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1. 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

2. 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

3. 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)

4. 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)

5. Pilot test of techniques to mitigate seabird interactions with catcher processor vessels in the Bering Sea pollock trawl fishery: final report

   vessels operating the Bering Sea fishery for pollock (Theragra chalcogramma) and that are practical and ... the netsounde cable (3rd wire). Third wire mitigation techniques included pulling the third wire as ... close as possible to the water at the stern with a snatch block, paired streamer lines and various ... deterrents attached directly to the third wire (3rd wire scarers). Warp deterrents included a boom array or a ...

   Meeting Document : WG-FSA-05/37 : Autor(es): E.F. Melvin, K.S. Dietrich and T. Thomas (USA)

6. Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia

   Abstract:  This paper investigates the influence of mixing of fish, and the uneven distribution of ... tag placements and recapture effort, on bias in the Petersen estimate. It does so by constructing a ... linear model of the South Georgia toothfish fishery, simulating fish movements within this system and ... overlaying various combinations of tagging and recapture effort to investigate bias. The fishable grounds ...

   Meeting Document : WG-FSA-SAM-05/6 Rev. 1 : Autor(es): D.J. Agnew, G.P. Kirkwood, J. Pearce and J. Clark (United Kingdom)

7. Ecosystem modelling for the Antarctic krill fishery

   the Antarctic ecosystem. This species serves as prey for many organisms in the ecosystem and has also ... been the target of an small industrial fishery since the mid 1970s. New quotas have recently been set ... but there is concern that the reduction in krill biomass due tome fishery may have impacts on other ... krill predators such as penguins, seals and whales. In order to evaluate the effects of krill fishing on ...

   Meeting Document : WG-EMM-01/65 : Autor(es): T. Antezana, J. Cornejo, E. Bredesen, P. Faundez (Chile), A.W. Trites and T. Pitcher (Canada)

8. Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (January–February 2000)

   Abstract:  Net samples data from the 15th Italian Antarctic Oceanographic Cruise (Jan-Feb 2000 ... ) were analysed to obtain a general picture of the summer distribution pattern, abundance and demography ... of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... used to collect zooplankton and fish larvae at 63 stations. The net was deployed normally as a standard ...

   Meeting Document : WG-EMM-00/38 : Autor(es): M. Azzali, A. Sala and G. Brancato (Italy)

9. Proposal for a CCAMLR sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea

   Abstract:  The exploratory fishery for Dissostichus spp. has now been operating for 14 years in ... Subarea 88.1 and for nine years in Subarea 88.2. Associated research has led to an assessment of the ... fisheries potential yield, but a source of ongoing uncertainty in the stock assessment concerns recruitment ... time from the fishery. At its 2010 meeting, the Scientific Committee agreed that a time series of ...

   Meeting Document : WG-SAM-11/16 : Autor(es): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)

10. ADDING CATCH AT AGE AND SURVEY DATA TO THE 48.3 TOOTHFISH CASAL ASSESSMENT

    Abstract:  The catch-at-age based CASAL model for toothfish in Subarea 48.3, which was presented ... in 2007, is developed and extended here to include survey data. Additional adjustments to the model ... suggested by WG-FSA-2007 are implemented. Fits to the survey length frequencies are good for recent surveys ... but in the past some cohorts have been missed by the survey. Fits to the survey CPUE are generally not ...

    Meeting Document : WG-SAM-09/13 : Autor(es): D.J. Agnew and M. Belchier (United Kingdom)

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