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1. Further development of a krill fishery simulation model

   Abstract:  The model of the krill fishery presented in 1993 (wg-Krill-93/14) refined and applied ... catch. Closure of Livingston Island for the breeding period resulted in a 60% reduction in overlap with ... to account for variability in catch rates. The most successful management regime is found to be one ... the model predicts a 90% reduction in overlap with foraging predators, and a 15 to 20% reduction in ...

   Meeting Document : WG-Joint-94/04 : Автор(ы): D.J. Agnew (Secretariat)

2. Comparison of equal-area cylindrical and circular piston transducers

   Abstract:  Design of sondes for in situ measurement of zooplankton or other scatterers requires ... choosing among alternative transducer geometries. This contribution addresses the problem of choosing ... between cylindrical and circular piston transducers by comparing the performance of the two according to ... dimensions of six fabricated cylindrical transducers, whose beam patterns have been measured by the ...

   Meeting Document : WG-EMM-95/08 : Автор(ы): Foote, K.G.

3. Trade data analysis – Reconciliation of CDS data with fine-scale catch and effort data

   demonstrated the effectiveness of the CDS to trace the catch of toothfish caught in the CCAMLR Convention Area ... implemented in the reconciliation of trade data and other relevant CCAMLR datasets.  Author(s):  CCAMLR ... Abstract:  The reconciliation of CDS data with monthly fine-scale catch and effort data has ... ongoing. This reconciliation has demonstrated the success in the methodology and will in the future be ...

   Meeting Document : CCAMLR-XXXVII/BG/14 Rev. 1 : Автор(ы): CCAMLR Secretariat

4. Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean.

   of antifreeze in the former species. Dissostichus eleginoides showed a resting stage in sexual ... latitudinal patterns in sexual maturity and size composition. The study indicates that the management of ... shallower banks (<1 000 m), while D. mawsoni was caught on deeper slopes (>1 500 m). Separation of the ... two species by depth may be related to physical intolerance to cooler temperatures because of the lack ... Antarctic coastal areas west of 90°E (mainly in Division 58.4.2). The mean GSIs of 6.52 for males and ... the lack of antifreeze in the former species. Dissostichus eleginoides showed a resting stage in ... over spe- cies identity in some areas, notably Elephant Island (Gon and Heemstra, 1990). One of the ... Plateau in the Indian Ocean, commenced in the 2003/04 season under the aus- pices of CCAMLR (SC-CAMLR ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 145–153 : Автор(ы): Taki, K., M. Kiyota, T. Ichii and T. Iwami

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

   of Antarctic fur seals, Arctocephalus gazella, in the South Shetland Archipelago. Since all censuses ... was developed for assessing uncertainties in the estimates of the counts (inter and intra-observer ... undertaking regional surveys of land-based predators in the future. Censuses developed at the SSSI have proved ... -1,74%CV, while inter-observer error was within 3% of the overall mean. The relationship between census ...

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

6. Density and biomass of Antarctic krill around South Shetland Islands using by 2-dB difference method

   the west of the South Shetland Islands. The mean length/height ratio of krill aggregations in the west ... aggregations in the Elephant Island peripheries and south of South Shetland Islands were higher than those in ... of the South Shetland Islands (64.5) was higher than that in the south (35.9) and the Elephant Island ... Antarctic krill (4.9 to 12.0 dB) and fish (-4.0 to-0.2 dB). The distributions and mean Sv of krill ...

   Meeting Document : SG-ASAM-17/04 : Автор(ы): S.-G. Choi, K. Lee and D. An

7. A distribution-free model of length-frequency distribution to inform fishery stratification for integrated assessments

   significantly influence the LFD helps in evaluating how to account for important differences in availability and ... /or gear specific selectivity. A distribution-free model of LFD is described which is fitted to the ... set of length quantiles L for a predetermined set of corresponding probabilities P (in this instance ... 0.05, 0.1 to 0.9 in 0.1 increments, and 0.95), constructed from individual length measurements of ...

   Meeting Document : WG-SAM-13/18 : Автор(ы): S. Candy, P. Ziegler and D. Welsford (Australia)

8. Aggregation patterns of pelagic predators and their principal prey, Antarctic krill, near South Georgia

   is an explicit consideration of the separation in space between swarms of krill and aggregations of ... Abstract:  1. We examine the spatial distributions of pelagic seabirds and. fur seals near South ... Georgia, and asked to what extent the distributions of these predators were influenced by the spatial ... survey of the waters surrounding Bird Island, South. Georgia. Predator abundance was estimated visually ...

   Meeting Document : WG-CEMP-93/13 : Автор(ы): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)

9. Long-distance movements of tagged Patagonian (Dissostichus eleginoides) and Antarctic toothfish (D. mawsoni)

   to date the majority of tagged toothfish movements were very restricted in distance and requested ... Abstract:  At WG-SAM-16, the Working Group discussed the implications of toothfish moving long ... distances after the Chilean research survey for Dissostichus spp. in Subarea 48.2 recaptured one tagged fish ... in 2016 that had been released in Subarea 48.6 in 2011 (WG-SAM-16/20). The Working Group noted that ...

   Meeting Document : WG-FSA-16/25 Rev. 1 : Автор(ы): CCAMLR Secretariat

10. Comparison of NASC values calculated by swarm-based and grid-based acoustic data processing methods for Antarctic krill density estimation

    Abstract:  The one nautical mile integrated Nautical Area Scattering Coefficient (NASC) values of ... four surveys in 48.1 fishing area were calculated using both the swarm-based and conventional grid ... -based acoustic data processing methods. All parameter settings were consistent with the reports of SG ... -ASAM-2017 except that the dB difference window of Sv 120 kHz-Sv 38kHz is set 0 to 20 dB. And the two ...

    Meeting Document : SG-ASAM-18/04 Rev. 1 : Автор(ы): X. Yu, X. Wang and X. Zhao

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