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1. Estimation and correction of migration-related bias in the tag-based stock assessment of Patagonian toothfish in Division 58.5.2

   Abstract:  Migration has the potential to violate the assumptions of tag recapture models used in ... the assessment of toothfish stocks. Evaluating the potential bias introduced into stock assessments ... and tag-based biomass estimates when the distributions of tagged fish, fishing effort and the ... underlying stock distribution are spatially heterogeneous is currently one of the highest priorities of the ...

   Meeting Document : WG-SAM-17/11 : Автор(ы): P. Burch, P. Ziegler, D. Welsford and C. Péron

2. Progress report on the joint research for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand and notification of research in 2018/19

   –883_5. Due to extreme ice conditions covering the southern part of 88.3, the Janas (NZL) was not able to ... conduct its part of the survey. The total catch of D. mawsoni was 38,856 kg comprised of 1,380 individuals ... in blocks 883_3 and 883_4 showed similar values of 0.1369 and 0.1466 kg/hook, research block 883_5 ... per tonne and 72%. The length frequency of D. mawsoni exhibited a bimodal distribution with modes near ...

   Meeting Document : WG-SAM-18/05 : Автор(ы): Delegations of the Republic of Korea and New Zealand

3. On possible influence of continuous krill fishing technology with the use of ‘air-bubbling suspension system’ on ecosystem elements

   , accompanied by introduction of highly intensive fishing and processing technologies call for studying the ... fishery influence on ecosystem components beyond the framework of traditional investigations of predator ... of studying the krill fishing technology. It is just trawl design and fishing method that will ... determine catchability, selectivity and ecological compatibility of the gear during the fishery and ...

   Meeting Document : WG-EMM-06/27 : Автор(ы): S.M. Kasatkina and V.A. Sushin (Russia)

4. Report of ACAP Working Group on Status and Trends Agreement on the Conservation of Albatrosses and Petrels – Status and Trends Working Group

   Abstract:  1. The first Session of the Meeting of the Parties (MOP1) of the Agreement on the ... Conservation of Albatrosses and Petrels (ACAP) agreed to review the population status, trends and demography of ... albatrosses (21 species) and petrels (seven species) listed on Annex 1 of the Agreement (MOP1 Final Report ... aim of collecting and collating information on breeding numbers and critical population and ...

   Meeting Document : WG-FSA-06/40

5. Revision of biological and population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a comprehensive survey of fishing grounds and recruitment areas in the region

   Abstract:  Based on a survey of Dissostichus eleginoides in the Heard Island region in April 1999 ... ) to provide an assessment of biomass and stock structure in the vicinity of Heard, (ii) to examine the ... of Dissostichus eleginoides at Heard Island in the southern Indian Ocean and South Georgia Island in ... slower growing than those at South Georgia. This raises questions as to the appropriateness of the ...

   Meeting Document : WG-FSA-99/68 : Автор(ы): A.J. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)

6. DEVELOPMENT OF A REGISTRY OF VULNERABLE MARINE ECOSYSTEMS IN THE CONVENTION AREA

   Abstract:  Conservation Measure (CM) 22-06 requires the Secretariat to maintain an inventory of ... fishery and their Flag States of the location of VME risk areas and fine-scale rectangles. The Secretariat ... has established an interim VME registry for archiving notifications of encounters with VMEs during the ... course of research surveys (CM 22-06) and VME-indicator notifications from fishing vessels (CM 22-07 ...

   Meeting Document : WG-FSA-09/06 : Автор(ы): Secretariat

7. COMPARATIVE CHARACTERISTICS OF PATAGONIAN (DISSOSTICHUS ELEGINOIDES) AND ANTARCTIC (D. MAWSONI NORMAN) TOOTHFISH INHABITING DIFFERENT SECTORS OF THE SOUTHERN OCEAN

   Abstract:  On the basis of our own data and literature materials, the schematic posters showing ... spatial and vertical distribution of two toothfish species during their whole life cycle, changes in food ... of these parameters revealed essential differences in food spectra both at the first pelagic stage of ... their life cycle and during the period of their habitation on the shelf and continental slope. At that ...

   Meeting Document : WG-FSA-09/24 : Автор(ы): K.V. Shust, I.P. Zarikhin, I.G. Istomin, A.F. Petrov, V.A. Tatarnikov and N.S. Demina (Russia)

8. ON THE STUDY OF FECUNDITY AND EGGS SIZE OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI NORMAN 1937

   Abstract:  The results of the microscopic analyses of the Antarctic toothfish (Dissostichus ... mawsoni) fecundity and eggs size, caught in December-March the Pacific and Indian Ocean area of the ... fecundity of the Antarctic toothfish: individual absolute fecundity by the largest oocytes, share of largest ... trophoplasmic oocytes and their diameter. The frequency of Antarctic toothfish females with the ovaries on IV ...

   Meeting Document : WG-FSA-08/35 : Автор(ы): S.V. Piyanova. A.F. Petrov and N.V. Kokorin (Russia)

9. Midwater trawl catchability regarding quantitative estimation of krill biomass using the method of trawling surveys on abundance

   distributional pattern in the surveyed area enable to increase reliability of the biomass estimates. Comparative ... analysis for catchability of fishery midwater trawls and small research trawls, when Isaaks-Kidd trawl was ... taken as an example, proved the latters not to be suitable for krill biomass estimation using method of ... surveyed ground and the biomass estimates were characterized by high relative error. Standard methods of ...

   Meeting Document : WG-KRILL-91/32 : Автор(ы): S.M. Kasatkina (USSR)

10. A PRELIMINARY BALANCED TROPHIC MODEL OF THE ECOSYSTEM OF THE ROSS SEA, ANTARCTICA, WITH EMPHASIS ON APEX PREDATORS

    Abstract:  We report on the development of a mass balanced carbon-budget trophic model of the Ross ... Sea as a step towards investigating ecosystem effects of the fishery for Antarctic toothfish ... (Dissostichus mawsoni). The model has 30 trophic groups representing all the major biota of the Ross Sea. Many ... of the lower trophic level species in the model are grouped by functional role because information is ...

    Meeting Document : WG-EMM-08/42 : Автор(ы): M.H. Pinkerton, J.M. Bradford-Grieve and S.M. Hanchet (New Zealand)

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