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1. Length-age composition of the Patagonian toothfish, Dissostichus eleginoides, from the Kerguelen Island area

   abundant in catches, mean age was 8.2- 9.8 years. In the 1991/92 season fishing for the species was ... this period were located in the west shelf area (48°30’- 49°30’S and 66°50’- 67°20’E). Total catch was ... fluctuate considerably, mean fish length was 76.0- 86.6 cm. Fish of two to 14 years old age groups were most ... concentrated in the north shelf area (47°10’- 47°30’S and 66°50’- 67°20’E). Total catch was about 5.2 x 103 ...

   Meeting Document : WG-FSA-92/08 : Автор(ы): V.G. Prutko and V.N. Chikov (Ukraine)

2. Preliminary studies on age, growth and size at sexual maturity of Dissostichus eleginoides in the Ob-Lena Bank in the 2007/08 season

   fifteen years gave large contribution to the total age groups for both sexes. Females grew at a faster ... tended to overestimate for < 30 years, but underestimate for > 30 years, as compared to AAD readers ... hand, the age at 50 % maturity for females and males was estimated to be 12.3 and 12.5 year ... comments. The estimated ages ranged from 5 to 48 years for males and from 4 to 48 years for females. Ten to ...

   Meeting Document : WG-FSA-11/16 : Автор(ы): K. Taki, T. Iwami and M. Kiyota (Japan)

3. Catch-at-age analysis applied to new fisheries: the case of Dissostichus eleginoides

   , analyses using catch-at-age data derived from research cruises may provide an alternative to other methods ... Paper Title:  Catch-at-age analysis applied to new fisheries: the case of Dissostichus eleginoides ... fish stocks, which seriously affect model assumptions. This paper demonstrates that for the new fishery ... model assumptions. This paper demonstrates that for the new fishery, analyses using catch-at-age data ... (recruitment = mortality); and • fishing mortality is separable by age (Doubleday, 1976). Catch-at-age for ... = relative fishing mortality coefficient at age F = fishing mortality for completely recruited fish M ... = natural mortality 't = research survey duration (in years) R = recruitment t r = age at recruitment t ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 3–9 : Автор(ы): Zuleta, A.V. and C.A. Moreno

4. 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 : Автор(ы): P.B. Tankevich (Ukraine)

5. 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 : Автор(ы): P.M. Marriott, M.J. Manning and P.L. Horn (New Zealand)

6. 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 : Автор(ы): C.P. Sutton and P.L. Horn (New Zealand)

7. 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 : Автор(ы): L. Emmerson and C. Southwell

8. 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 : Автор(ы): R. Radtke (USA)

9. 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 : Автор(ы): C.M. Brooks, A.H. Andrews, J.R. Ashford, G.M. Cailliet, N. Ramanna and C. Lundstrom (USA)

10. 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 : Автор(ы): P.L. Horn and C.P. Sutton (New Zealand)

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