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1. Variability and predictability of Antarctic krill swarm structure

   Abstract:  Swarming is a fundamental part of the life of Euphausia superba, yet we still know very ... -concentration and inter-swarm distance of 4525 swarms was derived by this method. Hierarchical clustering ... ) whereas type 2 swarms were an order of magnitude larger and had packing concentrations up to 10 times ... greater. Further sub-divisions of these types identified small and standard swarms within the type 1 group ...

   Meeting Document : WG-EMM-10/P10 : Autor(es): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper

2. Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground

   to the main trawl ground in which the longest time series of catches and the great majority of ... releases and recaptures of tagged fish were available. Catch and releases by age class for this fishery ... years 1998 to 2008. A large proportion of the recaptures of fish released in this fishery were aged and ... of the properties of these two models for estimation of M used simulation. In application to the data ...

   Meeting Document : WG-FSA-10/41 : Autor(es): S. Candy, D. Welsford, T. Lamb, J. Verdouw and J. Hutchins (Australia)

3. The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR

   Abstract:  Sampling methods to determine the composition and nature of the catch of the longlining ... CCAMLR observers deployed on the fishing fleet. The collection of this data is important for the ... assessment and management of the fishery. This independent estimation of the total catch in the fishery ... a reasonable figure/rate of line observation for each setting of the lines. A video recording system ...

   Meeting Document : WG-FSA-14/27 : Autor(es): R.A. Benedet (United Kingdom)

4. Comparing surface and planimetric area across multiple scales and assessing the impact of different data sources on seabed area estimation in research blocks in the CAMLR Convention Area

   surface) is rarely estimated. The aims of this paper are to examine differences in: (1) planimetric seabed ... Abstract:  Having accurate surface area estimates of toothfish (Dissostichus spp) habitats is ... important for CCAMLR in estimating the fishable biomass of these species in data-poor areas, developing ... scientific survey designs and models of habitat use.  Planimetric seabed areas (i.e. a two-dimensional ...

   Meeting Document : WG-SAM-15/01 : Autor(es): CCAMLR Secretariat

5. Quantifying the escape mortality of trawl caught Antarctic krill (Euphausia superba)

   of which are expected to increase. However, many of the length classes of krill can escape through ... commonly used commercial trawl mesh sizes. A vital component of the overall management of a fishery is to ... estimate the total fishing mortality and quantify the mortality rate of individuals that escape from ... mortality rates of escaped krill. Haul duration, hydrological conditions, maximum fishing depth and catch ...

   Meeting Document : WG-EMM-16/04 : Autor(es): B.A. Krafft, L.A. Krag, A. Engås, S. Nordrum, I. Bruheim and B. Herrmann

6. By-catch of morid cods (Gadiformes: Moridae) in the CCAMLR area and adjacent areas during commercial fishing and research surveys

   distributions, size composition and abundance of morids in the CCAMLR and adjacent areas. The main goal is to ... detection of areas and depths of their aggregations, by reveal of presence/absence of spatial and vertical ... migrations and by study of their seasonal and multi-annual variations. Results will be used for preparation ... of conservation measures allowing for preservation these vulnerable by-catch species from irreparable ...

   Meeting Document : WG-EMM-16/24 : Autor(es): Delegation of the Russian Federation

7. High-resolution ocean modelling of the South Georgia and South Orkney Islands regions

   South Orkney Islands is highly productive, with a history of commercial exploitation. Many of the key ... oceanographic and ecological processes that determine the structure and functioning of this ecosystem operate ... over small scales of <10 km. Historically, these fine spatial scales have been poorly represented in ... numerical models. Here we describe the development of two regional ocean models that will be used to examine ...

   Meeting Document : WG-EMM-16/15 : Autor(es): E. Young, E. Murphy and P. Trathan

8. Report on the monitoring program of chinstrap and gentoo penguins at Narębski Point (ASPA No. 171), King George Island, since 2006

   Abstract:  Korea Polar Research Institute, with support of the Korean Ministry of Environment, has ... conducted an annual survey on the breeding biology of Chinstrap (Pygoscelis antarctica) and Gentoo penguins ... (Pygoscelis papua) as a part of a long-term ecological research at Narębski Point (Antarctic Specially ... Protected Area, No. 171), Barton Peninsula on King George Island. Since 2012/2013, the number of breeding ...

   Meeting Document : WG-EMM-16/62 : Autor(es): Delegation of the Republic of Korea

9. An update on the ageing of Antarctic toothfish, Dissostichus mawsoni, from East Antarctica and the Amundsen Sea

   Abstract:  This paper presents an update on the ageing of Antarctic toothfish, Dissostichus ... , experienced readers at the Australian Antarctic Division (AAD) read a subset of 40 otoliths from the New ... against the New Zealand reference ages showing a high level of precision (all IAPE < 5%, CV < 7 ... %). Sister pairs of Antarctic toothfish otoliths were also prepared, one using the ‘bake and embed’ method ...

   Meeting Document : WG-FSA-17/15 : Autor(es): G. Nowara, B. Farmer, T. Barnes, P. Ziegler and D. Welsford

10. Preliminary biomass estimation of Antarctic krill based on the swarm-based method for CCAMLR Division 58.4.1 in 2018/19 using data obtained by Japanese survey vessel Kaiyo-maru

    Abstract:  Biomass (B 0) of Antarctic krill for CCAMLR Division 58.4.1 in 2018/19 was ... different, (2) timing of the surveys were different (Kaiyo-maru survey commenced about 40 days earlier than ... BROKE) and (3) areal coverages were different primary because of difference of positions of sea ice edge ... especially in the western part of the Division. The CV of biomass estimate of Kaiyo-maru survey was high ...

    Meeting Document : SG-ASAM-2019/02 : Autor(es): K. Abe, R. Matsukura, N. Yamamoto, K. Amakasu and H. Murase

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