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1. Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?

   Abstract:  Pleuragramma antarcticum is the only Antarctic notothenioid characterized by a complete ... pelagic life cycle and plays a major trophic role in the coastal Antarctic marine ecosystem. A previous ... genetic study investigated the population structure of this species, but used mitochondrial DNA sequencing ... pools, and population structure. In the present study, we used 16 EST-linked microsatellites to ...

   Meeting Document : WG-FSA-13/67 : Autor(es): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)

2. Development of a spatially-explicit minimum realistic model for Antarctic toothfish (Dissostichus mawsoni) and its main prey (Macrouridae and Channichthyidae) in the Ross Sea

   Abstract:  To explore the potential effects of the toothfish fishery on the population dynamics of ... spatially explicit model using a predator-prey suitability model for the Ross Sea Region. We model the age ... predation mortality (M2), in addition to fishing mortality (F) on all three species. The model suggests that ... the predation release caused by the fishery effect on toothfish abundance is greater than the direct ...

   Meeting Document : WG-EMM-14/51 : Autor(es): S. Mormede, M. Pinkerton, A. Dunn, S. Hanchet and S. Parker (New Zealand)

3. Draft Research and Monitoring Plan for the South Orkney Islands Southern Shelf (MPA Planning Domain 1, Subarea 48.2)

   monitoring activities that will help inform and support the management of the South Orkney Islands Southern ... research consistent with the objectives of the MPA, and monitoring that will help evaluate the extent to ... which these objectives are being achieved. We also encourage the initiation of other research that is ... consistent with the objectives of the MPA. In 2013, a preliminary draft MPA Report was developed for the ...

   Meeting Document : WG-EMM-14/24 : Autor(es): Delegation of the European Union

4. Analysis of the toothfish fishery indices in Subareas 88.1 and 88.2 when using different types of longline gears

   Abstract:  The indices of exploratory toothfish fishery in the Subareas 881 and 88.2   for the ... period of 2010-2016 are considered. Taking into account the different number of hooks at longlines sets ... used at the fishery, the catch indices were normalized to 1000 hooks.  The effect of the gear types ... (autoline, spanish, trotline) on the observed spatial-temporal variability of CPUE toothfish   (kg/1000 ...

   Meeting Document : WG-SAM-17/23 : Autor(es): S. Kasatkina

5. Continuation of multi-Member research on the Dissostichus eleginoides exploratory fishery in 2017/18 in Division 58.4.3a by France and Japan

   Abstract:  In Division 58.4.3a, since 2012, research fishing has been conducted in the research ... block by two vessels using longline: “ Shinsei Maru No. 3 ” (Japan) and the “ Saint André ” (France ... ). The catch limit for Dissostichus spp. is 32 tonnes in 2014/2015 and the total reported catch up was ... 16.3 tonnes. For the season (2015/16), the catch limit was unchanged (32 tonnes) but no catch up was ...

   Meeting Document : WG-FSA-17/55 : Autor(es): Delegations of France and Japan

6. Analysis of the toothfish fishery indices in Subareas 88.1 and 88.2 when using different types of longline gears

   Abstract:  The indices of exploratory toothfish fishery in the Subareas 881 and 88.2 for the ... period of 2010-2016 are considered. Taking into account the different number of hooks at longlines sets ... used at the fishery, the catch indices were normalized to 1000 hooks.  The effect of the gear types ... (autoline, spanish, trotline) on the observed spatial-temporal variability of CPUE toothfish (kg/1000 hooks ...

   Meeting Document : WG-FSA-17/56 : Autor(es): S. Kasatkina

7. Expert Workshop on Pelagic Spatial Planning for the eastern subantarctic region (Domains 4, 5 and 6)

   Abstract:  The “Expert Workshop on Pelagic Spatial Planning for the eastern subantarctic region ... (Domains 4, 5 and 6)” was held in Cape Town (South Africa) between 26th and 30th August 2019. The workshop ... the Planning Domains using geographic, biological and oceanographic features. Distributions of ... showing latitudinal patterns of communities for the pelagic species. The importance of frontal zones such ...

   Meeting Document : SC-CAMLR-38/BG/29 : Autor(es): A.B. Makhado, A. Lowther, P. Koubbi, I. Ansorge, C. Brooks, C. Cotté, R. Crawford, S. Dlulisa, F. d’Ovidio, S. Fawcet, D. Freeman, S. Grant, J. Huggett, M. Hindell, P.A. Hulley, S. Kirkman, T. Lamont, M. Lombard, M.J. Masothla, M.-A. Lea, W.C. Oosthuizen, F. Orgeret, R. Reisinger, T. Samaai, S. Sergi, K. Swadling, S. Somhlaba, A. Van de Putte, C. Von de Meden and D. Yemane

8. Revised growth and length-weight parameters for Antarctic toothfish in the Ross Sea region (881 & 882AB)

   Abstract:  We update the estimates of the growth and length-weight parameters for Antarctic ... toothfish (Dissostichus mawsoni) in the Ross Sea region (Subareas 88.1 and SSRUs 88.2AB). We present revised ... estimates of the von Bertalanffy growth curves, estimates of mean length at age using maximum likelihood ... estimation (MLE), and the length-weight relationship based on available CCAMLR SISO data collected from ...

   Meeting Document : WG-FSA-2019/11 : Autor(es): A. Dunn and S. Parker

9. Preliminary assessment of the South Georgia ray populations

   Abstract:  We modelled the ray population at South Georgia using a surplus production model ... implemented in a Bayesian framework. Catch and CPUE data were reconstructed for the time series 1985 – 2006 ... from a variety of sources, and included the consideration that since 2004 the practice of cutting rays ... off lines at the water surface should have increased survivorship of discarded rays, although this ...

   Meeting Document : WG-SAM-07/11 : Autor(es): D.J. Agnew, R. Mitchell, T. Carruthers, J. Roberts, R. Hillary and J. Pearce (United Kingdom)

10. Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season

    Abstract:  We provide an update of the Bayesian sex and age structured population stock assessment ... model for Antarctic toothfish (Dissostichus mawsoni) in the SSRU 88.2E, using revised catch, CPUE, catch ... -at-age and tag-recapture data from New Zealand and all vessels. The updated reference case resulted ... different assumption of the level of natural mortality (M=0.13 y-1), and the revised length-weight and ...

    Meeting Document : WG-FSA-06/48 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)

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