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1. A method for preparing large numbers of otolith sections for viewing by scanning electron microscope

   Abstract:  In an investigation of the age structure of a population of Notothenia coriiceps ... Richardson at the South Orkney Islands, Antarctica, the microstructure of otoliths was examined. Progress is ... reported on a method used for processing large numbers of otoliths using a scanning electron microscope ... facilitate present methods of ageing fish populations, especially for fishery work in the Antarctic where ...

   Meeting Document : WG-FSA-93/07 : Autor(es): J.R. Ashford, K. Robinson and M.G. White (United Kingdom)

2. Long-term change in zooplankton communities of the Southern Ocean between 1997 and 2018: implications for fisheries and ecosystems

   Abstract:  We provide an analysis of zooplankton distributions in the circumpolar Southern Ocean ... productivity, sea-surface temperature (SST), mixed layer depth, sea ice and the spatial gradient of SST (as an ... indicator of ocean fronts). Boosted Regression Tree models were used to investigate relationships between ... the abundances of key groups of zooplankton, occurrence of characteristic zooplankton communities, and ...

   Meeting Document : WG-EMM-2019/66 : Autor(es): M.H. Pinkerton, M. Decima, J. Kitchener, K. Takahashi, K. Robinson, R. Stewart and G.W. Hosie

3. Short note on time series of Drake Passage Oscillation Index (DPOI) and its influence on environmental variability

   Abstract:  An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... , between Rio Gallegos, Argentina, and Base Esperanza, at the tip of the Antarctic Peninsula during 1982 ...

   Meeting Document : WG-EMM-07/14 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)

4. Interannual variation in the summer diet of Adélie penguin (Pygoscelis adeliae) at Edmonson Point

   Abstract:  Diet sampling of Adélie penguins (Pygoscelis adeliae) was carried out at two colonies ... , in the Ross Sea, Antarctica, to study the feeding ecology of this species for the Commission for the ... Conservation of Antarctic Marine Living Resources (CCAMLR) Ecosystem Monitoring Program. The study took place ... composition of diet varied between locations: mean weight of food and krill content were generally higher at ...

   Meeting Document : WG-EMM-04/38 : Autor(es): S. Olmastroni, F. Pezzo, I. Bisogno and S. Focardi (Italy)

5. Trends in breeding numbers and survival of black-browed (Thalassarche melanophrys) and grey-headed albatrosses (T. chrysostoma) breeding on Macquarie Island

   are globally threatened seabirds that breed on remote subantarctic islands. Population trends of black ... calculated for both species over similar time frames. Breeding numbers and survival rates of black-browed and ... conclusive evidence of survival varying over time and it is unlikely that these populations have been ... subantarctic populations of these species and may be attributed to their foraging ranges not overlapping ...

   Meeting Document : WG-FSA-04/48 : Autor(es): A. Terauds, R. Gales and R. Alderman (Australia)

6. Stock assessment of D. eleginoides in Subarea 48.3 using dynamic production models

   in subarea 48.3. This type of the models differ from the models currently used by CCAMLR Working ... Schaefer and Fox production functions) were used: total yield for a series of years and abundance index ... estimates by years of fishing. Both models showed that the D. eleginoides stock status at the initial period ... of intensive fishery was at the level of 22-24 thousand tons. In 1989-1990 stock size increased (to ...

   Meeting Document : WG-FSA-02/78 : Autor(es): P.S. Gasiukov and R.S. Dorovskich (Russia)

7. Age, growth and size at sexual maturity of Macrourus carinatus from the CCAMLR fisheries in division 58.5.2

   Abstract:  Estimates of age and growth were determined from 156 Macrourus carinatus otolith ... 1993. The estimated range of ages was 4 – 25 years. von Bertalanffy growth parameters were calculated ... for both sexes combined, resulting in values of: L8 = 635 mm, K = 0.088 and t0 =-1.8. The size at ... sexual maturity of M. carinatus was determined from 162 specimens collected during commercial fishing ...

   Meeting Document : WG-FSA-02/48 : Autor(es): E.M. van Wijk, R. Williams and A.J. Constable (Australia)

8. Distribution of salps near the South Shetland Islands during austral summer, 1990/1991 with special reference to krill distribution

   Abstract:  Distribution and biomass of salps and Antarctic krill (Euphausia superba) were ... was lower than that of E. superba. Two species of salps; Salpa thompsoni and Ihlea racovitzai were ... found, and the former was dominant numerically. Spatial distribution and generation composition of these ... two species was different. Spatial distributions of salps and E. superba did not overlap particularly ...

   Meeting Document : WG-EMM-95/54 : Autor(es): Terazaki, M., Ichii, T., Kawaguchi, K., Nishikawa, J., Ishii, H., Naganobu, M.

9. Preliminary aspects of a simulation model to be used for evaluating the experimental crab fishery

   Abstract:  At the 1993 meeting of the Working Group on Fish Stock Assessment, members requested ... that work be undertaken to evaluate certain aspects of the experimental management strategy for the ... rate data from the 1991/92 crab fishery are used to motivate the construction of an ontogenetic ... fishery simulation is spatially explicit, and the dynamics of crab abundance are described on a daily ...

   Meeting Document : WG-FSA-94/26 : Autor(es): G. Watters (USA)

10. Fish as diet of the blue-eyed shag, Phalacrocorax atriceps bransfieldensis at Half-Moon Island, South Shetland Islands

    Shetland Islands, during January and February 1993, were analyzed to determine the importance of fish in ... the diet of the blue-eyed shag Phalacrocorax atriceps bransfieldensis. Fish species were identified by ... means of otoliths found in the casts. The size and weight of the fish were estimated from the otolith ... , comprising 91% of prey items. From the 937 otoliths found, 562 fish were represented and 524 were assigned to ...

    Meeting Document : WG-CEMP-94/32 : Autor(es): E.R. Barrera-Oro and R.J. Casaux (Argentina)

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