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1. Using preferred habitat models for chinstrap penguins (Pygoscelis antarctica) to help improve krill fisheries management during the penguin breeding season

   two simple variables; the distance to the colony and a measure of the direction of travel towards the ... find that the chinstrap penguins breeding on the South Orkney Islands use areas which overlap with ... frequently used krill fishing areas. If the krill fisheries continue to expand, then impacts on the penguin ... investigate the effects of prey depletion on predator populations, and to ensure that management is addressed ...

   Meeting Document : WG-EMM-17/33 : Autor(es): V. Warwick-Evans, N. Ratcliffe, H.L. Clewlow, L. Ireland, A. Lowther, F. Manco and P.N. Trathan

2. The choice of procedure for deciding when to close fisheries regulated by CCAMLR: a simulation model

   Paper Title:  The choice of procedure for deciding when to close fisheries regulated by CCAMLR: a ... simulation model Abstract / Description:  The methods, described in CCAMLR Conservation Measures, used for ... deciding the closure date for fisheries monitored by the Secretariat of CCAMLR, have been difficult to ... fluctuating random catch histories are simulated and the performance of four models for making closure ... when the TAC has been taken. There have now been two seasons for which the Secretariat has had to ... reporting period. 2.1 Catch Rates Catch histories for fisheries were modelled on a daily basis in order ... AC. Two models were used: • Type I catch - random catch rates where C is the catch rate for one ... catch rates will always contain an element of uncertainty, for some methods more than others. The more ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 81–97 : Autor(es): Agnew, D.J.

3. Estimates of abundance of Dissostichus eleginoides and Champsocephalus gunnari from the random stratified trawl survey in the waters surrounding Heard Island in Division 58.5.2 for 2019

   the past 10 years. Biomass estimates for the managed by-catch species C. rhinoceratus and Macrourus ... last 4 years. The 2019 biomass estimates for each of the three Bathyraja spp. (skates) were the highest ... in the last 10 years. Length measurements and sex were taken for nearly 15 000 fish and for more than ... year. Catches of skates were similar to those of the last three years, which have been higher than ...

   Meeting Document : WG-FSA-2019/03 : Autor(es): G.B. Nowara, T.D. Lamb and P. Ziegler

4. Proposal for a longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4

   distributions of benthic bycatch species. This proposal includes a three-year data collection and two-year data ... Abstract:  This paper presents a proposal for a longline survey connecting the currently ... Dissostichus sp population structures in this region, and improving available data on bathymetry and associated ... analysis plan towards the development of a stock hypothesis for the northern regions of 48.2 and southern ...

   Meeting Document : WG-SAM-16/33 : Autor(es): Delegation of the United Kingdom

5. Proposal for a longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4

   distributions of benthic bycatch species. This proposal includes a three-year data collection and two-year data ... Abstract:  This paper presents a proposal for a longline survey connecting the currently ... Dissostichus sp population structures in this region, and improving available data on bathymetry and associated ... analysis plan towards the development of a stock hypothesis for the eastern regions of 48.2 and southern ...

   Meeting Document : WG-FSA-16/40 Rev. 1 : Autor(es): Delegation of the United Kingdom

6. Surface areas of seabed within the 500 m isobath for regions within the South Shetland Islands (Subarea 48.1)

   Abstract:  Bathymetric maps of two major areas within the South Shetland Islands were generated ... integrated data sets, areas of seabed within the 500 m isobath for six levels of depth strata (0-50 m, 51 ... - 100 m, 101-200 m, 201-300 m, 301-400m, 401-500 m) were computed. Areas were calculated based on true ... III (USA) Title:  Surface areas of seabed within the 500 m isobath for regions within the South ...

   Meeting Document : WG-FSA-98/14 : Autor(es): C.D. Jones, S.N. Sexton and R.E. Cosgrove III (USA)

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

   -ASAM-2017 except that the dB difference window of Sv 120 kHz-Sv 38kHz is set 0 to 20 dB. And the two ... difference tests (Kruskal-Wallis tests) to examine the validation of the developed swarm-based method for ... and grid-based method show non-significant difference and significant linear relationship for all the ... method could be of good agreement. During the meeting, the subgroup suggested further analysis on swam ...

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

8. Age-length key for Champsocephalus gunnari from Subarea 48.3; Holmberg survey, February 1995

   Abstract:  An age-length key was prepared for Champsocephalus gunnari from the Subarea 48.3, based ... length at age was found for age groups one and two. Mean lengths at age reported here for South Georgia ... on the readings of otoliths collected during the R/V Holmberg survey in February 1995. Small and ... -length key for Champsocephalus gunnari from Subarea 48.3; Holmberg survey, February 1995 Approval ...

   Meeting Document : WG-FSA-95/37 : Autor(es): Casaux, R., Marschoff, E., Barrera-Oro, E.

9. Streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources (SC-CAMLR)

   through the year: a two week period for workshops, a three week period for the Scientific Committee and ... Abstract:  In recent years, the Scientific Committee has been dealing with a great diversity of ... important issues for which the Commission was expecting advice. The current structure of the Working Groups ... has struggled to address these issues efficiently, leading to expanded time taken on intersessional ...

   Meeting Document : WG-EMM-15/59 : Autor(es): G. Watters (USA), A. Constable and D. Welsford (Australia)

10. Integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2)

    of a range of alternative fishery structures and model assumptions for year class strength (YCS) on ... Abstract:  This paper presents an updated assessment for Patagonian toothfish (Dissostichus ... information on YCS variation resulted in an SSB status of 0.58 in 2013, but was considered to be less ... realistic. The impact of altering the sub-fishery structure for trawl on model estimates was relatively ...

    Meeting Document : WG-FSA-13/24 : Autor(es): P. Ziegler, S. Candy and D. Welsford (Australia)

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