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1. A characterisation of the toothfish fishery in the Ross Sea region (Subarea 88.1 and SSRUs 88.2A–B) to 2016–17

   Abstract:  This report summarises fishing catch and effort in the Ross Sea region (Subarea 88.1 ... the 2017 season. In 2017, sea ice constraints were minimal and catch rates were the second highest on ... record, resulting in the shortest season to since the fishery started. Median and 90%ile scaled lengths ... driven by location of fishing. The strongest time trend in the data is the change in the sex ratio over ...

   Meeting Document : WG-FSA-17/07 : Автор(ы): S. Parker and S. Mormede

2. Gonad analysis of Antarctic toothfish in Subareas 58.4 and 88.3

   found to be 0.50, and displayed the tendency of increase with increase in the total length 140 cm. The ... -synchronous type. In the ovaries of growing stage, initial vitellogenic oocytes with approximately 150 ㎛ of ... existed in the cortical section of the cytoplasm. Histological testicular type of Antarctic toothfish was ... testicular lobule type, and the testicular lobule was composed of numerous testicular cysts. In the testis of ...

   Meeting Document : WG-FSA-17/09 : Автор(ы): J. Kim, S.-G. Choi, J. Lee, J. Lee and D. An

3. Characteristics of interannual variation in aggregation and diurnal vertical migration of Antarctic krill at South Georgia during winter

   Abstract:  We elucidated characteristics of interannual variability in density index, recruitment ... index and diurnal vertical distribution for Antarctic krill in krill fishing grounds (hotspots) at South ... predictable fishing grounds occurred in the restricted areas throughout the study period. Main results are as ... follows: Median CPUEs did not show particularly low values in winter even when krill abundance and ...

   Meeting Document : WG-EMM-18/34 : Автор(ы): T. Ichii, Y. Mori, P.N. Trathan, K. Mahapatra, M. Okazaki, T. Hayashi and T. Okuda

4. On peculiarities of icefish (Champsocephalus gunnari) vertical distribution in different habitats

   age groups have been continuously found in the pelagic layer off South Georgia and Kerguelen-Heard ... . Immature fish also partially distribute in the pelagic layer both in the daytime and at night. Mature fish ... , as a rule, are at the bottom in the daytime, however in some years they like immature fish, have been ... caught with pelagic fishing gear in the water column during the daytime. Author(s):  J.A. Frolkina ...

   Meeting Document : WG-FSA-03/54 : Автор(ы): J.A. Frolkina (Russia) and V.V. Herasimchuk (Ukraine)

5. New corrections factors for the quantification of fish represented in pellets of the blue-eyed shag Phalacrocorax atriceps

   necessary for the quantification of fish represented in pellets. These factors were obtained for Notothenia ... , Notolepis coatsi and Electrona antarctica were represented in pellets but not found in the stomach contents ... . Fish were the main prey and N. coriiceps and H. antarcticus were the dominant species both in mass and ... number. Observations on behaviour showed that the daily foraging trips per bird increased in number but ...

   Meeting Document : WG-EMM-95/83 : Автор(ы): Silva, P., Casaux, R., Favero, M., Barrera-Oro, E.

6. Preliminary model of krill fishery behaviour in Subarea 48.1

   fishery in Subarea 48.1 and estimates the effort applied and the catch of krill in fine-scale squares ... March, compare favourably with the general distribution of catches in Subarea 48.1. A number of ... the management option of closing the zones around Livingston and Elephant Islands in alternate years ... would result in an average yearly catch similar to that at present, although the catch is much more ...

   Meeting Document : WG-KRILL-93/14 : Автор(ы): D.J. Agnew (Secretariat)

7. Declining trend in the abundance of fjord fish of the species Notothenia rossii marmorata and Notothenia gibberifrons observed at two localities of South Shetland Islands

   Abstract:  A declining trend observed in the abundance of fjord fish of the species Notothenia ... nets at Potter Cove, King George/25 de Mayo I., from 1983 to 1990 and in waters around Half-Moon I ... ., Moon Bay, in 1989. The analysis was based on the proportion of catches of the mentioned species in ... relation to Notothenia neglecta, a species with similar ecological habits in the fjords. Comparison with ...

   Meeting Document : WG-FSA-90/14 : Автор(ы): E. Barrera-Oro and E. Marschoff (Argentina)

8. Plastic ingestion by petrels breeding in Antarctica

   Abstract:  Plastic particles were found to be common pollutants in stomachs of Wilson’s Storm ... Petrels and Cape Petrels breeding on the Antarctic continent. Highest incidence of plastics was found in ... chicks of Wilson’s Storm Petrels that had died before fledging. Few or no plastics were found in Snow ... the Antarctic, and that relatively few plastics are available in Antarctic waters. Possible hazards of ...

   Meeting Document : CCAMLR-VIII/BG/09 : Автор(ы): J.A. van Franeker (Netherlands) and P.J. Bell (Australia)

9. Further development of pairwise tag detection performance index and its application to the stock assessment of toothfish in the Ross Sea fishery

   Abstract:  Tag release and recapture data are used in integrated age-structured stock assessments ... of Antarctic toothfish (Dissostichus mawsoni) in Subareas 88.1 and 88.2 to determine abundance and ... ) could lead to an over-estimate of the stock biomass. In this paper we develop further an index of vessel ... subset of vessels for which  there is confidence in their tag-recapture data. Finally, we apply these ...

   Meeting Document : WG-SAM-13/34 : Автор(ы): S. Mormede (New Zealand)

10. A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2014 random stratified trawl survey

    Abstract:  The annual Random Stratified Trawl Survey was undertaken in Division 58.5.2 in the ... standard CCAMLR methods. A pattern of multiple year classes being present simultaneously in the population ... , which was first detected in 2011, has persisted. The large cohort observed in recent surveys was still ... projected. These projections indicate that catches of 309t in the 2014/15 season and 275t in the 2015/16 ...

    Meeting Document : WG-FSA-14/44 : Автор(ы): D.C. Welsford (Australia)

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