

   are very distinct. Based on location density categories accounting for 50% of locations, the foraging ... -rearing period of the breeding cycle at South Georgia. At this time the activity range of these two ... species covers an estimated 440 000 and 640 000 km 2, respectively, with very substantial overlap. In ... contrast, kernel estimation reveals that the main foraging areas of these two sympatric, congeneric species ...

   Meeting Document : WG-EMM-01/67 : Autor(es): A.G. Wood (United Kingdom), B. Naef-Daenzer (Switzerland), P.A. Prince and J.P. Croxall (United Kingdom)

9. Surface water circulation in krill fishing areas near the South Shetland Islands

   with a drogue attached at a depth of 30 m to assess flow patterns at the depth range where krill tended ... to be most abundant. The buoys were tracked using the ARGOS satellite positioning system. Based on ... Islands to the South Georgia and South Orkney Islands on a time scale of 110 to 120 and 85 days ... Orkneys for 20 days before drifting to South Georgia. Buoy 4, deployed in the shelf region, moved east ... currents which had properties of retention. In addition to positions of catches for the past 13 years ... at a depth of 30 m to assess flow patterns at the depth range where krill tended to be most abundant ... . The buoys were tracked using the ARGOS satellite positioning system. Based on buoy tracks, the ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Autor(es): Ichii, T. and M. Naganobu

10. Movement and growth of tagged toothfish around South Georgia and Shag Rocks (Subarea 48.3)

    and 2001, and have been at liberty from one to two years. Four fish were tagged and recaptured from ... been recovered at 42°S after about one year at liberty from some opportunistic tagging carried out on a ... Oxytetracycline which places a marker on the otolith indicating the date of injection and release. To date, 50 ... the same longline vessel in 2002 after up to two months at liberty. The fish tagged during the ...

    Meeting Document : WG-FSA-02/28 : Autor(es): T.R. Marlow, D.J. Agnew and I. Everson (United Kingdom)

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