Résultats de la recherche

1. The biology of the spiny icefish (Chaenodraco wilsoni Regan, 1914)

   . wilsoni has been exploited on a commercial scale from the late 1970’s to the end of the 1980’s off ... Abstract:  The most abundant icefish species observed in catches off the northern tip of the ... Antarctic Peninsula in the last 25- 30 years has been the spiny icefish Chaenodraco wilsoni Regan 1914. C ... Joinville – D’Urville Islands (CCAMLR Statistical Subarea 48.1) and in the Cosmonauts and Cooperation Seas ...

   Meeting Document : WG-FSA-07/P1 : Auteur(s): K.-H. Kock, L.V. Pshenichnov, C.D. Jones, J. Gröger and R. Riehl. (Polar Biol., 31 (3): 381–393 (2007))

2. Report of the Workshop for the International Coordinated Survey in conjunction with CCAMLR-2000 Survey

   krill density; near the east end of Elephant Island, mid-way between Elephant and King George Islands ... Abstract:  Vessels from Japan, Republic of Korea, Peru and the USA had participated in the conduct ... with CCAMLR 2000 survey. Time-series acoustic data from the coordinated survey were analyzed. Excluding ... the highest and lowest surveys, biomass densities on three remaining surveys were 49.2 g m-2 (CV 19.5 ...

   Meeting Document : WG-EMM-01/68 : Auteur(s): Delegations of Japan, Rep. of Korea, USA and Peru

3. An exploration of the biological data used in the CCAMLR Subarea 48.3 Patagonian toothfish stock assessments

   or maturity through time, after the effects of confounding factors were included in the analysis ... change. The Working Group recommended that key assessment parameters be reviewed and that changes in the ... fishery dynamics that would impact their estimation be explored. The biological productivity parameters in ... subarea 48.3 are analysed here, particularly whether the proportion of females in the catch, maturity at ...

   Meeting Document : WG-SAM-2019/32 : Auteur(s): E. MacLeod, K. Bradley, T. Earl, M. Söffker and C. Darby

4. A study on calibration for commercial echosounder using the bottom backscattering strength from a fishing vessel near the South Shetland Islands in Antarctic

   krill) over the total acoustic signals were 26.95% and 92.04%, respectively before and after the ... fishing vessel to use it in estimating biomass of Antarctic krill (Euphausia superba). The method of ... calibration was to analyze the difference between the bottom backscattering strength of the commercial ... echosounder (i.e. ES70) and the scientific echosounder (i.e. EK60) at some transects designated by CCAMLR ...

   Meeting Document : WG-EMM-16/61 : Auteur(s): Delegation of the Republic of Korea

5. Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass

   the spawning stock (as a proportion of SB0) at the end of the projection run (level of escapement ... krill yields according to decision rules that relate spawning stock status to the median unexploited ... spawning biomass, SB0. The first model has been developed specifically for krill, the krill yield model ... , while the second is a generalised yield model. The decision rules relate to the effects of a specified ...

   Meeting Document : WG-EMM-97/45 : Auteur(s): de la Mare, W.K., Constable, A.J.

6. Alternative method of the age composition assessment on the basis of surveys length data using mixture distributions

   -after-boostrap” method was proposed. Author(s):  P. Gasyukov (Russia) Title:  Alternative method of the ... Abstract:  On the basis of the bottom trawl surveys carried out by Russia and Great Britain during ... 2000, 2002, 2004 in the South Georgia area, it is demonstrated that the method by Aitchison and ... bootstrap method result in different estimates of mean fish density in the length series. Verification of ...

   Meeting Document : WG-FSA-05/78 : Auteur(s): P. Gasyukov (Russia)

7. Scientific contribution to the 2016 review of Conservation Measure 51-07: Part 1 – rationale, method and data for a risk assessment framework for distributing the krill trigger level

   Conservation Measure 51-07, which is due to lapse at the end of the 2015/16 fishing season, and presented its ... undertaken to further develop a risk assessment approach to spatially subdivide the trigger level through an ... e-group and to deliver these outputs to Scientific Committee.  The risk assessment approach for ... subdividing the trigger level in CM 51-07 aims to minimise the risk to predator populations, in particular ...

   Meeting Document : WG-FSA-16/47 Rev. 1 : Auteur(s): A. Constable (on behalf of the e-group on CM 51-07 WG-EMM review)

8. The ‘CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean’

   comparative biogeographic analyses or discovering marine biodiversity hotspots. At the end of five years of ... Abstract:  The "CAML / SCAR-MarBIN Biogeographic Atlas of the Southern Ocean" Claude De ... , developing the bio/ecoregionalisation of the Southern Ocean, designing marine protected areas, conducting ... extensive biodiversity exploration and assessment by the Census of Antarctic Marine Life (www.caml.aq), with ...

   Meeting Document : WS-MPA-11/15 : Auteur(s): C. De Broyer (Belgium) and P. Koubbi (France)

9. Problems and prospects for the Convention on the Conservation of Antarctic Marine Living Resources twenty years on

   Abstract:  Twenty years after its adoption, the Convention on the Conservation of Antarctic Marine ... considering the impact of existing or proposed fisheries on the entire ecosystem, rather than on just the ... harvested species. However, the recent picture of fisheries activities within the Convention area suggests a ... substantial – and perhaps widening- gap between theory and practice. The fishery that has most clearly proved ...

   Meeting Document : CCAMLR-XX/BG/18 : Auteur(s): Submitted by ASOC

10. Biomass estimates of Antarctic krill based on survey conducted by the Chinese fishing vessel FV Fu Rong Hai during the 2019 Area 48 survey

    were presented to the WG-EMM 2019 meeting. After the meeting, the acoustic data were processed further ... Abstract:  As a contribution to the joint effort on the large-scale international synoptic krill ... survey of Area 48 (2019 Area 48 survey), the Chinese krill fishing vessel F/V Fu Rong Hai conducted the ... acoustic survey around the South Shetland Islands and the Elephant Islands in the Subarea 48.1 from 5 th to ...

    Meeting Document : SG-ASAM-2019/07 : Auteur(s): X. Wang, X. Yu, X. Zhao, J. Zhang, G. Fan, J. Zhu and Y. Ying

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