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1. Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba: implications for inverting zooplankton spectral acoustic signatures for angle of orientation

   and video footage from several Antarctic krill were carried out to determine the effect of animal ... incidence relative to the incident acoustic wave exhibited widely spaced, deep nulls, whereas off-broadside ... echo spectra had a more erratic structure, with several closely spaced nulls of variable depth. The ... pattern of changes in echo spectra with orientation for the experimentally measured acoustic returns was ...

   Meeting Document : WG-EMM-99/41 : Автор(ы): L.V. Martin Traykovski (USA), R.L. O’Driscoll (New Zealand) and D.E. McGehee (USA)

2. Krill biomass estimates for South Georgia, December and January 1996/97

   conducted within two 80 x 100 km areas over the shelf-break to the north-east and north-west of South ... Georgia during December/January 1996/97. Netting suggested that the mean lengths of krill within the ... to be attributable to krill were identified on the basis of the difference between mean volume ... volume backscattering strengths at 120 kHz were scaled by the appropriate TS value to determine mean ...

   Meeting Document : WG-EMM-97/48 : Автор(ы): Goss, C., Watkins, J.L., Brierley, A.S.

3. Validation of age determination in Notothenia coriiceps, by means of a tag-recapture experiment at potter cover, South Shetland Islands

   Shetland Islands, in successive years from 1989 to 1992, 9 were recaptured at the same site after periods ... of 11-21 months. A comparison was carried out between the annuli found in scales removed before and ... after the period of liberty. In scales of those specimens recovered after 11-13 months, one extra ... annulus was laid down. The same analysis in one individual recovered after 21 months resulted in 2 extra ...

   Meeting Document : WG-FSA-94/12 : Автор(ы): E.R. Barrera-Oro and R.J. Casaux (Argentina)

4. A proposal for a standardised survey for Antarctic toothfish in McMurdo Sound

   through the annual sea ice in McMurdo Sound to monitor the age composition, diet, maturity, and local ... integrated with ongoing collaborative research programmes to determine the importance of toothfish to ... mammalian predators in the area. Age composition, physiology, and diet objectives can be met with the ... current design. However, power analysis based on historical catch data suggests that the sample size ...

   Meeting Document : WG-FSA-15/33 : Автор(ы): S.J. Parker, S.M. Hanchet and S. Mormede (New Zealand)

5. A review and analysis of indices from CEMP data

   examine the temporal patterns in the available time series as well as inter-site and inter-species ... Abstract:  A data checking and validation process was undertaken for the data held in the CCAMLR ... comparisons. A series of questions designed to improve the understanding of the characteristics of different ... paramters is provided for discussion by the Working Group. Author(s):  Secretariat Title:  A review and ...

   Meeting Document : WG-EMM-12/62 : Автор(ы): Secretariat

6. Approaches to evaluating and testing of CEMP methods for parameters A1, A5 and A7

   Abstract:  The methods and presentation of CEMP parameters A1, A5 and A7 where evaluated using ... simulated time-series data. The effects of sampling timing and intensity during five-day periods for ... around the peak arrival/fledging date may introduce substantial bias in CEMP parameters A1and A7. The ... description of foraging trip duration using the mean arising from a bimodal distribution of trip durations may ...

   Meeting Document : WG-EMM-04/60 : Автор(ы): G. Watters (USA) and K. Reid (United Kingdom)

7. Progress report of Chilean research on albatross ecology and conservation

   . chrysostoma, and feed both in Antarctic waters and the South-eastern Pacific. Consequently they are subject to ... two different management regimes. This fact and the article XI of the CCAMLR Convention, suggests the ... need of harmonizing conservation measures in both areas. In this progress report we describe the main ... outcome of two research programs that are currently underway, which aim to establish if the effect of the ...

   Meeting Document : WG-FSA-02/18 : Автор(ы): J. Arata and C.A. Moreno (Chile)

8. Spawning activity of mackerel icefish at South Georgia

   Abstract:  Historical information is assessed on the distribution of spawning and larval mackerel ... April within and close to the bays on the north side of the island. Some spawning at much lower ... intensity almost certainly occurs over much of the shelf although the intensity appears to be small in ... comparison with inshore spawning. There is some evidence for spawning at Shag Rocks although the precise ...

   Meeting Document : WG-FSA-00/27 : Автор(ы): I . Everson, A. North (United Kingdom) and K.-H. Kock (Germany)

9. Foraging ecology of grey-headed mollymawks at Marion Island in relation to longline fishing activity

   operations in the southern Indian Ocean. We studied the foraging ecology of breeding grey-headed mollymawks ... at Marion Island, by tracking their foraging trips and sampling their diets. During the incubation ... period, birds made longer foraging trips, mostly towards the subtropical convergence and Subantarctic ... longline fishing. During the early post-guard phase, foraging trips were shorter and to the southwest of ...

   Meeting Document : WG-FSA-99/25 : Автор(ы): D.C. Nel, J.L. Nel, P.G. Ryan, N.T.W. Klages (South Africa), R.P. Wilson (Germany) and G. Robertson (Australia)

10. KRILL DENSITY ESTIMATES IN CCAMLR SUBAREA 48.6 BASED ON ACOUSTIC DATA COLLECTED DURING JANUARY–MARCH 2008

    Abstract:  A multidisciplinary survey was conducted with the RV ‘G.O. Sars’ as part of the ... S in the sparsely studied CCAMLR subarea 48.6. The mean density of Antarctic krill, integrated to ... 270 m depth was 4.42 g/m2. The krill were mainly found in strong aggregations and were patchily ... distributed. The majority of the detected krill was distributed between 40 and 80 m depth, and approximately ...

    Meeting Document : WG-EMM-09/45 : Автор(ы): G. Skaret, B.A. Krafft and R. Korneliussen (Norway)

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