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1. 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-FSA 2013. The objective is to progress on modelling tools and to ... improve the estimation of current biomass. An update of the assessment of Dissostichus eleginoides using a ...

   Meeting Document : WG-SAM-14/17 : Автор(ы): Delegation of France

2. Towards the development of an assessment of stock abundance for Subarea 88.2 SSRUs 88.2C–G – a discussion paper

   Abstract:  This paper frames a discussion for improving the assessment of toothfish abundance for ... SSRUs 88.2C–G. We initially provide a characterisation of the fishery and a summary of available tagging ... 2 fish have been recaptured. It is likely that the lack of tag recaptures in this region has been ... caused primarily by the poor spatial overlap of released tagged fish with subsequent fishing effort. By ...

   Meeting Document : WG-SAM-14/28 : Автор(ы): S.M. Hanchet and S.J. Parker (New Zealand)

3. A review of tag-based stock assessments of the Antarctic toothfish Dissostichus mawsoni in Subarea 48.4

   Abstract:  The stock abundance of Antarctic toothfish in Subarea 48.4 is estimated using tag based ... mark-recapture analysis. During WG-FSA-14 the recommendation was made that the stock should move from ... the Petersen estimation method to the use of the Chapman bias corrected estimator; a correction ... specifically developed to reduce estimation bias in populations with low recaptures, a feature typical of the ...

   Meeting Document : WG-FSA-15/44 : Автор(ы): N. Walker, M. Soeffker, V. Laptikhovsky and T. Earl (United Kingdom)

4. Estimating prey consumption of the non-breeder component of an Adélie penguin population

   Abstract:  Estimating the consumption of prey by higher-order predators is a priority for WG-EMM ... as an element in CCAMLR’s ecosystem-based approach to management for the krill fishery in the ... recorded at the breeding colonies. However, recent work suggests that the size of the non-breeder component ... of an Adélie penguin population can be substantial compared with the size of the breeder population ...

   Meeting Document : WG-EMM-17/12 : Автор(ы): L. Emmerson and C. Southwell

5. Outline for year 2 of the 3-year longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4

   Abstract:  This paper outlines the specific research objectives and plan to achieve them for the ... second year of an agreed 3-year longline survey, in the wider context of connecting the recently ... undertaken surveys in Subarea 48.2 with the established fishery in Subarea 48.4. The overall research ... distributions of benthic bycatch species. This paper reiterates the key points of WG-SAM-17/34, updates ...

   Meeting Document : WG-FSA-17/45 : Автор(ы): M. Söffker and M. Belchier

6. Fish by-catch in the krill fishery: 2018 update

   Abstract:  Data on fish bycatch in the krill fishery from commercial catch data (120 949 hauls ... ) and CCAMLR SISO data (17 455 hauls) up to 20 Sept 2018 was used to examine the frequency of occurrence ... , length-frequency distribution and geographic provenance of the key fish taxa reported. There is an ... increase in the data quality from the observer scheme and an increase in the frequency of fish bycatch in ...

   Meeting Document : WG-FSA-18/10 : Автор(ы): CCAMLR Secretariat

7. Shipboard line transect surveys of crabeater seal abundance in the pack-ice off East Antarctica: evaluation of assumptions

   Abstract:  The extent to which the assumptions underlying line transect sampling are satisfied in ... shipboard surveys of crabeater seals hauled-out on the Antarctic pack-ice is examined. Crabeater seals ... showed little movement in response to the approaching ship. Movement away from the ship by seals close to ... the ship’s track was partially responsible for a relative lack of sightings close to the transect-line ...

   Meeting Document : WG-EMM-04/64 : Автор(ы): C. Southwell, W. de la Mare (Australia), D. Borchers and L. Burt (United Kingdom)

8. DOWN-SCALING FOOSA TO MODEL THE ADMIRALTY BAY PYGOSCELID PENGUIN COLONIES: A WORK IN PROGRESS

   Abstract:  We apply Foosa at the scale of interactions among the 3 breeding penguin colonies ... , krill, and environmental variability at the long-term research site in Admiralty Bay, King George Island ... -fitting framework for the purpose of model validation, and 2) to add and explore functionality in Foosa to ... that Foosa capably captures the general trends in adult abundance at Admiralty Bay with minimal formal ...

   Meeting Document : WG-EMM-08/51 : Автор(ы): J.T. Hinke, G.M. Watters and W.Z. Trivelpiece (USA)

9. Potential impacts of climate change on the Southern Ocean ecosystem

   Abstract:  Global climate change has the potential to disrupt the delicately poised themal balance ... in surface waters of the Southern Ocean around Antarctica, threatening this highly productive system ... with severe and permanant collapse. Pivotal to this process is a diminution of the important (but ... little studied) CO2 sink in the Southern Ocean, resulting in a series of feedback loops accelerating ...

   Meeting Document : CCAMLR-VIII/BG/21 : Автор(ы): R.G. Chittleborough (Australia)

10. Influence of tag numbers, size of tagged fish, duration of the tagging program, and auxiliary data on bias and precision of an integrated stock assessment

    collection, this study investigated how the bias and precision of a CASAL assessment is influenced by various ... aspects of a tagging program, in particular the effects of the numbers of fish tagged, the duration of a ... tagging program, the size of tagged fish, and the type of auxiliary data used in the assessment. The ... numbers were important particularly in the early stages of an exploratory fishery to ensure some ...

    Meeting Document : WG-SAM-12/24 : Автор(ы): P.E. Ziegler (Australia)

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