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1. Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3

   of krill over a 20-year harvesting period from falling below 60% of its average unexploited level; subject ... that TAC reductions may prove necessary during the 20-year period considered. Simulation tests, including ... that TAC reductions may prove necessary during the 20-year period considered. Simulation tests, including ... for the simulation testing of procedures, and an operational definition of CCAMLR Article II to provide criteria ... also be considered, for example those using catch-at-Iength (or, if possible, catch-at-age) data ... during the first decade of pelagic whaling. Nature 324 (6093): 152-154. SIEGEL, v. 1987. Age and growth ... of krill over a 20-year harvesting period from falling below 60% of its average unexploited level; subject ... that T AC reductions may prove necessary during the 20-year period considered. Simulation tests, including ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Author(s): Butterworth, D.S.

2. Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed with mitochondrial and intron DNA markers

   Assessment Report, 2003/43: 27 pp. Horn, P.L. 2002. Age and growth of Patagonian toothfi sh (Dissostichus ... removed from individual fi sh sampled for routine biological analyses and fi xed in 90% ethanol. DNA ... , followed by chloroform:iso- amyl alcohol, and precipitated with 70% ethanol at –20°C (adapted from Taggart ... at –20°C. Two classes of markers, mtDNA and nuclear introns, were entre estas tres áreas marinas. La ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 43–51 : Author(s): Smith, P.J. and P.M. Gaffney

3. Editorial

   of the CCAMLR Scientific Committee. Over those 30 years, several thousand scientific papers have been presented ... striking changes over the past 30 years is the increase in the number of scientific journals in which work ... Committee. Over those 30 years, several thousand scientific papers have been presented to CCAMLR meetings ... the past 30 years is the increase in the number of scientific journals in which work of relevance to CCAMLR ... with the 30th meeting of the CCAMLR Scientific Committee. Over those 30 years, several thousand scientific ... -making by CCAMLR. One of the most striking changes over the past 30 years is the increase in the number ... as the more traditional peer-review process. The papers in this volume of CCAMLR Science broadly reflect ... of scientific journals in which work of relevance to CCAMLR is published. This is undoubtedly driven ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 167 : Author(s): Editors

4. Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)

   operating off the coast of East Antarctica (30°E–150°E; FAO/CCAMLR Divisions 58.4.1 and 58.4.2) since 2003 ... of the larger areas) being open to fishing. This paper reviews the results of this experiment and explores ... them being at about 90°E. The western stock may be centred around Prydz Bay, and appears to be of very ... with the Ross Sea, where an analytical assessment has been possible for several years, and through analysis ... by the spatial cover- age of CPUE datapoints (see Appendix 2). Mark–recapture data There were so few tag ... the spatial cover- age of CPUE data points) and fished area (Table 2; Appendix 2, Figure 2.2(k)). Note ... , and the catch limit has been reached in most years. This paper reviews the results of the experi- ment ... in Divisions 58.4.1 and 58.4.2. Fishing years extend from 1 December of the previous year to 30 November ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Author(s): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán

5. Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia

   simulation of releases by box over multiple years. The model performed as expected with test situations ... years. The model performed as expected with test situations. It produced a near-perfect estimate ... released in that and earlier years 40 W 43 3 0' W 48 0 0' W M an ag em en t A re ... S 2 0 0 0 m 1 0 0 0 msh ag W s ha g N W ge or gi a S ge or gi a E ge or gi a 20 03 20 04 Release positions ... of tags released in that and earlier years Fi gu re 1 : D is tr ib ut io n of t ag a nd ... , whilst retaining the aver- age movement for the whole of South Georgia and Shag Rocks at 10 km/year ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Author(s): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark

6. An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands using CASAL

   data. A key uncertainty is the number of ages fully selected by the main survey series. With all ... the data included in the model, age-4 and 5 fish are fully selected, whereas when the survey data have ... greater influence and without the tag data, the selectivity of these ages was reduced. The method ... exclusion of the tag data. A key uncertainty is the number of ages fully selected by the main survey series ... of the coefficient of variation (CV) for length given age, (ii) use of non-informative pri- ors for year-class ... that the CV in year-class strength (YCS – number of annual age-1 recruits relative to the median pre- fishery ... ). The maximum age was set to 35 years since the model of Candy et al. (2007) gives unrealistically high ... average length-at-age as age is increased much past 35 years because of the lack of available data ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 1–34 : Author(s): Candy, S.G and A.J. Constable

7. Estimating optimal observer coverage in the Antarctic krill fishery

   on board for about 30% of that season. They have achieved a rate of krill sampling equivalent to 18 ... , 20% of total season hauls sampled for krill and an equivalent or higher sampling proportion ... suggest that such strategies should be pursued for at least four years before the Scientific Committee ... on board for about 30% of that season. They have achieved a rate of krill sampling equivalent to 18 ... in the Results section. This allowed the relation between cover- age (reflected in values ... hauls and aver- age krill sampling per vessel of 18% of total hauls (Table A1). For the larval fish ... by-catch rate, an aver- age of 95% of observed trawls per vessel were sam- pled in 2008, yielding ... variability in larval fish occurrence in the water column (Ross et al., 2006) requires observer cover- age ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 139–154 : Author(s): Agnew, D.J., P. Grove, T. Peatman, R. Burn and C.T.T. Edwards

8. Discrimination of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) using otolith morphometrics

   of toothfish reduces. In order to improve information on the spatial distribution, age-frequency and relative ... of the two species of grenadier. Models to estimate fish length, weight and age from otolith parameters ... to improve information on the spatial distribution, age-frequency and relative importance of grenadiers ... species of grenadier. Models to estimate fish length, weight and age from otolith parameters are also ... 80 60 40 20 0 10 20 30 40 50 60 70 Age (years ... of fish age (years). ot o_ w ei gh t ( m m 2 ) 400 300 200 100 0 0 10 20 ... 30 40 50 60 70 Age (years) (c) R ou nd ne ss Age (years) 0.7 0.6 ... – 3.815e-5 oto_weight2 0.534 1.80 fish_wgt = 238.4 + 1.030 oto_weight + 0.01285 oto_weight2 0.518 327 Age ...

   Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 15–28 : Author(s): Pinkerton, M.H., C. Ó Maolagáin, J. Forman and P. Marriott

9. The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991: fishing effort distribution and interannual patterns

   8 20 1 89 0 19 79 38 6 25 6 32 1 34 4 34 9 82 5 32 1 19 6 4 51 6 19 80 ... 3 00 6 3 63 4 19 90 37 4 85 6 35 0 21 3 27 3 40 9 27 2 75 1 4 20 9 19 91 ... .2 B M R T A 0 7 61 15 3 20 6 0 22 80 36 17 4 21 4 88 0 70 35 1 14 ... 0 0 0 0 0 0 0 91 7 1. 8 R T M S 92 86 30 4 39 6 20 6 20 2 11 6 89 31 7 49 9 48 4 99 ... from 1977 to 1991 was 50 086 vessel-days fished, in Subareas 48.3 (45% of the total for the period ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 1–13 : Author(s): Litvinov, F.F., V.A. Sushin, G.A. Chernega and O.A. Berezhinsky

10. Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica

    340–360 mm total length (TL) and about 3–4 years of age, and that 95% were mature at about 370–400 mm ... TL and 6–8 years of age. Counts of growth zones in sectioned otoliths were used to determine ages ... a significantly larger mean asymptotic maximum size than males. Maximum ages of 8 and 11 years were obtained ... ;360 mm total length (TL) and about 3–4 years of age, and that 95% were mature at about 370&ndash ... ) and about 3–4 years of age, and that 95% were mature at about 370–400 mm TL and 6–8 years of age. Counts ... maximum size than males. Maximum ages of 8 and 11 years were obtained for male and female fish ... and 3–4 years of age, while 95% are mature at 370–400 mm TL and 6–8 years of age. Females appear to mature ... = 0.21; κF = 0.09), with male fish growing more rapidly than females. Maximum ages of 8 and 11 years ...

    Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 139–165 : Author(s): Sutton, C.P., M.J. Manning, D.W. Stevens and P.M. Marriott

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