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1. Estimating fishing gear selectivity for Patagonian toothfish (Dissostichus eleginoides) caught by trawlers on the Heard Island plateau region (Division 58.5.2) using trawl and longline length frequency data and forward-calculated continuation ratios

   random length frequency (LF) data collected from each of trawlers and longliners for fishing seasons 2003 ... -2005 the upper arm of the gear selectivity function for trawlers is estimated using a two-stage process ... . In the first stage I estimate a parameter for each 40 mm wide length bin from the fit of a binomial ... generalised linear mixed model (GLMM) to the number of fish in the bin using a logit link function and ...

   Meeting Document : WG-FSA-05/65 : Autor(es): S.G. Candy (Australia)

2. Información sobre la pesca ilegal en el Área estadística 58 Evaluación de la pesca ilegal en aguas francesas alrededor de las islas Kerguelén y Crozet Informe de las observaciones e inspecciones realizadas en el Área de la CCRVMA Temporada 2011/2012 (1 julio 2011 – 15 julio 2012)

   Abstract:  This document summarises French observations of illegal fishing for the past year ... Crozet EEZs are now protected, as shown in the report of the POKER 2 fisheries research survey (2010 ... five weeks are observed on the edges of the continental shelves outside the French EEZs. This season ... the more scattered seamounts (Ob and Lena), and sometimes at the boundaries of the Crozet, Kerguelen ...

   Meeting Document : CCAMLR-XXXI/35 : Autor(es): Délégation française

3. Phase-randomisation in an integrated assessment model for Antarctic krill

   Abstract:  An integrated model was configured to estimate eighteen different subsets of 119 total ... parameters in alternative configurations of a model assessing the status and productivity of Antarctic krill ... 48.1, a statistical reporting area used by the Commission for the Conservation of Antarctic Marine ... Living Resources (CCAMLR). The number of estimated parameters was gradually increased across model ...

   Meeting Document : WG-SAM-17/31 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss

4. Seasonal relationships in biological parameters and in spatial distribution in the euphausiid populations sampled during the XIIIth and XVth expedition to the Ross Sea

   Abstract:  This report summarises the results of krill studies from a large-scale surveys of the ... samples data on Euphasiids were analysed at the aim of: 1) obtain a general picture of interannual and ... seasonal variability of distribution pattern and abundance of Euphausia superba and Euphausia ... of E. superba and its possible spatial and temporal variations across the investigated area. The ...

   Meeting Document : WG-EMM-01/62 : Autor(es): M. Azzali, J. Kalinowski, G. Lanciani, I. Leonori and A. Sala (Italy)

5. Improvements to the multiple-frequency method for in situ target strength measurements

   to improve the accuracy and precision of in-situ target strength (TS) measurements using split-beam ... improves the rejection of unresolvable and constructively interfering target multiples by combining ... synchronized signals from two or more adjacent split-beam transducers of different frequencies which are not ... integer multiples of each other. In this study, the method itself was improved by: 1) optimizing the ...

   Meeting Document : WG-EMM-99/38 : Autor(es): D.A. Demer (USA) and M.A. Soule (South Africa)

6. UPDATED BIOLOGICAL PARAMETERS FOR THE ANTARCTIC STARRY SKATE, AMBLYRAJA GEORGIANA, FROM THE ROSS SEA

   Abstract:  Photographs of skates taken by observers on New Zealand toothfish longliners in the ... Ross Sea were identified to species. Sample sizes were small, but indicated a ratio of 10.75:1 of ... of tagged skates. Biological parameters were reviewed and updated for Amblyraja georgiana. Revised ... relationships differ significantly. Better estimates of median length at maturity were made possible through a ...

   Meeting Document : WG-FSA-08/20 : Autor(es): M.P. Francis and S. Mormede (New Zealand)

7. Climate change and zooplankton dominance in the Antarctic marine ecosystem: implications for the food web

   Abstract:  There is a growing body of evidence that the climate of the Antarctic Peninsula region ... has been warming over the past 40 years with an associated decreased frequency of winters with ... function of the Antarctic marine ecosystem. In the Antarctic Peninsula region winter sea-ice coverage is a ... major factor regulating recruitment and population size of Antarctic krill (Euphausia superba) and ...

   Meeting Document : WG-EMM-96/21 : Autor(es): Siegel, V., Fraser, W., Trivelpiece, S., Holm-Hansen, O., Loeb, V., Hewitt, R., Trivelpiece, W.

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

   genetic study investigated the population structure of this species, but used mitochondrial DNA sequencing ... and was unable to discriminate between hypotheses of panmixia, with occasional fluctuations of gene ... investigate the population structure of P. antarcticum along the Antarctic Peninsula (AP) shelf, a region of ... Antarctica highly impacted by regional warming. We found a single gene pool and an absence of inter-annual ...

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

9. Finfish distribution and abundance in Subareas 48.1 and 48.2, 2016–2018. Research proposal for the second year

   Abstract:  According to the experience gained in the first phase of the research and observations ... made by WG-SAM-16, a new proposal is provided to determine the distribution and abundance of fish in ... of Elephant Island and north of South Orkney Islands, between 100 and 500 m of depth (Depth strata ... daily stages of operation, performed with a midwater trawl, with six random spatially distributed hauls ...

   Meeting Document : WG-FSA-16/31 : Autor(es): Delegation of Chile

10. Using additional information for generalised yield model

    Abstract:  It has been suggested a method of GY-model adjustment to the additional data of ... observations represented as abundance indices. Catch per effort values or results of inventory surveys can ... serve as such indices. Adjustment basic concept is a selection of those GY-models from realization sets ... a certain function of which runs through the set of points defined by confidence intervals of ...

    Meeting Document : WG-FSA-99/60 : Autor(es): P.S. Gasiukov (Russia)

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