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1. Is our attempt to estimate biomass of Antarctic fish from a multi-species survey appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited

   . The species has been heavily fished at the beginning of the 1970’s. The closure of the fishery for ... are more or less evenly distributed over the area at the time of the survey. This assumption is ... Abstract:  Notothenia rossii was the first target species of the fishery in the Southern Ocean ... this species was one of the first conservation measures CCAMLR adopted in 1985. Fish biomass within a ...

   Meeting Document : WG-FSA-03/12 : Autor(es): K.-H. Kock (Germany), M. Belchier (United Kingdom) and C.D. Jones (USA)

2. Preliminary assessment of Patagonian toothfish in Subarea 48.3

   terminal assessment year continues to be estimated at around 54% of virgin biomass, consistent with the ... Abstract:  A preliminary assessment of toothfish (Dissostichus eleginoides.) in Subarea 48.3 is ... presented. The assessment results from this year’s analyses are very similar to those of 2011. SSB in the ... and to catch at age observations and achieves this by assuming a different selection pattern for the ...

   Meeting Document : WG-FSA-13/30 : Autor(es): R. Scott (United Kingdom)

3. Evaluation on the performance of echosounder on a fishing vessel using maximum seabed backscattering

   Abstract:  The performance of echo sounder system is critical for using acoustic data collected ... and 2018) collected at a relatively fixed location with bottom depth around 200 m were used to ... calibration. The largest inter-annual difference of the mean value of the maximum seabed backscattering (S v ... , dB) for single ping were less than 1.0 dB with 0.35 dB and 0.78 dB at 120 kHz and 38 kHz ...

   Meeting Document : SG-ASAM-18/06 : Autor(es): X. Wang, X. Yu and X. Zhao

4. 2006 assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

   updated to take account of further catch, GLM standardised CPUE and catch-at-length information that has ... Abstract:  The ASPM assessment of the Prince Edward Islands toothfish resource by Brandão and ... 48.3 are incorporated and lead to less optimistic results. The resource is estimated to be at about 40 ... % of its average pre-exploitation level in terms of spawning biomass. It is suggested that it would be ...

   Meeting Document : WG-FSA-06/58 : Autor(es): A. Brandão and D.S. Butterworth (South Africa)

5. Stock assessment of D. eleginoides in Subarea 48.3 using dynamic production models

   estimates by years of fishing. Both models showed that the D. eleginoides stock status at the initial period ... of intensive fishery was at the level of 22-24 thousand tons. In 1989-1990 stock size increased (to ... in subarea 48.3. This type of the models differ from the models currently used by CCAMLR Working ... mortality, age selectivity, recruitment estimates, mean weight at age) In the calculations with DPM (with ...

   Meeting Document : WG-FSA-02/78 : Autor(es): P.S. Gasiukov and R.S. Dorovskich (Russia)

6. Identification of Amblyraja species in the longline fishery in Subarea 48.3 – CCAMLR

   A.georgiana. Male A. sp.anon attain 50% maturity at a total length of 97cm, 13 cm greater than the length at ... captures of A.sp.anon were found at depths >1000m, where 85% of A.georgiana were caught in depths ... 50% maturity for A.georgiana. Comparisons of colour and patternation were found to be consistent ... proportionally longer claspers to total length (2.77% difference between averages) than male A.sp.anon. 94% of ...

   Meeting Document : WG-FSA-02/54 : Autor(es): M. Endicott (United Kingdom), L.J.V. Compagno (South Africa) and D.J. Agnew (United Kingdom)

7. Report of the Steering Committee for the WG-EMM Workshop on Plausible Ecosystem Models for Testing Approaches to Krill Management

   workshop at WG-EMM 2004. The overarching Terms of Reference are (i) to review the approaches used to model ... assessment systems. As agreed at WG-EMM in 2003, intersessional activities have included (i) provision of ... in the development of models at the workshop, (ii) a review of relevant literature and information on ... Abstract:  This paper reports on the intersessional activities of the Steering Committee of the ...

   Meeting Document : WG-EMM-04/25

8. Age Determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula Subarea (Subarea 48.1)

   Abstract:  Age determination was carried out on Notothenia gibberifrons specimens collected at two ... localities of the South Shetland Islands (Low I. and Potter Cove, 25 De Mayo I./King George). Samples were ... composed by small and medium size fishes (14.8-38 cm of total length). Otolith and scale readings have been ... compared in 19 Potter specimens. In some of them scale readings resulted one year greater. This could arise ...

   Meeting Document : WG-FSA-88/15 : Autor(es): E. Barrera-Oro (Argentina)

9. Synopsis of CEMP and non-CEMP predator parameters from Admiralty Bay and Cape Shirreff, South Shetland Islands, Antarctica: their relationships to krill abundance and ice cover, 1978–2003

   Abstract:  A suite of CEMP and non-CEMP parameters collected at Admiralty Bay and Cape Shirreff ... K.Reid for similar analyses at South Georgia. The tabular data include: 1. Table 1. A list of the penguin ... , South Shetland Islands, Antarctica were analysed to assess the characteristics of the individual ... . Results of the analyses are presented in a series of 6 Tables, following the outline of a Draft paper by ...

   Meeting Document : WG-EMM-03/61 : Autor(es): W.Z. Trivelpiece (USA), K. Salwicka (Poland) and S.G. Trivelpiece (USA)

10. Distribution and ecology of Chaenocephalus aceratus (Channichthyidae) around South Georgia and Shag Rocks (Southern Ocean).

    Rock shelves although few fish were caught at Shag Rocks. Analysis of length frequency data indicated ... Abstract:  Chaenocephalus aceratus (Family Channicthyidae) is one of the dominant species of ... that growth was fast in the first five years with males and females attaining lengths at first spawning ... of 440 mm TL and 520 mm TL. The diet was comprised of fish and crustaceans, with an ontogenetic shift ...

    Meeting Document : WG-FSA-07/P5 : Autor(es): W.D.K Reid, S. Clarke, M.A. Collins and M. Belchier. (Polar Biol., 30 (12): 1523–1533 (2007))

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