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1. COMPARISON OF THE PRECISION OF DIRECT VERSUS AGE LENGTH KEY METHODS OF ESTIMATING CATCH-AT-AGE PROPORTIONS

   class. This “direct” method can be replaced by the age length key (ALK) method if there are in addition ... where fish are measured only for length and tallied by length bins (the LF sample). The ALK method uses ... the extra information in the LF sample to calculate proportions by age by multiplying the probability ... by length bin estimated from the LF sample by the conditional probability of age given length bin ...

   Meeting Document : WG-FSA-09/22 Rev. 1 : Author(s): S.G. Candy (Australia)

2. Results of research program of the Russian Federation in Subarea 48.5 (Weddell Sea) in season 2012/13

   first time. New commercial and biological data on the target (Dissostichus mawsoni Norman, 1937) and by ... Antarctic toothfish and by-catch species by depth ranges has been investigated. Data on CPUE and commercial ... density have been collected. Calculation of stock assessment has been done by areal method that is ... recommended by CCAMLR (SC-CCAMLR-XXX/5 п. 2.40 (ii)). Calculated stock of toothfish in Subarea 48.5 equal 428 ...

   Meeting Document : WG-SAM-13/23 : Author(s): A.F. Petrov, I.I. Gordeev and E.F. Uryupova (Russia)

3. Results of research program of the Russian Federation in Subarea 48.5 (Weddell Sea) in season 2012/13

   first time. New commercial and biological data on the target (Dissostichus mawsoni Norman, 1937) and by ... Antarctic toothfish and by-catch species by depth ranges has been investigated. Data on CPUE and commercial ... density have been collected. Calculation of stock assessment has been done by areal method that is ... recommended by CCAMLR (SC-CCAMLR-XXX/5 п. 2.40 (ii)). Calculated stock of toothfish in Subarea 48.5 equal 428 ...

   Meeting Document : WG-FSA-13/11 : Author(s): A.F. Petrov, I.I. Gordeev and E.F. Uryupova (Russia)

4. Application of aerial photography for ecological survey and habitat management of Adélie penguins

   Abstract:  There are some limits to the accurate counting of the total number of nests by ground ... taken with a drone had a higher resolution than those taken by helicopter, and in the drone images ... , but we filled the missing parts by using photographs taken by helicopter at a high altitude. By ... exact location and type of wastes generated by human activities throughout Cape Hallett. Author(s):  J ...

   Meeting Document : WG-EMM-18/38 : Author(s): J.-H. Kim, H.-C. Kim, J.-I. Kim, C.-U. Hyun, J.-W. Jung, Y.-S. Kim, H. Chung and H.C. Shin

5. Nesting behaviour of the icefish Chaenocephalus aceratus at Bouvetøya Island, Southern Ocean (CCAMLR Subarea 48.6)

   Abstract:  In this paper we describe in situ observations on nesting by the Scotia Sea (or ... and parental care by species of the family Channichthyidae. These novel observations are enriched by ... descriptions of the seafloor community that is impacted by fish nesting. Given the vulnerability of spawning ... grounds and their associated megafauna to damage by bottom trawling and the associated impact on ...

   Meeting Document : WG-FSA-04/26 : Author(s): H.W. Detrich III, C.D. Jones, S. Kim (USA), A.W. North (United Kingdom), A. Thurber (USA) and M. Vacchi (Italy)

6. Has krill fishing the potential to adversely affect recruitment in Antarctic notothenioid fishes?

   by-catch in fisheries targeting krill. The species composition of fish by-catch in krill fisheries is ... 2000s made attempts to estimate the quantity of by-caught fish. They demonstrated that, on occasions ... , the by-catch was substantial. Fish by-catch in krill fisheries has been discussed in WG-FSA since the ... 25 years later WG-FSA is still not in the position to estimate the amount of fish by-catch reliably ...

   Meeting Document : WG-FSA-14/66 : Author(s): K.-H. Kock (Germany) and C.D. Jones (USA)

7. Changes in the diet of the South Georgia shag Phalacrocorax georgianus at the South Orkney Islands along four consecutive years

   Orkney Islands, was studied by the analysis of 337 pellets (regurgitated casts) collected during the 1995 ... , 1996, 1997 and 1998 breeding seasons. Demersal-benthic fish were by far the main prey, followed by ... Lepidonotothen nudifrons (1996 and 1997) were the most frequent preys followed by Gobionotothen gibberifrons or ... Trematomus newnesi. Harpagifer antarcticus, followed by L. nudifrons or T. newnesi, was the most numerous ...

   Meeting Document : WG-EMM-00/8 : Author(s): R. Casaux and A. Ramón (Argentina)

8. Biomass of Antarctic krill around South Shetland using 2-dB difference method in April 2016

   operated by Norway, Korea, and Japan, etc. Major fishing area is the surroundings of South Sheltland where ... it is surrounded by Darke Passage in North, Weddle Sea in East, and Bransfield Strait in South ... that inhabit in the surroundings of South Sheltland by using acoustics. An acoustic survey was ... differences were investigated by cell size (5ping*2m, 10ping*2m, 30ping*2m, 40ping*2m, 50ping*2m). In addition ...

   Meeting Document : WG-EMM-16/60 : Author(s): Delegation of the Republic of Korea

9. Analysis of the stomach content in the blue-eyed shag Phalacrocorax atriceps bransfieldensis at Nelson Island, South Shetland Islands

   were by far the main component, followed by octopods, polychaetes and gammarids. Notothenia coriiceps ... , predominated in frequency (58%) and in weight (65%), whereas Nototheniops nudifrons was the most important by ... field, it reduces the errors arose from the examination of regurgitated casts, like erosion by digestion ... complemented with information on shags’ foraging trips, obtained in the field by film records. Author(s):  N ...

   Meeting Document : WG-CEMP-94/31 : Author(s): N. Coria, R. Casaux, M. Favero and P. Silva (Argentina)

10. Diet and trophic niche of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica

    Abstract:  The diet of Antarctic silverfish (Pleuragramma antarcticum) was evaluated by examining ... % respectively), with copepods being a relatively minor constituent of overall diet by weight (9.9%). Piscivory ... by silverfish occurred mainly in the extreme south-west of the region and near the continental slope ... . By weight, krill identified to species level in silverfish stomachs were predominantly Euphausia ...

    Meeting Document : WG-EMM-12/54 : Author(s): M.H. Pinkerton, J. Forman, S.J. Bury, J. Brown, P. Horn and R.L. O’Driscoll (New Zealand)

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