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1. Predation release of Antarctic silverfish in the Ross Sea: how sensitive is the conclusion to uncertainties in the diet of Antarctic toothfish over the shelf?

   Abstract:  Between 2001 and 2013 the number of breeding pairs of Adélie penguins (Pygoscelis ... half a million. It has been suggested that predation release of Antarctic silverfish (Pleuragramma ... antarctica) due to fishing of one of its predators, Antarctic toothfish (Dissostichus mawsoni), could have ... , consumption rates and diets of toothfish and Adélie penguins over the Ross Sea shelf as a first test of the ...

   Meeting Document : WG-FSA-15/41 : Автор(ы): M.H. Pinkerton, P. O’B. Lyver, D.W. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand)

2. Model-based mapping of assemblages for ecology and conservation management: A case study of demersal fish on the Kerguelen Plateau

   of Common Profile (RCP) to quantify and map the distribution of demersal fish assemblages in an ... ecologically significant region of the Southern Ocean to a) gain ecological and management insights and b ... ) evaluate the utility of the new method for ecoregionalisation. The RCP approach is a multi-species, model ... -based approach that can overcome many limitations of traditional distance-based approaches.  It ...

   Meeting Document : WS-SM-18/P02 : Автор(ы): N.A. Hill, S.D. Foster, G. Duhamel, D. Welsford, P. Koubbi and C.R. Johnson

3. Comparison of estimators of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial Distribution

   Abstract:  The incorporation of “effective sample size” (ESS) in integrated assessments is an ... approximate but simple way of modelling the distribution of catch-at-age or catch-at-length frequencies using ... frequencies. The ESS applied within the definition of the negative log-likelihood contribution to the ... -length frequency data relative to the other types of data used in integrated assessments of toothfish ...

   Meeting Document : WG-SAM-07/7 : Автор(ы): S.G. Candy (Australia)

4. On biogeographic patterns of benthic invertebrate mega fauna on shelf areas of the Southern Ocean Atlantic sector

   Abstract:  The ideal approach to bioregionalisation of Antarctic and Southern Ocean shelf ... communities incorporates a range of data on physical, environmental and biological properties, as well as the ... interaction of these properties. Here, benthic invertebrate megafaunal communities of shelf habitats within ... the Atlantic sector of the Southern Ocean were analysed quantitatively from scientific survey trawl ...

   Meeting Document : WS-BSO-07/10 : Автор(ы): S.J. Lockhart and C.D. Jones (USA)

5. Monitoring of relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, in years 2000 to 2003

   Abstract:  The monitoring program of demersal fish at inshore sites of the South Shetland Islands ... has continued in Potter Cove from 2000 to 2003, covering a continuous sampling period of twenty years ... net catches of fjord fishes of the species Notothenia rossii and Gobionotothen gibberifrons in ... 1983-1999, is still evident. At Potter Cove, higher catches of N. rossii were obtained from 1991 to ...

   Meeting Document : WG-FSA-03/89 : Автор(ы): E. Barrera-Oro, E. Marschoff, R. Casaux and B. Gonzalez (Argentina)

6. On possibility of using acoustic method to improve quality of Champsocephalus gunnari biomass estimates in Subarea 48.3

   Abstract:  An attempt has been made to study icefish as an object of acoustic survey basing on the ... acoustic and biological data obtained by Russian RN ATLANTIDA in the area of South Georgia Island (January ... -February 2000). Estimation of possible target strength values was made by a comparison to TS of other fish ... and physical body properties. There has been proved a comparability of Ch.gunnari length frequencies ...

   Meeting Document : WG-FSA-00/31 : Автор(ы): S. Kasatkina (Russia)

7. On the state of Champsocephalus gunnari stock in Subarea 48.3 and methods of its assessment

   2000 showed clearly a necessity to revise the methods of icefish (which is near-bottom and pelagic fish ... species) biomass assessment based on the results of bottom trawl surveys. A question on unreliability of ... stock assessment was repeatedly raised on the meetings of Working Group on Fish Stock Assessment (WGFSA ... ) both during the period of the icefish fishery in 1980s and after its ceasing in 1990s. In all cases, a ...

   Meeting Document : WG-FSA-00/45 : Автор(ы): K. Shust, V. Senioukov, P. Gasiukov and A. Kozlov (Russia)

8. THE HISTOLOGICAL ANALYSIS OF OOGENESIS AND MATURITY OF ANTARCTIC TOOTHFISH FROM THE ROSS SEA

   Abstract:  The results of the histological analysis of the Antarctic toothfish (Dissostichus ... morphological parameters, indices of gonads and condition by Fulton have been described. The histological ... criteria of the assessment of the ovary maturity stages, cytological parameters of oocytes and type of the ... toothfish oogenesis have been determined. At the maturing of toothfish, ovaries from the stages III to IV ...

   Meeting Document : WG-FSA-09/26 : Автор(ы): S.V. Piyanova and A.F. Petrov (Russia)

9. Demographic studies of Antarctic krill Euphausia superba Dana in the Cooperation and Cosmonaut Seas (Indian sector of the Southern Ocean)

   Abstract:  The reproductive state and size composition of Euphausia superba collected in the ... Indian sector of the Southern Ocean from 1985 to 1990 were analyzed to estimate its growth, life span and ... mortality rates. The duration of the life cycle of E.superba exceeded 5 years in the Cosmonaut Sea and 6 ... -0.133 mm.d-1, during the first year of life, to 0.019-0.022 mm.d-1 during the fifth year. Von ...

   Meeting Document : WG-Krill-94/16 : Автор(ы): E.A. Pakhomov (Ukraine)

10. Distribution and abundance of Antarctic krill in the vicinity of Elephant Island during the 1994 austral summer

    Abstract:  The distribution and abundance of Antarctic krill (Euphausia superba) were estimated ... from four acoustic surveys conducted in the vicinity of Elephant Island, Antarctica, from mid-January ... Island and the eastern end of King George Island; the second and third surveys covered approximately 2100 ... n.mile2 immediately north of Elephant Island. During the first survey, the highest densities of krill were ...

    Meeting Document : WG-Joint-94/09 : Автор(ы): R.P. Hewitt and D.A. Demer (USA)

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