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1. Modelling variability and estimating power to detect change in Adélie penguin fledgling weights

   . The statistical models were developed from first principles and incorporated both within- and between-year ... or decrease after an impact. Fledgling weight was found to decline through the fledging period each year ... , but there was no evidence that the rate of decline differed between years. A consequence of this finding is that it may ... be possible to simplify future monitoring, such that fledgling weight is measured at a single time each year ... and the limited gain from weighing more than 30 birds each year. This is the case for both one- and two-tailed ... 3 years 4 years 5 years b) 50 birds % change 0 4 8 12 16 20 0.0 0.2 0.4 0.6 0.8 1.0 c) 30 birds ... from 12 split-year breeding seasons (1990/91 to 2001/02) which com- mence in October of one year ... for years 1994/95 and 1997/98, and in years 1990/91 and 1999/2000 data were obtained in only one five-day ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 191–200 : Author(s): Emmerson, L.M., C. Southwell and J. Clarke

2. A proposed management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

   for this resource. The MP uses two data sources: the recent trend in longline CPUE and the mean length ... uses two data sources: the recent trend in longline CPUE and the mean length of the catches made. An MP ... for current abundance, and one that reflected a status intermediate between these two extremes. The implicit ... ) and (A1.30)) for longliners, ',y C  is the catch-at-length  for longliners in year ... a 20-year period, and in particular the following four statistics which were intended to capture key ... the reference set OMs. The probability of Bsp falling below 20% of Ksp within the 20-year projec- tion period ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 33–69 : Author(s): Brandão, A. and D.S. Butterworth

3. Acoustic data analysis and models of krill spatial distribution

   . The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales smaller than 1 km ... distribution of krill biomass is bimodal and appears to be the mixture of two log normal distributions ... . These two distributions may correspond to the between and within patch biomass. These results of data ... . The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales smaller than 1 km ... 4-5.HHBap.H 1987 r., HCnOJIb30BaHbI B Tpex THnax onHCaHH$l npocTpaHcTBeHHoM arpera~HH KPHJI$l: cneKTpaJIbHOM ... KPHJI$l. B .l{Hana30He 2-20 KM cneKTp BOJIHOBbIX q,flceJI HanOMHHaeT OeJIbIM llIYM, XOT ... ) and one third (33%) to a second log normal distribution (mean=1.76, SO=0.51). These two distributions may ... . The most probably frequency distribution of animal swarm size is the one that maximized the entropy ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 311–329 : Author(s): Morin, A., A. Okubo and K. Kawasaki

4. Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution

   variation across years in one of the selectivity function parameters and similarly for the mortality rate ... systematic or random variation across years in one of the selectivity function parameters and similarly ... year is important for such assessments, and this issue is studied using simulation. Between-haul ... heterogeneity within fishing year was simulated using samples from the Dirichlet-multinomial (D-M) distribution ... . These perturbations consisted of either systematic or random variation across years in one of the selectivity ... across years in one of the selectivity function parameters and similarly for the mortality rate ... obtained from the integer values of year, y, so that for a 20-year simulation period y’ = y – 10 ... model A simulation model consisted of simulating 100 replications of a series of 20 fishing years ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Author(s): Candy, S.G

5. Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01

   ), and in March 2001 (late-season). The surveys were the first in a newly planned five-year series of observations ... surveys in one season would provide information on short-term variability that could be used to set data ... and southwest of the island. Together these surveys provided temporally and spatially extensive coverage around ... with observations from previous years, krill density in the western box in the mid-season survey was less than ... 95% confi dence limit fell below about 15 g m-2 in any year, that year could be considered one ... planned fi ve-year series of observations designed to complement and extend an existing time series ... 1980s). We hoped that conducting several surveys in one season would provide information on short-term ... , examined boxes to the north, northeast and southwest of the island. Together these surveys provided ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Author(s): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst

6. A declining trend in the abundance of Notothenia rossii marmorata and Notothenia gibberifrons observed in fjords in two sites in the South Shetland Islands

   gibberifrons observed in fjords in two sites in the South Shetland Islands Abstract / Description:  A declining ... in two sites in the South Shetland Islands (Subarea 48.1), is analyzed by a nested ANOVA and demonstrated ... de Mayo I., over a period of eight years from 1983 to 1990 and in waters around Half-Moon I., Moon ... by this method did not utilize a consistent amount of effort between years, the analysis made use of standardized ... OF NOTOTHENIA ROSSII MARMORATA AND NOTOTHENIA GIBBERIFRONS OBSERVED IN FJORDS IN TWO SITES IN THE SOUTH ... of Notothenia rossii marmorata and Notothenia gibberifrons in fjords in two sites in the South Shetland ... of eight years from 1983 to 1990 and in waters around Half-Moon 1., Moon Bay, in 1989. The analysis ... a consistent amount of effort between years, the analysis made use of standardized catch data by expressing ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 263–274 : Author(s): Barrera-Oro, E. and E. Marschoff

7. Long-term monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)

   is confirmed by the present analysis. Results are compared for one- and two-year-old krill (R1 and R2 ... variability of krill recruitment is confirmed by the present analysis. Results are compared for one- and two ... for the Elephant Island area with regard to the representativeness of the study area (60°-62 o 30´S and 53 o-57 ... o 30´W) for proportional recruit and density indices. Proportional recruitment indices were re ... analysis. Results are compared for one- and two-year-old ]30'm.ur. H 53"-57'30'3.n.) an2 sbrwcnewax HHaeKcoe nponopqMoHanbHoro ... the distributions of the two juvenile stocks and therefore data from south of 62'30's are not included ... . The R , recruitment value is the proportion of l-year-old animals in the population in that year. 111 a few cases ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 19–35 : Author(s): Siegel, V., W. de la Mare and V. Loeb

8. Standardization of fishing effort for Champsocephalus gunnari in the South Georgia area (Subarea 48.3)

   different classes (countries, types of vessel, fishing gear, months and years). Multiple regression is used ... . File:  20-Gasiukov.pdf ... of vessel, fishing gear, months and years). Multiple regression is used to solve the model and the resultant ... (1), if the respective indices are substituted. Having selected 'year of fishing' as a type of category, one may ... that for the first two years of this period, data on fishing effort were scanty. The whole of the commercial ... and years). Multiple regression is used to solve the model and the resultant yearly standardized CPUE ... Champsocephalus gunnari B lIo~patioHe 48.3 6bIJI nOJIYQeH nYTeM HCnOJIb30BaHH5.I MYJIbTHnJIHKaTHBHoti MO~eJIH ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 327–336 : Author(s): Gasiukov, P.S.

9. Champsocephalus gunnari stock status in the South Georgia area

   intensity was F 0.1. In the first two cases TAC=25-30 thousand tonnes and stock size does not change ... fishing intensity was F0.1. In the first two cases TAC=25-30 thousand tonnes and stock size does ... . The recruitment was taken at the lowest possible level for all these years (400 million specimens). Catch-per-unit ... . The recruitment was taken at the lowest possible level for all these years (400 million specimens). Catch-per-unit ... HCnOJIb30BaHHOH B nOCJIe,llHee BpeM51 BeJIH'-IHHe 3anaca H ,lla)l{e npH HaHHH3WHX YPOBH51X nOn ... . T H 6bICTPbIH POCT ,lI0 OKOJIO 220 TbIC. T B ce30H 1982/83 r. 3aTeM On5.lTb pe3Koe CHH)l{eHHe ,lI0 63 TbIC ... YCJIOBH5IX (HaHMeHhWa5I l.IHCJIeHHOCTh nOnOJIHeHH5I - 400 MJIH. 3K3.) H OllY=29,2 TbIC. T B ce30H 1988/89 ... 0,35 1,44 1,69 5,75 10,11 0,35 0,53 059 1,26 3,40 60.00 100.90 129.30. 67.20 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 1-18 : Author(s): Borodin, R. and P. Kochkin

10. A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia

    . Using ANOVA, we compared data obtained from the two structures to test the hypothesis that otoliths ... . For scales, bias occurred for both readers between readings; for otoliths, only one reader was biased ... . Residual variances indicated one reader was relatively more precise than the other in estimating age using ... otoliths, but less precise using scales. This reflected the comparative experience of the two readers ... and a much less productive fishery. Sustainable exploitation rates should have been 20-30% of that based ... , so that the outer annulus was counted as one year if the fish was taken after 1 July but not before ... the use of otoliths and scales in estimating tootlifish age 0 10 20 30 40 50 10 20 30 40 50 Reader ... . Using ANOVA, we compared data obtained from the two structures to test the hypothesis that otoliths ...

    Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Author(s): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson

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