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1. Trends in entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at South Georgia

   of any material unavoidably jettisoned which could form collars to entangle seals. Five subsequent years ... been halved in recent years. However, the South Georgia fur seal population has approximately doubled ... in the same period, so that the overall total of animals entangled may even have increased. Nevertheless ... bands and the fact that all such bands washed ashore over the last 2 years have been cut, does suggest ...

   Meeting Document : SC-CAMLR-XV/BG/03 : Author(s): Delegation of the United Kingdom

2. Measures to avoid bias in abundance estimates of Dissostichus spp. based on tag-recapture data

   Abstract:  Using the simplest form of an abundance estimator using tag-recapture data, the Lincoln ... difficulty in accurately estimating key parameters, and consequently introduce bias into an abundance ... against this bias, or to account for their effects in assessment models. In nearly all cases, examples of ... depredation rates are a priority for new tagging programs and tag-based assessments. Due to the complexity of ...

   Meeting Document : WG-SAM-12/23 : Author(s): D.C. Welsford and P.E. Ziegler (Australia)

3. Progress report on the Australian Fisheries Research and Development Corporation project to develop robust assessment methods and harvest strategies for spatially complex, multi-jurisdictional toothfish fisheries in the Southern Ocean

   Abstract:  This paper provides an update on the ongoing FRDC-funded research project to develop ... robust assessment methods and harvest strategies for spatially complex, multi-jurisdictional toothfish ... distribution, abundance and movement of toothfish on the Kerguelen Plateau, to enable complementary harvest ... strategies to be developed for the Australian and French fisheries, as well as develop tools that can be used ...

   Meeting Document : WG-SAM-15/37 : Author(s): P. Burch, C. Péron, D. Welsford, P. Ziegler, T. Lamb, T. Robertson (Australia), G. Duhamel, N. Gasco, P. Pruvost, C. Chazeau and R. Sinègre (France)

4. On assessing the size of the humped rockcod stock (Notothenia gibberifrons) in Subarea 48.3

   Abstract:  An adaptive approach was used to assess the Notothenia gibberifrons stock in Area 48.3 ... imperative to estimate the catchability coefficient. This parameter was equal to 0.326 to 0.635. An adaptive ... logarithms of observed and calculated biomass indices and resulted in an estimate of from 21.5 to 42.1 ... thousand tonnes for N. gibberifrons biomass in the 1989/90 season. It is thus possible to suggest a TAC of ...

   Meeting Document : WG-FSA-91/26 : Author(s): P.S. Gasiukov (USSR)

5. Guidelines for the preparation of hydroacoustic survey reports on krill

   . ITocKonbKY rrpH rrpOBe~eHHH aXOCbeMKH rH~onOKaTOp paooTan B peJKHMe "0cnaoneHHe 20 ~B", aneKTpoaKYC- TH ... . KpaTKHlt ,D;HeBHHK peltca 19/X1 1980 20-29/X1 30/X1 31/X1 1980-10/ 1981 BbIXO,D; H3 CeBaCTOnOJIR ... C Hcnonb30BaHHeM r~poaKYC­ TH'IeCKHX nOH6opOB H nO~BO~Horo annapaTa ICeBep-2". BH60p onTHManbHoro pelKHMa pa ... H3 aBTOHOMHoro annapaTa "CeBep-2" rrOKa3anH, ~TO KPHnD 06pa30BHBan CTaH, B KOTOpHX OC06H ... Paper Title:  Guidelines for the preparation of hydroacoustic survey reports on krill Abstract ... requirements for the preparation of reports of echometric surveys. An example is provided of the preparation of ... / Description:  The proposed guidelines provide an opportunity to perform comparative analyses and checks of ... surveys. The unification of echometric survey data is aimed at increasing the effectiveness of research on ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 165-193 : Author(s): Kalikhman, I.L.

6. Experimental evaluation of the effectiveness of weighting regimes in reducing seabird by-catch in the longline toothfish fishery around South Georgia

   . Two experiments were conducted: (i) a comparison of the use of one stone at each attachment site ... (single weight) and the other had the two-stone setup (double weights). In the second experiment one ... with the vessel in large numbers. Typically, one or two birds of this species were present during setting ... oiseaux est marquee lorsque l'on utilise des poids de 8,5 kg par rapport aux poids de 4,25 kg, mais on ne ... effects of different weighting regimes on the incidental mortality of birds caught on longlines fishing ... for toothfish (Dissostichus spp.). Three regimes were examined, with weights of 4.25, 8.5 and 12.75 kg ... attached at 40 m intervals on a Spanish-rigged longline. There was a significant reduction in bird ... intervals should be used. Results suggested that seabird by-catch on lines using effective weighting regimes ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 119–131 : Author(s): Agnew, D.J., A.D. Black, J.P. Croxall and G.B. Parkes

7. An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island

   tonnes for the plateau and 18 tonnes for Shell Bank. An assessment based on the results of a survey ... populations on the Heard plateau are sufficiently different from those on Shell Bank for them to be managed ... conducted at the end of the 1997 fishing season would allow for a catch limit on the Heard plateau of 900 ... on the data collected during the surveys, including growth curves, natural mortality, ages and sizes ...

   Meeting Document : WG-FSA-97/29 : Author(s): de la Mare, W.K., Constable, A., Williams, R.

8. Is population structure of Patagonian toothfish (Dissostichus eleginoides) determined by the Antarctic Circumpolar Current?

   Islands are segregated from toothfish caught in the other two management areas, but that toothfish stocks ... ; and that consequently, changes in toothfish population dynamics within one management area may have broader impacts ... from toothfish caught in the other two management areas, but that toothfish stocks at South Georgia ... , changes in toothfish population dynamics within one management area may have broader impacts through ...

   Meeting Document : WG-FSA-03/84 : Author(s): J.R. Ashford, C.M. Jones, E. Hofmann (USA), I. Everson (United Kingdom) and G. Duhamel (France)

9. Considerations on the design and evaluation of surveys for estimating recruitment of Patagonian toothfish (Dissostichus eleginoides) with preliminary outcomes for the Heard Island plateau region (Division 58.5.2)

   levels of confidence in the estimates of abundance for all but the youngest year class. It is recommended ... in the estimates of abundance for all but the youngest year class. It is recommended that the implications ...

   Meeting Document : WG-FSA-SAM-04/19 : Author(s): Candy, S., Constable, A.J., Davies, C.R.

10. Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1

    over the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January ... –February because of ice. Ice cover varied greatly between years, with the untrawlable area ranging from 31 ... % in 2002 to 89% in 2002. Less than 10% of the potential trawl survey area was fishable in all three years ... the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January–February ...

    Meeting Document : WG-FSA-SAM-04/07 : Author(s): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.

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