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1. A summary of the commercial fishery for mackerel icefish Champsocephalus gunnari in Subarea 48.3 during the 1997/98 season

   , fished commercially for mackerel icefish at South Georgia (Subarea 48.3) using a midwater trawl for ten ... hauls. 67% of this catch was taken in just two hauls, confirming the patchy distribution of this species ... . Most of the catch was made up of fish between 22 and 30 cm long. Fish of this size range have ... previously been shown to be ages two and three. The catch of species other than C. gunnari amounted to only ...

   Meeting Document : WG-FSA-98/53 : Auteur(s): G. Parkes, A. King and C. Jones (United Kingdom)

2. Continuation in the 2014/15 season of the research plan initiated in 2012/13 for stocks of Dissostichus spp. in Divisions 58.4.1 and 58.4.2

   Abstract:  In the 2012/13 fishing season Spain began implementing a multi-annual Research Plan for ... Divisions 58.4.1 and 58.4.2 in order to estimate local biomass of Dissostichus spp. by means of two methods ... : depletion and tagging. This research will continue in the 2014/15 season if ice conditions allow for the ... (58.4.1H, G, D and C). Two research surveys have been already implemented in Division 58.4.1 and ...

   Meeting Document : WG-SAM-14/09 : Auteur(s): Delegation of Spain

3. Alternative assessment methods for toothfish at South Georgia

   Abstract:  We examine two alternatives to the survey recruitment/GY method for estimating ... toothfish abundance. An age structured production model (ASPM) is constructed and tuned to the CPUE series ... CPUE that actually has been seen since 1996. Fitting the model to partial CPUE series, or assuming an ... usefulness of tagging data to estimate population size. We use two equations, the Jolly-Seber unbiased method ...

   Meeting Document : WG-FSA-SAM-04/17 : Auteur(s): Kirkwood, G., Payne, A., Agnew, D.

4. Continuation in the 2015/16 season of the research plan initiated in 2012/13 for stocks of Dissostichus spp. in Divisions 58.4.1 and 58.4.2

   Abstract:  In the 2012/13 fishing season Spain began implementing a multi-annual Research Plan for ... Divisions 58.4.1 and 58.4.2 in order to estimate local biomass of Dissostichus spp. by means of two methods ... recovery, as well as, to progress research in these SSRUs (58.4.1H, G, D and C). Two research surveys have ... :  Continuation in the 2015/16 season of the research plan initiated in 2012/13 for stocks of Dissostichus spp. in ...

   Meeting Document : WG-SAM-15/02 : Auteur(s): Delegation of Spain

5. Improvements to the multiple-frequency method for in situ target strength measurements

   transducer. Tolerances for matching target positions at two or more frequencies were determined to be ±0.5 m ... synchronized signals from two or more adjacent split-beam transducers of different frequencies which are not ... for in situ target strength measurements Approval:  Approved ...

   Meeting Document : WG-EMM-99/38 : Auteur(s): D.A. Demer (USA) and M.A. Soule (South Africa)

6. 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

7. 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

8. Fishery Report 2014: Exploratory fishery for Dissostichus spp. in Subareas 88.1 and 88.2

   Description / Abstract:  Fishery Report 2014: Exploratory fishery for Dissostichus spp. in ... . Spawning fish may remain in the northern area for up to two or three years, although this pattern may be ... discounting the first two years’ 20 data (which are likely to be unrepresentative because ... to 30 November 2014). Fishery Report 2014: Exploratory fishery for Dissostichus spp. in ... includes 20 tonnes for research fishing in 2007 and 10 tonnes for research fishing in 2011 and 2012. * IUU ...

   Document : Site Section: Publications

9. Fishery Report 2013: Exploratory fishery for Dissostichus spp. in Subareas 88.1 and 88.2

   Description / Abstract:  Fishery Report 2013: Exploratory fishery for Dissostichus spp. in ... 30 November 2013). FISHERY REPORT 2013: EXPLORATORY FISHERY FOR DISSOSTICHUS SPP. IN ... Ridge to start the cycle again. Spawning fish may remain in the northern area for up to two or three ... regain condition before spawning. 30. Analysis of the genetic diversity for D. mawsoni from Subareas ... . mawsoni otoliths collected by observers from New Zealand vessels have been selected for ageing each year ...

   Document : Site Section: Publications

10. 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.

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