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1. Dynamics of Notothenia rossii rossii size-age structure on the Kerguelen Islands shelf

   (Notothenia rossii rossii) population is shown. Data on age determination for 1970-1989 (Tankevich, 1990) and ... used to characterise the age composition. It was determined that in the initial years of exploitation ... . In May-June 1991 the mean length was 59.2 cm, mean age was 7.4 years; some 70% of catch consisted of ... age groups is recommended to start in the nearest years. It will make it possible to control size- age ...

   Meeting Document : WG-FSA-94/04 : Autor(es): P.B. Tankevich (Ukraine)

2. Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   purpose of analyzing the otoliths to generate more accurate age estimates for this species. Intensive ... results finding no significant differences between the years. Von Bertalanffy parameters for the pooled ... 0.159 for females. Revised estimates of the mean total length–at– maturity (38.8cm, 46.4cm) and mean age ... –at–maturity (10.6 years, 13.6 years) are presented for males and females respectively, using a ...

   Meeting Document : WG-FSA-05/20 : Autor(es): P.M. Marriott, M.J. Manning and P.L. Horn (New Zealand)

3. A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica

   ; the maximum estimated age was 14.3 years. Von Bertalanffy parameters derived for both sexes combined ... are: L, 22.1 cm SL; K, 0.167 y-1; t 0,-0.4 years. Parameter estimates were also derived for the sexes ... distribution exhibited a mode from age 6 to 9 years. Author(s):  C.P. Sutton and P.L. Horn (New Zealand) Title ... not be sexed. Precision estimates and age bias plots indicated that there was good within-reader and ...

   Meeting Document : WG-FSA-10/20 : Autor(es): C.P. Sutton and P.L. Horn (New Zealand)

4. ADÉLIE PENGUIN SURVIVAL: AGE STRUCTURE, TEMPORAL VARIABILITY AND ENVIRONMENTAL INFLUENCES

   survival for the younger penguins whereas either too little or too much ice (between 15 and 80% cover) in ... resight data over a sixteen year period. This analysis required an extension to the basic Cormack-Jolly ... challenging to study, especially for winter migratory species such as the Adélie penguin (Pygoscelis adeliae ... annual survival of an Adélie penguin population using mark-recapture models based on penguin tag and ...

   Meeting Document : WG-EMM-11/P4 : Autor(es): L. Emmerson and C. Southwell

5. Age determination of the Antarctic fishes Champsocephalus gunnari and Notothenia rossii from South Georgia

   necessity for an errorless estimation of age. Age determination can provide basic life history information ... 55 cm in 7 years. The lack of: the large size groups for Notothenia rossii may be indicative of over ... fishing and that only the younger age groups are available for harvest. It appears that length at age data ... , including mortality, population age structure, and changes in individual growth. Most investigations have ...

   Meeting Document : SC-CAMLR-VI/BG/43 : Autor(es): R. Radtke (USA)

6. AGE ESTIMATION AND LEAD-RADIUM DATING OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI)

   used as an independent chronometer to determine age. Age estimates indicated Antarctic toothfish live ... to at least 39 years of age. Estimated and radiometric ages were in close agreement, confirming age ... Abstract:  Antarctic toothfish (Dissostichus mawsoni) are subject to an increasingly important ... rates, remain unknown. In this study, Antarctic toothfish were aged using otolith age estimation ...

   Meeting Document : WG-FSA-08/17 : Autor(es): C.M. Brooks, A.H. Andrews, J.R. Ashford, G.M. Cailliet, N. Ramanna and C. Lundstrom (USA)

7. A preliminary assessment of age and growth of eel cod (Muraenolepis sp.) and violet cod (Antimora rostrata) in the Ross Sea, Antarctica

   estimated age of 9.5 years. Von Bertalanffy parameters derived from female and unsexed fish only are: L ... age of 41.5 years. Von Bertalanffy parameters derived from female and unsexed fish only are: L., 78.4 ... Abstract:  Samples of an eel cod (Muraenolepis sp.) and violet cod (Antimora rostrata) were ... obtained from the bycatch of the longline fishery for toothfish (Dissostichus mawsoni and D. eleginoides ...

   Meeting Document : WG-FSA-10/19 : Autor(es): P.L. Horn and C.P. Sutton (New Zealand)

8. Length-age composition of icefish (Champsocephalus gunnari, perciformes, notothenioidei, Channichthyidae) from different locations of South Georgia Island subarea

   Ch.gunnari length-age composition structure at early years of life for fish inhabiting areas to the south of ... South Georgia Island Subarea. An analysis of Ch.gunnari length-age groups spatial distribution over ... have been used to study length-age composition of Champsocephalus gunnari from different locations of ... Eastern, Northern, Western, Southern Island Shelf and near Shag Rocks allowed for revealing similarity of ...

   Meeting Document : WG-FSA-00/32 : Autor(es): Zh.A. Frolkina (Russia)

9. Age validation of juvenile Notothenia rossii at Potter Cove, South Shetland Islands, using mark-recapture data

   Abstract:  Among all validation methods of age determination in fish, release of known age and ... Notothenia rossii at Potter Cove, to validate, for first time for this species using this method, the ... principle of annual deposition of an annulus in scales and otoliths. Of 132 juvenile specimens (TL = 22.1 ... –38.1 cm) tagged and released in successive years from 2004 to 2010, 7 were recaptured at the same site ...

   Meeting Document : WG-FSA-13/P01 : Autor(es): E. Moreira, E. Barrera-Oro and M. La Mesa

10. Age determination of Antarctic krill using size, fluorescence, and image analysis techniques

    constructed to relate the image analysis parameters to age approached 90% for the ages defined by length ... frequency, and 52% for physiological age. Author(s):  M.S. Berman, A.L. McVey and G. Ettershank (USA) Title ... methods indicate 6 year classes for adult krill. Correspondence between the ages determined by the two ... determined using length frequency analysis and the fluorescent age pigment (FAP) technique. Results of both ...

    Meeting Document : SC-CAMLR-VI/BG/48 : Autor(es): M.S. Berman, A.L. McVey and G. Ettershank (USA)

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