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1. LENGTH AND AGE AT SPAWNING OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI IN THE ROSS SEA

   ) by length. Evidence of skip spawning by females results in a right-shifted ogive, increasing the ... slope with the age distribution in the northern area and the lack of evidence for skip spawning in the ... ogive is biased right (older) by excluding the mature fish in the north depends on the proportion of the ... male Antarctic toothfish Dissostichus mawsoni from fish sampled in the Ross Sea spanning the 2000-2009 ...

   Meeting Document : WG-FSA-09/37 : Autor(es): S.J. Parker and P.J. Grimes (New Zealand)

2. Indexing maturation of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region

   and 88.2 have provided more than a decade of observations to aid in understanding the life history and ... the slope or return to the slope in early spring. The absence of high condition fish in the north ... Abstract:  The longline fisheries for Antarctic toothfish (Dissostichus mawsoni) in subareas 88.1 ... ecology of toothfish. Updated spawning ogives for males and females support the currently used values ...

   Meeting Document : WG-FSA-12/40 : Autor(es): S. Parker and P. Marriott (New Zealand)

3. Towards the development of a stock assessment for Patagonian toothfish in Division 58.4.4, SSRU C on Ob and Lena Banks

   455 tonnes, and current biomass was 1 275 tonnes (87.6 % of B 0). An additional uncertainty in the ... Abstract:  Following the advice from the CCAMLR Working Group in WG-SAM in 2012, a preliminary ... assessment of stock status of D. eleginoides in SSRU C in Ob-Lena Banks was made using a CASAL catch-at ... -length model. In this preliminary assessment, the model was started in 1990 and catch, proportions at ...

   Meeting Document : WG-FSA-12/59 : Autor(es): K. Taki (Japan)

4. Predation release of Antarctic silverfish (Pleuragramma antarctica) in the Ross Sea

   predation release hypothesis. In particular, the examination of 422 Antarctic toothfish stomachs showed that ... the amount of silverfish consumed annually by Adélie penguins in this region. This result was ... increases in the number of Adélie penguins breeding in the southern Ross Sea. Mixed trophic impact (MTI ... changes in toothfish biomass and changes to the biomasses of silverfish and Adélie penguins. Essentially ...

   Meeting Document : WG-EMM-15/53 : Autor(es): M.H. Pinkerton, P. Lyver, D. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand).

5. Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1

   management of Dissostichus spp. population(s) in data- poor exploratory fisheries. During the second three ... WG-FSA in 2013 in order to maximize the expectation of tag-recapture to the extent possible under the ... Abstract:  The current season (2014/15) is the final one of the first three-season research which ... began in 2013 in data-poor fisheries. In the present report, the next three-season (2016-18) research ...

   Meeting Document : WG-FSA-15/17 : Autor(es): Delegation of Japan

6. Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2

   / fisheries management of Dissostichus spp. population(s) in data- poor exploratory fisheries. During the ... at the WG-FSA in 2013 in order to maximize the expectation of tag-recapture to the extent possible ... for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2 Approval ... Abstract:  The current season (2014/15) is the final one of the first three-season research which ...

   Meeting Document : WG-FSA-15/18 : Autor(es): Delegation of Japan

7. Revised assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005–2014

   300 m) CASAL models for stock status assessments of Dissostichus eleginoides in the research block ... released in 2012 for ELAN_len, ELAN_age and ELAN_lenOB models reflected a large number of recaptures of the ... tags released concentrated in the western area of research block. This is why the removal of 2012 tag ... release data boosted the MPD estimate of B 0 in ELAN_tag model. The selectivity of the right hand limb of ...

   Meeting Document : WG-FSA-15/22 : Autor(es): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)

8. An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07

   Abstract:  The descriptive analyses of the toothfish tagging programme carried out in Subareas ... , and 911 Patagonian toothfish released and 43 recaptured since 2001. The number of tags recaptured in ... number caught in 2006, although the nature of these recaptures suggests that assumptions of homogeneous ... provides an update of the preliminary tag-release and tag-recapture data that were presented at the July ...

   Meeting Document : WG-FSA-07/40 : Autor(es): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)

9. A possible framework in which to consider plausible models of the Antarctic marine ecosystem for evaluating krill management procedures

   limit in Area 48 that will be highly likely to achieve the objectives of the convention despite the ... uncertainties in knowledge. This will be part of the management procedure governing the krill fishery. The ... procedures in a simulation framework, using plausible models of the Antarctic marine ecosystem. This paper ... aspects of model development. Part 1 outlines the issues to consider in assessing the requirements of ...

   Meeting Document : WG-EMM-04/24 : Autor(es): A. Constable (Australia)

10. Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys

    around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ... , probably as a result of more variable hydrographic conditions. About 50% of the catch in Subarea 48.1 from ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ... and 1988 75% of the catch in Subarea 48.2 between December and March was taken within 80 km of ...

    Meeting Document : WG-KRILL-92/19 : Autor(es): D.J. Agnew (Secretariat)

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