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1. Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea

   option (v), an example of an adjustable catch limit dependent on the results of ecosystem monitoring, the ... Paper Title:  Options for allocating the precautionary catch limit of krill among small-scale ... management units in the Scotia Sea Abstract / Description:  Following an assessment of Antarctic krill ... catch limit for krill among the SSMUs so as to preclude the inadvertent concentration of catches in a ... standing stock less predator demand for an SSMU is less than zero, then no catch limit would be allowed ... SSMU may change from year to year and that an index may have some predictive value in estimating ... catch limit in the two South Georgia SSMUs and the two Bransfi eld Strait SSMUs could vary from year ... 3 0 20 40 60 80 100 Krill biomass density (g m-2) A 1 st an d ar d d ev ia te y ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Auteur(s): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins

2. Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   Paper Title:  Species identification and age estimation for the ridge-scaled macrourid (Macrourus ... Zealand for subsequent confirmation of their identity by researchers from the National Institute of Water ... and Atmospheric Research (NIWA). Two species were found, Macrourus whitsoni and M. holotrachys. A ... methodology has yet to be validated for this species. Von Bertalanffy growth parameters were calculated from ... . holotrachys Species identifi cation and age estimation for M. whitsoni 44 Marriott et al. 0 10 20 30 ... In 1999, CCAMLR observers collected macrou- rid otoliths, for subsequent ageing, on two com- mercial ... 40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 40 45 50 55 60 Age (years) To ta l l en gt h ... to collect macrourid specimens for identifi cation. The requirements were ‘Two fi sh at random are ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Auteur(s): Marriott, P., P.L. Horn and P. McMillan

3. Use of the Leslie stock depletion model for the assessment of local abundance of Patagonian toothfish (Dissostichus eleginoides)

   Paper Title:  Use of the Leslie stock depletion model for the assessment of local abundance of ... used to examine local patterns in catch per unit effort (CPUE) in the longline fisheries for Patagonian ... in localised areas for periods of at least three days. The results suggest that there is greater ... potential for application of the model in some areas than in others, but in general there is no sufficiently ... to fisheries for D. eleginoides off the Pacific coast of Chile. An experimental approach similar to ... the 1993/94 season. This was an attempt to provide suitable data for a series of local estimates of ... for them to be modelled using the linear regression. An alternative explanation which should be ... ) since 1989. Vessels from the former Soviet Union dominated the fishery for the first three years ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 55–77 : Auteur(s): Parkes, G., C.A. Moreno, G. Pilling and Z. Young

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

   Paper Title:  Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea ... consistent with previous research. Regression equations for converting standard length to total length and ... for defining length–weight relationships were calculated and presented for both male and female fish ... determine ages and von Bertalanffy growth parameters. Fish growth was rapid for both sexes, and females ... number of opaque zones present for fish i; w = an edge interpretation correction after Francis et al ... for all other cases. An opaque zone completion date of 1 December and a spawning date of 1 February ... , despite having fewer parameters. The results of an analysis of variance comparing the two models are ... ). All of the possible prey items were in advanced stages of digestion, except for two fish eggs. One ...

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

5. A compilation of parameters for ecosystem dynamics models of the Scotia Sea – Antarctic Peninsula region

   Paper Title:  A compilation of parameters for ecosystem dynamics models of the Scotia Sea ... assessment of methods for subdividing the precautionary catch limit amongst smaller spatial units. This paper ... compiles parameters for use in the ecosystem dynamic models that are needed to assess these methods. These ... parameters include life history and krill consumption parameters for the fish, whale, penguin and seal ... derived for two seasons, cor- responding to the six months from 1 October (sum- mer) and the six months ... offspring produced per breeding adult per year. Derived krill demand estimates are for the adult portion ... mentioned in the text. Boundary area 1 Boundary area 2 Boundary area 3 5 Parameters for Scotia Sea ... for generic fi sh (equation 2). The body mass and mor- tality rates of these two taxa are very ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 1–25 : Auteur(s): Hill, S.L., K. Reid, S.E. Thorpe, J. Hinke and G.M. Watters

6. A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies

   Paper Title:  A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age ... data for Patagonian toothfish (Dissostichus eleginoides) at Heard Island (Division 58.5.2) were fitted ... aged. Subsampling of random lengthfrequency (LF) data used to obtain the samples of fish for ageing ... length-dependent selectivity function for trawl fishing and the additional effect of length-bin sampling ... – 20 year range. This translated to larger predictions for the MLPLB-fi tted curve for ages below 5 ... immigration), is an important com- ponent of the assessment approach for the HIMI fi sheries (Division 58.5.2 ... maximum likelihood theory for estimat- ing the VB parameters that is presented here is an extension of ... ed distribution with zero skew, and (ii) an exponential distribution for age- at-fi rst-capture that ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Auteur(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams

7. Investigations of required sampling regimes for environmental parameters

   monthly mean temperature over two years with a significance α of 0.05 and a power P of 0.8. Sampling wind ... Paper Title:  Investigations of required sampling regimes for environmental parameters Abstract ... speed continuously or as daily maxima and minima would be sufficient to detect a 10 to 20% change in ... temperatures in that 563 year were lower than for the other two years (see Figure 1). Maximum and minimum ... detection Wind speed daily multiple n=8 per day 10-20% High recording for one month daily multiple n-30 ... ------'~-------"--~--~------~ o 1 0 20 30 days Figure 2: Maximum daily pressure for January 1985, Davis Station, showing the ... ~--~.-------.---~-'--------~ 5 10 15 20 25 30 35 days Figure 4: Daily wind speed by three hour sampling period for January 1985 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 561–573 : Auteur(s): Agnew, D.J.

8. Length-based assessment for mackerel icefish (Champsocephalus gunnari) at South Georgia

   the given harvest control rule to set a two-year total allowable catch (TAC). One issue is the ... Paper Title:  Length-based assessment for mackerel icefish (Champsocephalus gunnari) at South ... Georgia Abstract / Description:  The current CCAMLR assessment method for mackerel icefish ... data which, in conjunction with the bootstrapped survey biomass data, yields an estimate of the ... resultant two-year TAC), will be in a length- not an age-structured paradigm. In such a length-based ... population forward for two years under a fixed harvest rate. The target harvest rate is that which ensures ... proposed method and the CMIX/GYM procedure was performed for the years 2006 to 2009. For each year, the ... these numbers forward under the given harvest control rule to set a two-year total allowable catch ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 129–137 : Auteur(s): Hillary, R.M., C.T.T. Edwards, R.E. Mitchell and D.J. Agnew

9. Revised age and growth estimates for Antarctic starry skate (Amblyraja georgiana) from the Ross Sea

   georgiana in the Ross Sea suggested that these skates initially grow very rapidly for about five years ... been generated that suggest much slower growth, greater ages-at-maturity (about 20 years compared with ... Paper Title:  Revised age and growth estimates for Antarctic starry skate (Amblyraja georgiana ... , after which growth almost ceases (Francis and Ó Maolagáin, 2005). An alternative interpretation of age ... skates having large discrepancies between the two readers. 10 20 30 R ea de r 2 , r ea di ng 4 ... from the two approaches indicate an urgent need for a validation study to identify the best one ... frequency, and dots and error bars indicate the mean and two standard errors for read- ings on the y-axis ... (years) 0 10 20 30 40 R ea de r 1 , r ea di ng 2 (y ea rs ) ( m ea n ± 2S E ) 0 10 20 ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 211–220 : Auteur(s): Francis, M.P. and M.J. Gallagher

10. Sensitivity analysis for parameters of predatory species CCAMLR Ecosystem Monitoring Program

    Paper Title:  Sensitivity analysis for parameters of predatory species CCAMLR Ecosystem Monitoring ... sensitivity analyses on existing data regarding predator breeding biology parameters, this report presents ... /88 and 1988/89 breeding seasons. The data on the following parameters were analyzed: adult weight on ... (% Current Value) (20 %) 5 5 (30%) 2 3 Sample sizes required for five years of monitoring and a = 0.10 ... Difference (d) ( 1 0 %) 34 54 (% Current Value) (20 %) 9 1 4 (30%) 5 7 Sample sizes required for five ... required for two years of monitoring and a = 0.05 (5%) 42 66 Smallest Difference (d) (1 0%) 1 2 1 9 ... . Statistical Power (P) 0.6 0.8 Sample sizes required for two years of monitoring and a = 0.05 Smallest ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 411–432 : Auteur(s): Whitehead, M.D.

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