Résultats de la recherche

1. Preliminary study on reproduction in Champsocephalus gunnari from Subarea 48.3, Dr Eduardo Holmberg survey, February/March 1994

   Abstract:  A preliminary histological analysis on the ovarian development in Champsocephalus ... commonly used. Oocytary resorption processes were observed during ovarian maturation. In some cases the ... ovaries presented few atretic oocytes; in others a generalized regression was found. In the southwest ... similar to that reported for the same species in the 1991 summer season. Author(s):  G.J. Macchi and E.R ...

   Meeting Document : WG-FSA-94/28 : Auteur(s): G.J. Macchi and E.R. Barrera-Oro (Argentina)

2. Preliminary Results of a Bottom Trawl Survey Around Elephant Island in May/June 1986

   fromboard RV "Polarstern" in May/June 1986 give some insight into spawning activities and changes ... in length compositions and biomass estimates in Notothenia rossii, N. gibberifrons, N. coriiceps ... only observed in N. c. neglecta, whereas very little or no spawning was evident for N. rossii, C ... . gunnari and Ch. aceratus. Peak spawning of N. c. neglecta is limited to only a few weeks. In populations ...

   Meeting Document : WG-FSA-86/01 : Auteur(s): K.-H. Kock (FRG)

3. Two decades of variability in krill predators at Bird Island, South Georgia and their potential as ecosystem indicators

   year intervals and the most severe occurred in 2009. Above average concurrent sea surface temperature ... Abstract:  The breeding performance of seabirds and seals at Bird Island, South Georgia, in the ... variability in variables for four species to evaluate their potential as ecosystem indicators. These variables ... survival and mass). Krill in the diet was correlated across the three bird species (gentoo, Pygoscelis ...

   Meeting Document : WG-EMM-12/16 : Auteur(s): S.L. Hill, C.M. Waluda, H.J. Peat and S. Fielding (United Kingdom)

4. Progress report on the research longline fishery of Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13

   Abstract:  The multi-year research plan that was adopted for the exploratory longline fishery in ... Statistical Subarea 48.6 and formulated in CM 41-04 (2012) is briefly summarised and progress made by Japan ... and South Africa during the first 6 months is presented. Two vessels participated in the fishery and ... so far they have concentrated their sampling effort in the southern section (south of 60˚S), where ...

   Meeting Document : WG-SAM-13/05 : Auteur(s): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)

5. Proposal for continuation of Australia’s research plan for exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions 58.4.1 and 58.4.2)

   Abstract:  Exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions ... 58.4.1 and 58.4.2) began in 2003. Robust stock assessment and catch limits according to CCAMLR decision ... rules remain to be determined for these Divisions. The 2015/16 season was the first of a three-year ... biological sampling undertaken by Australia during 2015/16 in SSRUs 58.4.1E and 58.4.1G. Here, we evaluate ...

   Meeting Document : WG-SAM-16/09 : Auteur(s): Delegation of Australia

6. DETECTION OF VULNERABLE MARINE ECOSYSTEMS IN THE SOUTHERN SCOTIA ARC (CCAMLR SUBAREAS 48.1 AND 48.2) THROUGH RESEARCH BOTTOM TRAWL SAMPLING AND UNDERWATER IMAGERY

   Abstract:  High densities of vulnerable marine ecosystem (VME) indicator taxa were encountered in ... Subareas 48.1 and 48.2). These areas, which have been proposed for inclusion in the CCAMLR VME registry ... were detected in most cases utilizing occurrence and abundance of VME indicator taxa in research bottom ... trawl samples, as well as by way of in situ observations with an underwater photographic/video imaging ...

   Meeting Document : WG-EMM-09/32 : Auteur(s): S.J. Lockhart and C.D. Jones (USA)

7. Practical options for developing feedback management for the krill fishery in Subarea 48.2

   might facilitate the development of feedback management procedures for the krill fishery in Area 48. In ... reviewing the state of ecological knowledge for Subarea 48.2, we conclude that movement towards Stage 2 (in ... knowledge base, but that this will take time, especially in the context of climate change. We suggest that ... recent research initiatives will help provide new information; however, a fundamental step-change in ...

   Meeting Document : WG-EMM-14/04 : Auteur(s): P. Trathan (United Kingdom), M. Santos (Argentina) and O.R. Godø (Norway)

8. East Antarctica Planning Domain MPA Planning Reference Document #2: Draft MPA Report Part 2 - Descriptions of the proposed EARSMPA, the four highlighted MPAs and Activities in the Planning Domain

   Planning Domain presented to WG-EMM in 2014 (WG-EMM-14/48). The draft MPA Report for the East Antarctica ... Planning Domain submitted to WG-EMM in 2014 was regarded as a suitable synthesis of papers previously ... updated following advice from Members of WG-EMM in 2014.  This updated report is provided in three parts ... - Descriptions of the proposed EARSMPA, the four highlighted MPAs and Activities in the Planning Domain (WG-EMM ...

   Meeting Document : SC-CAMLR-XXXIII/BG/39 : Auteur(s): Delegations of Australia and France

9. DEVELOPMENT OF SPATIALLY EXPLICIT AGE-STRUCTURED POPULATION DYNAMICS OPERATING MODELS FOR ANTARCTIC TOOTHFISH IN THE ROSS SEA

   operating models for Antarctic toothfish in the Ross Sea. The operating models consider both a coarse-scale ... spatial distribution parameters as an aid in evaluating the operating models. The models are implemented ... in the generalised Bayesian population dynamics model, the Spatial Population Model (SPM). The SPM ... discrete time-step state-space model that represents a cohort-based population age structure in a spatially ...

   Meeting Document : WG-SAM-09/18 : Auteur(s): A. Dunn, S. Rasmussen and S. Hanchet (New Zealand)

10. An acoustic estimation of krill densities to the north of South Georgia in January 1994

    Abstract:  Dual frequency (38 and 120 kHz) acoustic surveys were carried out in two regions along ... the northern coast of South Georgia from RRS lames Clark Ross during January 1994. Difference in ... densities in both regions were extremely low in comparison with previously published density estimates, and ... provide further evidence of an extreme krill paucity around South Georgia in the 1993/4 season. Author(s ...

    Meeting Document : WG-EMM-95/74 : Auteur(s): Watkins, J.L., Brierley, A.S.

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