Résultats de la recherche

1. Age-structured production model for toothfish at South Georgia

   through the introduction of a new annual selectivity function, modelled as a unimodal, algebraically ... decaying function of age, with three easily interpretable parameters. When only a single selectivity curve ... toothfish populations by fitting to the available catch length frequency data and CPUE data. Author(s):  A ...

   Meeting Document : WG-FSA-SAM-05/18 : Auteur(s): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)

2. Beach debris survey, Main Bay, Bird Island, South Georgia, 2002/03

   Island, South Georgia, a total of 183 items was collected. This represents a 5.0% decrease on the total ... (3.6 kg) was a decrease of 1 kg since last year. There was a decrease in the proportion of nylon ...

   Meeting Document : SC-CAMLR-XXIII/BG/13 : Auteur(s): Delegation of the United Kingdom

3. Report of the Steering Committee for the WG-EMM Workshop on Plausible Ecosystem Models for Testing Approaches to Krill Management

   advance a program of work to develop and implement operating models to investigate the robustness of ... in the development of models at the workshop, (ii) a review of relevant literature and information on ... a catalogue of available software and other simulation environments for ecosystem modelling, (iv ... work are outlined. Also provided in this report is a draft agenda for the workshop. Title:  Report of ...

   Meeting Document : WG-EMM-04/25

4. Review of CCAMLR activities on monitoring marine debris in the Convention Area

   , reached a peak in the period 1994–1996 at Bird Island and Signy Island has declined thereafter. The level ... ) entanglement at Bird Island reached a peak in 1993 and showed a decline until 2000 since when there has been a ...

   Meeting Document : SC-CAMLR-XXII/BG/25 : Auteur(s): Secretariat

5. Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of populations in subarea of South Georgia

   represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... class. These year classes appeared against a background of the intensive icefish fishery, and krill ... important factors now. A comparative analysis of icefish growth in subarea 48.3 based on data collected in ... different periods of fishery revealed a substantial interannual variability. The comparison of the growth ...

   Meeting Document : WG-EMM-03/60 : Auteur(s): K.V. Shust and E.N. Kuznetsova (Russia)

6. Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of population in subarea of the South Georgia

   represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... class. These year classes appeared against a background of the intensive icefish fishery, and krill ... important factors now. A comparative analysis of icefish growth in subarea 48.3 based on data collected in ... different periods of fishery revealed a substantial interannual variability. The comparison of the growth ...

   Meeting Document : WG-FSA-SAM 03/7 : Auteur(s): K.V. Shust and E.N. Kuznetsova (Russia)

7. Antarctic fur seal population dynamics update and assessment of census error at SSSI No. 32, Livingston Island, South Shetlands, Antarctica (2000/2001)

   up to date have been single counts and do not allow the calculation of confidence limits, a protocol ... error and pup numbers show a linear trend, however, some outliers (outside the 95%CI) could be ... censuses in a considerable way. These factors should all be assessed and taken into account when ... error, thus supporting the hypothesis that the A. gazella population at SSSI Nº32 is reaching stability ...

   Meeting Document : WG-EMM-01/49 : Auteur(s): R. Hucke-Gaete (Chile)

8. Relationships between the distribution of whales and Antarctic krill Euphausia superba at South Georgia

   examined by comparing sightings and underway acoustic data collected as part of a multidisciplinary ... research cruise during January/February 1998. A total of 222 cetaceans of 10 species was recorded with ... and krill was examined at a number of spatial scales. There was a positive relationship between whale ...

   Meeting Document : WG-EMM-99/30 : Auteur(s): K. Reid, A.S. Brierley (United Kingdom) and G.A. Nevitt (USA)

9. Notes on the availability of three important finfish species in offshore waters of the lower South Shetland Islands (Subarea 48.1)

   collected from a single year, the sample size and regression range available for length-weight relationships ... can be increased. However, the value of these data as a combined singular data set for one year of ... sampling is limited. A future offshore survey coupled with inshore sampling would provide substantially ... more information, and allow a more direct comparison of the two data sets to be realised, particularly ...

   Meeting Document : WG-FSA-99/31 : Auteur(s): C.D. Jones (USA), E.R. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)

10. EFFECT OF STERN-SETTING TUNNEL ON THE SINK RATE OF INTEGRATED WEIGHT LONGLINE (IWL)

    Abstract:  This paper describes a new vessel modification to allow setting of longlines via a ... steel tube, built in to the longliner during a dry-dock refit. The tube angles downwards from where the ... tested in a series of sets using time-depth recorders during current sea-trials and approximately three ...

    Meeting Document : WG-FSA-08/38 : Auteur(s): I. Hay and G. Robertson (Australia)

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