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1. Krill density, biomass, proportional recruitment and recruitment index in the elephant island region during the period 1977 to 1997

   absolute recruitment). After a period of low krill density in the area for almost a decade, krill density ... Abstract:  The Elephant Island long-term data set was updated for krill density and proportional ... indices for this time series. New survey results of the past two seasons indicate a very successful 1994 ... recovery of the stock. Author(s):  Loeb, V., Siegel, V., Gröger, J. Title:  Krill density, biomass ...

   Meeting Document : WG-EMM-97/29 : Autor(es): Loeb, V., Siegel, V., Gröger, J.

2. Estimates of global krill abundance based on recent acoustic density measurements and their implications for the calculation of precautionary catch limits and the designation of management areas

   between 64 and 137 million tonnes- at the low end of values that have been suggested in the past. The ... Abstract:  The global abundance of krill is estimated using recent estimates of krill density from ... acoustic surveys and historical information on the overall range of krill. The biomass estimates fall ... underestimation of the range, or of the acoustic biomass estimates, the possibility of a large, undetected krill ...

   Meeting Document : WG-EMM-99/22 : Autor(es): S. Nicol, A. Constable and T. Pauly (Australia)

3. Insights from the study of the last intact neritic marine ecosystem

   , after compiling information from 19 subregions, on how the exploited shelf ecosystems of the North ... their biodiversity and climate (cold vs warm). By the ecological ‘rules’ laid out, the Ross Sea should ... be structured by predation. Analysis has shown, however, that some portions of the Ross Sea follow ... the rules but others do not. This is apparent, though, only because the Ross Sea, unlike the remaining ...

   Meeting Document : WG-EMM-07/P3 : Autor(es): D. Ainley

4. Korean research project on the ecosystem structure and function of the Ross Sea region MPA (2017–2022)

   that end, investigations on the spatial distribution of krill, biodiversity, the structure of the food ... Abstract:  The Ross Sea region has been known as an ecologically important area in the Antarctic ... with an extraordinary rich biota. To conserve marine living resources and the ecosystem of the Ross Sea ... , CCAMLR designated the area as a Marine Protected Area (MPA) at the 35th annual meetings in 2016. Since ...

   Meeting Document : SC-CAMLR-XXXVI/BG/17 : Autor(es): Delegation of the Republic of Korea

5. 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 : Autor(es): K.-H. Kock, L.V. Pshenichnov, C.D. Jones, J. Gröger and R. Riehl. (Polar Biol., 31 (3): 381–393 (2007))

6. 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 : Autor(es): Delegations of Japan, Rep. of Korea, USA and Peru

7. 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 : Autor(es): E. MacLeod, K. Bradley, T. Earl, M. Söffker and C. Darby

8. 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 : Autor(es): Delegation of the Republic of Korea

9. 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 : Autor(es): de la Mare, W.K., Constable, A.J.

10. 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 : Autor(es): P. Gasyukov (Russia)

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