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1. Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)

   , 2.5 and 3.5 years were estimated to be 14, 28, 37 and 46 cm total length (TL) respectively. These ... fish younger than 3.5 years. Counting translucent zones in the otoliths of D. mawsoni appears to be a ... D. mawsoni that had been injected with oxytetracycline some years before recapture. The six ... recaptured fish were all large (129–145 cm TL at tagging) and had been at liberty from 1 to 7 years. The ... . 0 20 40 60 80 100 120 140 160 180 0 5 10 15 20 25 30 Age (years) To ta l l en gt h ... is from 0.6 to 4.0 cm yr-1 for fi sh aged from 15 to 30 years. It is interesting that all the ... between 0+ and 3+ years. A length-frequency distribution of the aged fi sh by estimated year class ... -901, Kilbirnie Wellington, New Zealand A.L. DeVries Department of Animal Biology University of ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 125–138 : Автор(ы): Horn, P.L., C.P. Sutton and A.L. DeVries

2. Seabird interactions with longlining operations for Dissostichus eleginoides at the South Sandwich Islands and South Georgia

   INTRODUCTION In recent years, decreases in populations of several species of Southern Ocean albatrosses ... saving of $A4.9 million and 30 300 albatrosses annually. The Japanese tuna fishery is in the process ... TwineTM #20. Eyeless hooks of size #26 MarutoTM (28 mm) were tied to the free ends of the secondary ... coils, each coil 75 m long with 30 to 38 hooks, giving a total length of main line of 22 500 m and a ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 143–153 : Автор(ы): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno

3. CCAMLR ecosystem monitoring and management: future work

   scale during the early stages of the fi shery and to 0 1 2 3 0 1 2 3 D en si ty 0 10 20 30 ... procédures déjà proposées pour la gestion de la pêche de krill. Il met en relief la nécessité de diriger ... Living Resources (CCAMLR) since 1982. Article IX of the Convention on the Conservation of Antarctic ... assessing such evidence during the formative years of CCAMLR. Decisions were made only in reaction to ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Автор(ы): Constable, A.J

4. The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species

   20-30 years, wl~ich is the critical period over which the system should not be irreversibly changed ... zero after 20 years. Prey 2 is more abundant (-3x) than Prey 1 in the absence of fishing and then ... inainmals - M AG Americas, 2000) Age at maturity (years) Plus class Natural mortality (year-]) Body ... years (see text for details). Year Figure 7: Individual productivity for each predator in the trial ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Автор(ы): Constable, A.J

5. Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation

   study, the SDWBA TS pattern and frequency response behaviours at standard survey frequencies and animal ... the distribution of animal orientations. Due to the high variability of TS to realistic changes in ... 1 15 1. 15 0. 29 3 0. 36 2 20 1. 2 0. 31 9 0. 39 4 30 1. 3 0. 37 4 0 ... ) and standard deviation (5, 10, 20 and 30 degrees) of the Gaussian distribution of orientation. It ... and animal lengths are explored via a sensitivity analysis of some important parameters: number of ... seawater and the distribution of animal orientations. Due to the high variability of TS to realistic ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Автор(ы): Calise, L. and G. Skaret

6. Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia

   24 years. This is very close to the maximum age of 22.8 years calculated from Taylor's formulae ... , = 207.01 cm, K = +0.0748 and to = -0.2898. The maximum age of D. eleginoides was found to be 24 years ... . This is very close to the maximum age of 22.8 years calculated from Taylor's formulae which relates ... de Taylor qui met en rapport l'age maximum observe et la mortalite naturelle. Dans ce cas nous avons ... . eleginoides is 223 cm. Sexual maturity is reached at about 90 to 100 cm total length (TL) (9-10 years) in ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Автор(ы): Cassia, M.C

7. Management and uncertainty: the example of South Georgia

   present M=O.ll, F=0.65. Annual recruitment, as numbers at 3 years old, has fallen from some 20 ... ages over 10 years and 19% over 20 years. The short lived fish were mostly small fish like anchovy ... , and that the sustainable yield is small. A long period of protection, perhaps 20 years, would be ... 2,500 Duration of closure 5 years 10 years 20 years Transitional yields (next 10 years) 25-:40,000 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 341-353 : Автор(ы): Gulland, J.A.

8. Acoustic estimates of krill density at South Georgia, 1981 to 1998

   from year to year over that time, ranging from ≈ 2 to  ≈ 150 g m-2 (fresh mass). The 1982, 1991 and ... Acoustic surveys at South Georgia over the past 20 years suggest that krill density around the island ... years; by convention the year given refers to the year in which the season ended) BAS has conducted ... years ,90' ,982 ,9i5 ,pB ,9+ ,9s6 $6' 40% ,989 ,99' ,992 ,9@ ,9qb ,9qb ,9q6 ,992 49% Year Figure 2 ... given year is less than p - o for all years, then the year in Acoustic estimates of krill density ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 47–57 : Автор(ы): Brierley, A.S., J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson

9. A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula

   analysis, mean foraging distance for chinstrap penguins was increased by 50% (from 20 to 30 km), although ... alimentaires des manchots combinees avec la position des captures. L'analyse met en evidence le fait que le ... CCAMLR for a number of years,. especially for those predators which are restricted to land-based ... of fishing in Subarea 48.1 over the period 1988 to 1991 was highly consistent between years, and ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 99–110 : Автор(ы): Agnew, D.J. and G. Phegan

10. An assessment of toothfish in Subarea 48.3 using CASAL

    years refer to the fishing season that started in December prior to the year quoted. For example, year ... spawning take place, lasted from 1 May to 31 August. The remainder of the year (1 September to 30 ... l and year y, the CV-at-length across years (cvl) of the proportions-at-length can be estimated by ... measurements of the catch weighted by catch size. In the early years (1985–1995) only fleet-based ...

    Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 65–95 : Автор(ы): Hillary, R.M., G.P. Kirkwood and D.J. Agnew

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