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1. Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2005/06 season

   entirely due to the impact of the catch-at-age data from the shelf fishery. Parameterising the model to ... Abstract:  We provide an update of the Bayesian sex and age structured population stock assessment ... ), using revised catch, CPUE, catch-at-age and tag-recapture data from New Zealand vessels. The updated ... reference case resulted in a much higher estimate of initial biomass, though this appeared to be almost ...

   Meeting Document : WG-FSA-06/60 : Autor(es): A. Dunn and S.M Hanchet (New Zealand)

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

   eleginoides) at the Heard and the McDonald Islands (Division 58.5.2) with data until the start of August 2013 ... of a range of alternative fishery structures and model assumptions for year class strength (YCS) on ... of the longline hauls into two sub-fisheries that were depth-stratified but not regionally-explicit ... evaluated scenarios produced similar spawning stock biomass (SSB) patterns and estimates of current status ...

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

3. Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region for the years 1997–98 to 2014–15

   Abstract:  We provide an update of the Bayesian sex and age structured population stock assessment ... ), using catch, catch-at-age, and tag-recapture data from 1997–98 to 2014–15 and including the results from ... suggesting that recent tag-recapture and proportion-at-age observations were consistent with previous ... observations. Sensitivity runs showed that the results were relatively insensitive to the use of logistic ...

   Meeting Document : WG-FSA-15/38 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

4. Assessment models for Patagonian toothfish in Division 58.4.4, SRU C on Ob and Lena Banks for the years 1989/90 to 2012/13

   Abstract:  I revised the CASAL catch-at-length models for stock status assessments of Dissostichus ... ) instead of separated value for each year, 2)I calculated effective sample size for the proportions-at ... /21), and a combined value of over-dispersions were used for all tag-release years (2008 and 2010‒12 ... expected proportions, 3)I changed the tagging mortality rate estimate of 0.1 instead of 0.2 because ...

   Meeting Document : WG-FSA-13/35 : Autor(es): K. Taki (Japan)

5. By-catch in Australian fisheries in Divisions 58.5.2, 58.4.2 and 58.4.3 during the 2002/03 and 2003/04 fishing seasons

   58.5.2, 58.4.2 and 58.4.3, with estimates of total removals by fishing ground for the 2002/2003 and 2003 ... /2004 seasons. Bycatch in the trawl fisheries was low, approximately 1 to 2% of the total catch (target ... plus bycatch). Bycatch in the longline fisheries was higher, ranging from 8% to 14% of the total catch ... recapture, even after extended periods at liberty. The distances travelled ranged between 0.2 to 7 nm with ...

   Meeting Document : WG-FSA-04/68 : Autor(es): E. van Wijk and R. Williams (Australia)

6. Research plan for the exploratory longline fishery for Dissostichus spp. in 2016/17 in Division 58.4.3a by France and Japan

   . The catch limit should remain unchanged at 32 tonnes for 2016/17 to maximize the expectation of tag ... 58.4.3a was estimated with Chapman method using “tagr” Package and single population approach at 603 ... tonnes. The developing CASAL model has to assess stock biomass with reliable estimates of IUU removals ... -recapture and while a CASAL integrated stock assessment model is being developed. Author(s):  Delegation of ...

   Meeting Document : WG-FSA-16/55 : Autor(es): Delegation of France and Japan

7. Revised research plan for toothfish in Divisions 58.4.4 a and 58.4.4b by Shinsei maru No. 3 in 2012/13

   and C was calculated as 86 tonnes using Lincoln-Petersen and 54 tonnes using CPUE comparison at 5 % of ... aimed the establishment of CASAL catch-at-age model for this Division by 2016/17. Author(s):  Delegation ... 2011/12 fishing season with the aims of providing the data required for assessments of the population ... structure, size, movement and growth of Dissostichus spp. in the centred area of Division 58.4.4 a & b ...

   Meeting Document : WG-FSA-12/58 Rev. 1 : Autor(es): Delegation of Japan

8. Workshop Report – The Ross Sea: Science, Policy and the Public in a Pristine Marine Ecosystemt

   % of the Southern Ocean, which is inconsequential, yet its attributes, as identified in this workshop ... Ecologically and Biologically Significant Areas. Information revealed at the workshop indicated that the Ross ... Lakes, Lake Baikal); on the basis of projections made from current models in the IPCC array, it likely ... will be the last stretch of ocean on Earth, perhaps within the current century, that will embrace a ...

   Meeting Document : WG-EMM-09/14 : Autor(es): J. Weller and D.G. Ainley (USA)

9. An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL

   using CASAL and demonstrates that all of the data available for assessments, including surveys, fishery ... catch-at-length data, standardised catch-per-unit-effort (CPUE) series for trawl grounds, and length ... is consistent with the problems discussed of the potential bias of a single-area model in trying to ... included in the assessment of D. eleginoides in Division 58.5.2 until the spatial structure of the mark ...

   Meeting Document : WG-FSA-06/64 : Autor(es): A. Constable, S. Candy, T. Lamb and I. Ball (Australia)

10. Contrasting population changes in sympatric penguin species in association with climate warming

    population changes between species at different study sites complicate the understanding of causal processes ... demonstrate remarkable population responses to regional warming. However, inconsistencies in the direction of ... . Here, we show that at the South Orkney Islands where the three species breed sympatrically, the less ... population decreases in the three penguin species. With the loss of sea ice, Adélie penguins were less ...

    Meeting Document : WG-EMM-06/P3 : Autor(es): J. Forcada, P.N. Trathan, K. Reid, E.J. Murphy and J.P. Croxall (United Kingdom)

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