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1. Descriptive analysis of mesopelagic backscatter from acoustic data collected in the Ross Sea

   Abstract:  This report presents results from a pilot study to investigate the use of acoustics to ... estimate middle trophic level prey organisms (e.g., krill and mesopelagic fish) in the Ross Sea. Single ... frequency (38 kHz) acoustic data were available from New Zealand longline vessels participating in the ... data were collected from the research vessel Tangaroa during a voyage to the western Ross Sea in ...

   Meeting Document : WG-EMM-06/11 : Author(s): R.L. O’Driscoll (New Zealand)

2. Estimation of natural mortality using catch-at-age and aged mark-recapture data: a simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation

   other model parameters in integrated assessments via CASAL for the Heard and McDonald Islands (HIMI ... R. Both use the same Poisson likelihood for annual number of recaptures by age class, and both model ... the age-structured population for each fishing year by annual recursive use of difference equations ... (ODE) for within-year population dynamics. The difference in the models derives from differences in ...

   Meeting Document : WG-SAM-10/11 Rev. 1 : Author(s): S.G. Candy (Australia)

3. Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia

   albatrosses were carried out at South Georgia in the 2003/04 breeding season. Wandering albatrosses were ... -headed albatrosses were breeding at South Georgia in the 2003/04 season. Compared to results from a ... predominantly yacht-based survey of black-browed and grey-headed albatrosses over the whole of South Georgia ... conducted in the mid 1980s, numbers of these two species appear to have decreased by 26% and 14 ...

   Meeting Document : WG-FSA-04/71 : Author(s): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)

4. REVIEW OF CCAMLR ACTIVITIES ON MONITORING MARINE DEBRIS IN THE CONVENTION AREA

   in Area 48. Overall non-fishing debris items (mostly packaging items) have made up the majority of ... Bird Island, South Georgia over the last 10 years, but only small amounts from the other sites. Plastic ... . The most common entangling materials were plastic packaging bands, synthetic string/longline and ... fishing nets. The Wandering albatross has more debris reported from its colonies than any other species ...

   Meeting Document : WG-IMAF-09/08 : Author(s): Secretariat

5. Using production models to assess the stock of Paralomis spinosissima around South Georgia Island

   ) data from the 1991/92 fishery for Paralomis spinosissima around South Georgia Island. The four models ... recruitment function. The best fitting model was Model 1. Model 1 had three parameters: an estimate of initial ... abundance (N0), an estimate of the scaling coefficient relating abundance to CPUE (q), and a recruitment ... parameter (a). The generalized likelihood ratio was used to place 95% confidence bounds around the parameter ...

   Meeting Document : WG-FSA-93/23 : Author(s): George Watters (USA)

6. Microincrement analysis in otoliths of Notothenia rossii fingerlings from the South Shetland Islands to estimate early life history timings and to validate annulus formation

   timings and to validate annulus formation. Although in the literature it has been reported that N. rossii ... in the South Shetland Islands hatches in spring, our daily ring back counting in otoliths from the ... between February and March and another in winter between July and August. The maximum and minimum ages ... estimated for the pelagic blue phase and demersal brown phase fingerlings were respectively 227 and 240 days ...

   Meeting Document : WG-FSA-12/04 : Author(s): E. Barrera-Oro (Argentina) and M. La Mesa (Italy)

7. Trophic niche of the Antarctic toothfish caught in SSRU 88.3 as inferred from fatty acids and stable isotopes

   of toothfish and their potential prey (bycatch and stomach contents), captured in fisheries in the ... Small Scale Research Units (SSRUs) 88.3 (the Pacific Ocean sector, POS) in austral summer during 2016 ... –2018, making comparisons with previous dataset obtained from the Ross Sea shelf (RSS) and the Indian ... Ocean sector of the Antarctica during 2012–2017. We found significant differences in size distributions ...

   Meeting Document : WG-FSA-18/21 : Author(s): C.-K. Kang, S.-G. Choi, H.Y. Kang, Y.-J. Lee, S. Chung and D.H. An

8. Predation on fish by the southern elephant seal, Mirounga leonina, at King George Island, South Shetland Islands, as reflected by stomach lavage

   Abstract:  Between november and february of the years 1993/94, 1995/96, 1996/97, 1997/98, 1998/99 ... , were stomach lavaged at King George Island in order to analyse their diet. The two major prey types ... remains. The aim of the present paper was to report data on fish prey obtained from seal stomachs ... throughout the whole study period. One hundred and forty five sagittal otoliths were removed from 16 stomachs ...

   Meeting Document : WG-EMM-01/58 : Author(s): G.A. Daneri and A.R. Carlini (Argentina)

9. Foraging interactions of wandering albatrosses Diomedea exulans breeding on Marion Island with longline fisheries in the southern Indian Ocean

   attempt to scavenge baited hooks deployed by long-line fishing vessels. We studied the foraging ecology of ... Wandering Albatrosses breeding on Marion Island in order to assess the scale of interactions with known long ... -line fishing fleets. During incubation and large chick-rearing, birds foraged farther away from the ... overlap with the local Patagonian toothfish Dissostichus eleginoides long-line fishery. Tracks of birds ...

   Meeting Document : WG-FSA-01/10 : Author(s): D.C. Nel, P.G. Ryan, J.L. Nel, N.T.W. Klages (South Africa), R.P. Wilson (Germany) and G. Robertson (Australia)

10. The effects of an experimental hake Merluccius capensis/paradoxus longline fishery on Procellariiform seabirds in South Africa - a preliminary investigation

    Abstract:  Due to the detrimental effect longline fisheries have had on seabirds in other parts of ... the world, concern was raised as to the effect an experimental Hake longline fishery would have on ... 100% of the catch on longlines during setting despite the fact that they were not the most abundant ... species around fishing vessels either during the day or night. Extrapolations showed that 2 vessels were ...

    Meeting Document : WG-FSA-95/21 : Author(s): Barnes, K.

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