Résultats de la recherche

1. Large scale circulation in the South Atlantic: estimates from giant iceberg drift rates

   Abstract:  The paper reports work currently in progress and presents estimates for ocean ... circulation in the Scotia Sea. The estimates are derived from the drift rates of giant icebergs calved in the ... Weddell Sea since 1974. Comparison with other estimates is limited by the lack of studies reported in the ... literature, however, efforts to make these comparisons are in hand. Author(s):  P.N. Trathan and C. Symon ...

   Meeting Document : WS-Flux-94/06 : Auteur(s): P.N. Trathan and C. Symon (United Kingdom)

2. Proposal of the Russian Federation to establish research TAC for closed SSRU in Subareas 88.1 and 88.2

   research TAC in open and closed SSRUs of the Ross Sea has been raised. In accordance with established ... practice, as a rule, if research goes on in open SSRU then the necessary catch limits are taken from the ... unit`s TAC. If research fishing goes on in closed SSRU then as a rule catch limits are taken from the ... biggest TAC in the Ross Sea – from SSRUs HIK. This proposal is about establishing of research TAC in all ...

   Meeting Document : WG-SAM-15/20 : Auteur(s): Delegation of the Russian Federation

3. Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2017/18

   Abstract:  The Amundsen Sea region toothfish fishery has been operating since 2003. In 2015, a ... research plan was developed to estimate the toothfish biomass the area, particularly in the South. The ... toothfish in the ASR be made a priority to develop annual age-length keys and age frequencies. We further ... recommend that catch limits in the ASR be calculated following the trend analysis rules developed by WG-FSA ...

   Meeting Document : WG-FSA-18/36 : Auteur(s): S. Mormede and S. Parker

4. A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2018 random stratified trawl survey

   Abstract:  The annual random stratified trawl survey was undertaken in Division 58.5.2 in the ... , abundance and yield in Division 58.5.2 to the west of 79 o 20’ E using standard CCAMLR methods (CMIX and ... Generalized Yield Model). The 2018 survey showed a large 2+ cohort in the population. Catches of 443 t in the ... 2018/19 season and 320 t in the 2019/20 season respectively satisfied the CCAMLR decision rules. Author ...

   Meeting Document : WG-FSA-18/56 : Auteur(s): D. Maschette and D. Welsford

5. Investigations on tagging data in the Kerguelen Islands Patagonian toothfish fishery (division 58.5.1)

   Abstract:  In 2014, FSA-14-36r1 presented a new assessment of Patagonian toothfish in the French ... EEZ. A singularity in the tagging fits was observed by the working group. A lower number of recaptures ... in the first year compare to the second year was noted (figure1). This paper is an overview of ... tagging data in Kerguelen area and the impacts on the Casal assessment. Author(s):  R. Sinegre and G ...

   Meeting Document : WG-SAM-15/43 : Auteur(s): R. Sinegre and G. Duhamel (France)

6. Chinstrap penguins alter foraging and diving behaviour in response to krill size

   Abstract:  Penguins may exhibit plasticity in their diving and foraging behaviors in response to ... changes in prey availability. Chinstrap penguins are dependent predators of Antarctic krill in the Scotia ... Sea region. Both the sizes of krill found in penguin diets and acoustic estimates of krill biomass ... have fluctuated in recent years. We therefore examined the diet of chinstrap penguins at Livingston ...

   Meeting Document : WG-EMM-07/11 : Auteur(s): A.K. Miller and W.Z. Trivelpiece (USA)

7. Quantifying within- and between-season variability in Adélie penguin fledgling weights: statistical and practical implications for detecting change

   Béchervaise Island and use them in a power analysis as a continuation of the CEMP review. The statistical ... principles using raw data as recommended in Southwell et al. (2004). These models should be viewed as initial ... fledgling weights with a decline in resource availability, the consideration of total chick failure during ... severe food shortages and a possible change in variance associated with a change in the mean value. With ...

   Meeting Document : WG-EMM-05/20 : Auteur(s): L. Emmerson, C. Southwell and J. Clarke (Australia)

8. A study of Patagonian toothfish (Dissostichus eleginoides) post tagging survivorship in Subarea 48.3

   were carried out on 8 different vessels fishing in 48.3. Toothfish were selected for tagging as normal ... , and then were kept in tanks with varying degrees of seawater replacement for at least 12 hours after ... animals were included in the final analysis, with an overall survivorship of 89%. There were significant ... differences between vessels, and smaller animals and animals in better initial condition had a slightly higher ...

   Meeting Document : WG-FSA-05/19 : Auteur(s): D. J. Agnew, J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones (United Kingdom), G. Breedt, S. Du Plessis, J. Van Heerdon (South Africa) and G. Moreno (Spain)

9. Interannual variability of polynya extent in the Antarctic Ocean

   ), coastal polynya and open ocean polynya, in the Southern Ocean. Polynya accelerates oceanic and atmospheric ... polynyas influence biological activity in the winter and spring season. However, there are no minute ... and converted into the yearly mean. The time series of the yearly mean in the whole Antarctic Ocean ... are trending like a pulse wave. In the whole Antarctic Ocean, peak years of polynyas extent are in the ...

   Meeting Document : WG-EMM-01/34 : Auteur(s): M. Naganobu and K. Segawa (Japan)

10. Beach litter accumulation and retention at sub-Antarctic Marion Island: trends in relation to longline fishing activity

    1998 are reported, and compared to surveys done in 1984 and 1995, prior to the onset of unregulated ... illegal fishing in this area. An exponential increase in the litter accumulation was noted in annual ... while fishing equipment also doubled during this period. An increase in the number and proportion of ... in light of reports of illegal fishing vessels using Port Louis, Mauritius, to land catches and ...

    Meeting Document : CCAMLR-XVII/BG/25 : Auteur(s): Delegation of South Africa

Pages