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1. A feedback approach to Ecosystem Based Management: model predictive control of the Antarctic krill fishery

   Abstract:  The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) aims ... to develop a feedback approach to aid Ecosystem Based Management (EBM) of the Antarctic krill fishery ... in the Southern Ocean. Feedback approaches in fisheries management usually include harvest control ... rules based on their predicted performance in a model of the controlled system. Here we use MPC to ...

   Meeting Document : WG-EMM-12/19 : Автор(ы): S. Hill and M. Cannon (United Kingdom)

2. Trophic interactions and population trends of killer whales (Orcinus orca) in the southern Ross Sea

   orca) are reported for the vicinity of Ross Island, Ross Sea, Antarctica, between 2002 and 2010 ... . Updating an earlier report, the frequency of sightings and the number of individuals per sighting of Ross ... coincident with a decrease in the number and size of an important prey: Antarctic toothfish (Dissostichus ... important to the whales, a relationship with potential parallels to that known between well-studied fish ...

   Meeting Document : WG-FSA-12/P03 : Автор(ы): D.G. Ainley and G. Ballard

3. Preliminary analysis of toothfish catch, CPUE, size structure and mark-recapture data from SSRUs 486A and 486G, with comments on the sustainability of different harvest levels

   in Subarea 48.6 north of 60°S (the combined SSRUs 48.6A and 48.6G). A preliminary assessment for D ... . mawsoni in Subarea 48.6 south of 60°S (the combined SSRUs 48.6B through 48.6E) is given in an Appendix. An ... proportional to the mean length at that age.  The model makes provision for IUU catches, insofar as this is ... possible given the available information.  Actual assumptions are set out in this document.  CPUE data are ...

   Meeting Document : WG-FSA-12/31 : Автор(ы): E. Thomson and M. Bergh (South Africa)

4. Further development of a spatially explicit population dynamics operating model for Antarctic toothfish in the Ross Sea region

   model for Antarctic toothfish over the entire Ross Sea region, for a medium scale spatial resolution ... (189 spatial cells) covering the Ross Sea region. The model was developed as a generalised Bayesian ... population dynamics model implemented using the Spatial Population Model software (SPM), and a single sex age ... appeared to broadly reflect the hypothesised spatial distribution of Antarctic toothfish, suggesting that ...

   Meeting Document : WG-SAM-13/35 : Автор(ы): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)

5. Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob & Lena Banks for the years 1989/1990 to 2012/13

   eleginoides in research block C in Division 58.4.4 b on the assumption of constant year class strength and no ... IUU fishing occurrence in the block. The five models are as follows: 1) catch at length model as ... parameters were not estimated in these models according to the recommendations in the last WG-FSA meeting. In ... addition, proportion mature for ages was calculated on the assumption of logistic curve fitting for the ...

   Meeting Document : WG-SAM-14/15 : Автор(ы): K. Taki (Japan)

6. Winter distribution and condition of Antarctic krill in relation to sea-ice and water column production in the South Shetland Islands during Austral Winter 2013

   stations around the South Shetland Islands during a 30 day cruise between 10 August and 9 September 2013 ... . Abundance and demographic patterns revealed that Antarctic krill were concentrated in the southern ... during the 2012 winter survey (Reiss and Jones 2013; WG-EMM 13/40) but similar in size to krill found in ... the German survey during summer in 2013 (Siegel 2013; WG-EMM 13/24). Large krill (>50mm), although ...

   Meeting Document : WG-EMM-14/13 : Автор(ы): C.S. Reiss, J. Walsh, K. Dietrich and J.A. Santora (USA)

7. Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.3a

   Abstract:  In 2011/2012, the Saint André conducted its first exploratory fishery for Dissostichus ... spp. in division 58.4.3a. France notified its wish to continue this exploratory fishery over the ... account the remarks made during the WG-SAM 2014. The objective is to progress on modelling tools and to ... improve the estimation of current biomass. The stock size in division 58.4.3a was estimated during WG-FSA ...

   Meeting Document : WG-FSA-14/05 : Автор(ы): Delegation of France

8. Potential modelling structures for a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region

   Abstract:  Two-area population models for Antarctic toothfish in the Amundsen Sea Region were ... developed further as current single area models did not fully explain the patterns in the observed data on ... tag recaptures and age composition. Although the hypothesised stock structure spans SSRUs 88.2C–H ... in 2014/15 are expected to better inform the assessment of the entire stock including SSRUs 88.2C–G ...

   Meeting Document : WG-SAM-15/49 : Автор(ы): S. Mormede, S.J. Parker, A. Dunn and S.M. Hanchet (New Zealand)

9. Acoustic monitoring and evaluation of krill in the Antarctic ecosystem Bransfield Strait and around Elephant Island during ANTAR XXI and XXII, aboard RV Humboldt, Peru

   Abstract:  Monitoring and hydroacoustic assessment of the distribution and biomass of krill ... (Euphausia superba) was held on board the BIC Humboldt during scientific campaigns Peru to Antarctica in the ... austral summer: Antar XXI (15 to 22 February 2013) and Antar XXII (22 to 31 January 2014). The areas ... ; ANTAR XXII: 21 070.62 nm2 with 17 transects).The SIMRAD EK60 scientific echosounder used for ...

   Meeting Document : WG-EMM-16/76 : Автор(ы): R. Cornejo, M. Flores and J. Zuzunaga

10. New Zealand research voyages to the Ross Sea region in 2018 and 2019

    to the Ross Sea region, and gives notice of a New Zealand 2019 research voyage to the Ross Sea region ... . The Ross Sea Environment and Ecosystem Voyage 2018 (TAN1802), took place from 9 February to 21 March ... 2018, departing from and returning to Wellington, New Zealand. Science objectives for the voyage were ... aligned with the Ross Sea region Marine Protected Area Research and Monitoring Plan, under New Zealand’s ...

    Meeting Document : WG-EMM-18/02 : Автор(ы): D. Bowden, R. O’Driscoll and M.H. Pinkerton

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