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1. A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data

   hence a multi-year mark-recapture tagging program was initiated by New Zealand fishing vessels in 2001 ... mark-recapture tagging program was initiated by New Zealand fishing vessels in 2001, and tagging has ... by comparing longline catch rates between vessels in the RSR and vessels in other toothfish ... ). A pilot mark- recapture program was initiated by New Zealand vessels in 2001 and after the ... subsequent recapture of several tagged fish, the program was expanded by CCAMLR to become a requirement of ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Author(s): Mormede, S., A. Dunn and S.M. Hanchet

2. Fitting Euphausia superba into Southern Ocean food-web models: a review of data sources and their limitations

   southwest (SW) Atlantic sector is a major scale of variability, driven by sea-ice and climate effects on ... sector is a major scale of variability, driven by sea-ice and climate effects on recruitment. This ... not affected by sea-ice. This survey design misses four additional com- ponents of krill habitat. The ... ’ to acoustics and often not prop- erly sampled by nets either. Large-scale analyses of length ... ,  albeit in  krill ‐r ich parts of kril l’s  range Krill  in 0‐10 m l ayer missed by acoustic surveys ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Author(s): A. Atkinson, S. Nicol, S. Kawaguchi, E. Pakhomov, L. Quetin, R. Ross, S. Hill, C. Reiss, V. Siegel, G. Tarling (submitted to the 2008 Joint CCAMLR-IWC Workshop)

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

   very low productivity. Estimates of average biomass were made by comparison of standardised catch rates ... Prydz Bay, and appears to be of very low productivity. Estimates of average biomass were made by ... critical that spatial variations in catch rate are accommodated. This is generally dealt with by spa ... for each stratification as density multi- plied by area size. In the analysis presented here, a ... pre-processed by New Zealand scientists to eliminate errors in the dataset. Although only ...

   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

4. Assessing the power to detect systematic change in Adélie penguin foraging trip duration

   greater in the crèche stage than the guard stage. The gain obtained by increasing the number of penguins ... . Power to detect change was greater in the crèche stage than the guard stage. The gain obtained by ... included years, mating pair membership, gender, penguins and trips. Foraging trips by Adélie penguins at ... Béchervaise Island are characterised by many short trips, inter- spersed with a variable number of longer ... of data on the logarithmic scale has been recommended by the CEMP Subgroup on Statistics (SC-CAMLR ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Author(s): Southwell, C., J. Clarke and L.M. Emmerson

5. Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill

   model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ... 48.1, 48.2, 48.3 and 48.4) is limited by a trigger level of 620 000 tonnes until a procedure for ... criteria. From the early 1990s until 2009 the catch by the Antarctic krill fishery remained around 120 ... all areas regulated by CCAMLR is over 40 times the current catch (Nicol et al., 2012). Recent ... yield model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Author(s): Kinzey, D., G. Watters and C.S. Reiss

6. Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001

   appraised by comparing them with krill catches obtained under various hydrological conditions. In comparison ... appraised by comparing them with krill catches obtained under various hydrological conditions. In ... could be verifi ed only by comparing forecasts with actual krill catches for a number of years. The ... guration of isotherms. The 0ºC isoline on maps of SST anomalies moved northward by 4–5° latitude from ... demonstrated by comparing maps of SST differences in January 2001 and January 1991 (Figure 2). In January ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Author(s): Vanyushin, G.P

7. Trends in population size and breeding success at colonies of macaroni and rockhopper penguins, Marion Island, 1979/80–1995/96

   success of macaroni penguins may be influenced by a wider-scale phenomenon than is applicable to ... macaroni penguins may be influenced by a wider-scale phenomenon than is applicable to rockhopper penguins ... various colonies suggest that this proportion may be influenced by environmental conditions before, or ... penguins from counts of breeders may be complicated by a variable annual proportion of breeders. For this ... al. success of macaroni penguins may be influenced by a wider-scale phenomenon than is the case ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 89–103 : Author(s): Cooper, J., A.C. Wolfaardt and R.J.M. Crawford

8. A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem

   Antarctic is summarised briefly, and the central role played by krill emphasised. The background to the ... , whales, fish and krill in the Antarctic is summarised briefly, and the central role played by krill ... taken from the end of the 18th century, followed by whales at the start of the 20th century. More ... at South Georgia by 18221 (peaking in about 1800 when 112 000 skins were collected) and this ... for the sealers, and by 1830 the fur seal population there had also almost been exter- minated ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Author(s): Mori, M. and D.S. Butterworth

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

   . The section headings state the questions, and the answers present any evidence available from the primary ... . (2002). The section headed ‘Is current management precautionary for the krill stock?’ pre- sents ... ) and, therefore, limiting the scope of the current assessment. The section headed ‘Is current management ... , which are discussed in the section headed ‘Is the krill stock declining?’, also suggest that krill ... exploitation rate (annual catch divided by biomass) of <7%, which is below the 9.3% level considered ...

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

10. 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

    growth model. Formulae for adjusting predictions for bias imparted by the use of the Fabens model were ... imparted by the use of the Fabens model were developed and showed that the bias is relatively small for ... tted to length– age data obtained by sampling fi sh from hauls, measuring their length and then ... removing an oto- lith or other hard part in order to determine age by counting the number of annual growth ... estima- tion has been studied by Troynikov (1999), Lucena and O’Brien (2001), Taylor et al. (2005) and ...

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

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