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1. Low genetic diversity and temporal stability in the Antarctic toothfish (Dissostichus mawsoni) from near-continental seas of Antarctica

   locations, or between samples collected in consecutive years, were observed. These results, based on ... is restricted to the Convention Area man- aged by CCAMLR. The fishery for D. mawsoni started in the ... one genetic stock with gene flow via the Antarctic Circumpolar Current or two or more stocks ... divided into three stages, with each stage being restricted to a particular depth. In the first (shelf ... ) stage, young fish (age 0+ and 1+), with total length between 41 and 117 mm, are found during spring ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 1–9 : Autor(es): Mugue, N.S., A.F. Petrov, D.A. Zelenina, I.I. Gordeev and A.A. Sergeev

2. Australian research on Antarctic bird and seal diets

   Heard and Macquarie Islands have been collected during the last seven years. Published and unpublished ... the last seven years. Published and unpublished results are collated and summarised, and several ... paHOHaX 3aJIHBa I1PIO,l{3 H cyoaHTapKTH"4eCKHX OCTPOBOB Xep,l{ H MaKKYOpH. OnYOJIHKOBaHHhle H ... Davis Station (68°30'S:77°50'E), in the south-eastern corner of the Prydz Bay Priority Area of CEMP ... ±4.3 28 .3±1 .8 139.1±16.5 Posthatch (1985) 36.6±4.6 26.3±2.1 Location: Davis Station (68 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 231-249 : Autor(es): Williams, R.

3. Food and feeding of the mackerel icefish (Champsocephalus gunnari) around South Georgia in January/February 1991

   mackerel icefish (Champsocephalus gunnari) around South Georgia in January/February 1991 were analysed in 3 ... to 3 877) and an unrepresentative coverage of the shelf from year to year. However, two pairs of ... 16-year period of observation (Figure 3). A lower krill index in the stomachs was only observed in ... analysed in 3 877 stomachs collected at 44 stations. Both the proportion of krill (Euphausia superba) in ... janvier/fevrier 1991 ont ete analysees pour 3 877 estomacs recueillis a 44 stations. La proportion du ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 15–23 : Autor(es): Kock, K.-H., I. Everson, S. Campbell, G. Parkes, Z. Cielniaszek and J. Szlakowski

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

   weighting were investigated using haul-level estimated effective sample sizes with, additionally ... data. A key uncertainty is the number of ages fully selected by the main survey series. With all the ... Division 58.5.2), using CASAL and data consisting of multi-year random stratified trawl survey (RSTS ... was modelled as an age-structured population with 35 separate age classes, from age 1 to 35 years ... von Bertalanffy growth model that incorporates an early age (<5 years old) adjustment as described ... the exception that a common q was estimated for the early surveys (i.e. years 1990 and 1993). The ... Table 3 summarises for each population/fishery model the maximum likelihood estimates (with standard ...

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

5. Fish distribution and biomass in the Heard Island zone (Division 58.5.2)

   distribution, abundance and biology of the most important species, covering a number of years and seasons. Five ... gunnari, but total abundance varied greatly between years. Channichthys rhinoceratus has a similar ... distribution, but abundance is lower and less variable with location and between surveys. Dissostichus ... trawlable ground, and time lost through bad weather. Spring 1993 3 (3) 9 (9) 15 (15) 15 (14) 12 ... variations were not in phase with each other. Duhamel (1991a) has demonstrated a three-year cycle of ... of the most important species, covering a number of years and seasons. Five species were found to be ... varied greatly between years. Channichthys rhinoceratus has a similar distribution, but abundance is ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 1–20 : Autor(es): Williams, R. and W.K. de la Mare

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

   Subarea 48.1 seem to represent transient oscillations over a period of the order of at least 3–4 years ... and mid-1980s and the early 1990s respectively. The years 1980, 1986 and 1991 corresponded to the ... previous period, with the krill fi shery occurring in Subarea 48.2 in the fi rst half of the year. There ... 48.3, with a quasi-4-year lag between the South Shetlands, the South Orkneys and South Georgia ...

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

7. Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?

   recent years. This suggests that fishing at the trigger level would be equivalent to a long-term ... conservatively estimated subarea biomass in up to 20% of years due to high variability in krill biomass indices ... . The actual exploitation rate in each subarea has remained <3% because annual catches have been < ... ;50% of the trigger level since 1991. Comparison with the 9.3% reference exploitation rate suggests ... long-term mean in 2 of 16 years in Subarea 48.3, and 3 of 16 years in Subarea 48.1 (Fielding et al ... associated with reported catches have consistently been ≤3%, ≤1% and ≤2% for Subareas 48.1, 48.2 and 48.3 ... biomass in each subarea. The exploitation rates associated with current catches (≤3%) are low compared ... * The survey area is 65 000 km2, but the area accessible each year varies with ice coverage ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Autor(es): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins

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

   model in predicting class/bin by year frequencies is used to obtain a single, across-years, over ... , with marginal class probabilities generated using a simple age-structured model incorporating fishing ... empirical coefficient of variation (CV) in the proportions, with one being based on an existing CV model ... gave accurate estimators of an ESS that is appropriate for haul-level heterogeneity with increasing ... to 0.1544 by year 20 with a value of 0.13 at year 10.5 and recruitment was also varied lin- early ... , but in this case, declining from 196 939 for year 1 to 3 061 for year 20 with a value of 100 000 at ... distribution of π given by equation 3) and is given by Mosimann (1962, equation 7) and Johnson and Kotz (1969 ... (McCullagh and Nelder, 1989) with again the regression constant omitted. The differ- ence between Methods 3 ...

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

9. Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   test. Von Bertalanffy parameters for the pooled dataset with unsexed juveniles are L ∞ 76.12, K 0.065 ... mean total length-at-maturity (38.8 and 46.4 cm) and mean age-at-maturity (10.6 and 13.6 years) are ... work on this species. Von Bertalanffy growth models assuming different growth by sex and by year-within ... (years) 100 80 60 40 20 0 100 80 60 40 20 0 To ta l l en gt h (c m ) Figure 3: Length ... validation: the state of the art. Fish. Res., 51 (2–3): 377–383. Pearson, H.S. and H.O. Hartley. 1962 ... pooled dataset with unsexed juveniles are L∞ 76.12, K 0.065 and t0 –0.159 for males and L∞ 92.03, K ... cm) and mean age-at-maturity (10.6 and 13.6 years) are presented for males and females respectively ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 291–303 : Autor(es): Marriott, P.M., M.J. Manning and P.L. Horn

10. Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula: towards an improved understanding of off-peak census correction factors

    counts with non-standard timing. The challenge is, therefore, to correct ‘off-peak’ census counts to make ... them comparable with current standard methods. Census correction involves knowing (i) how the census is ... the peak of clutch initiation is presented and, along with a simple estimation of species-specific ... (taken as ±1 day), whereas for Method 3, the additional error arose from uncertainty associated with ... (Figure 3) show a high amount of variability, with four trendlines showing much higher rates of nest ... mean year eff year (3) where baselinesp[i] is the species-specific intercept for nest i, latj is the ... breeding is higher at more northerly sites (Bost and Jouventin, 1990a) with year-to-year variability ...

    Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 149–165 : Autor(es): Lynch, H.J., W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece

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