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1. Examination of the characteristics of the fishery for Dissostichus eleginoides in the CCAMLR Statistical Subarea 48.3 and its implications on estimating trends in catch per unit effort

   eleginoides in Subarea 48.3. We concentrate on presenting the results of preliminary work on the potential ... effects of changing fishing patterns on the standardisation of the CPUE time series. We consider whether ... the spatial pattern of fishing might have changed over the years, whether the current measure of ... fishing effort (number of hooks on a line) has changed in its fishing properties over time, and if soak ...

   Meeting Document : WG-FSA-SAM-05/17 : Автор(ы): A.J. Constable, S.G. Candy and B. Raymond (Australia)

2. Accounting for food requirements of seabirds in fisheries management – the case of the South African purse-seine fishery

   bergii. Availability of prey is thought to influence the populations of these species, but their food ... requirements have not been accounted for in management of the purse-seine fishery on sardine and anchovy. Means ... of identifying and attaining target populations of predators that are dependent on forage fish prey ... conservation status of a species may prove useful in determining minimum viable populations, and that the use ...

   Meeting Document : WG-EMM-04/28 : Автор(ы): R.J.M Crawford (South Africa)

3. Theoretical considerations for estimating the density of cohorts and mean recruitment of Patagonian toothfish (Dissostichus eleginoides) based on research trawl survey data

   assessing the long-term yield for toothfish fisheries in CCAMLR uses estimates of density of juvenile ... toothfish derived from research trawl surveys as an estimate of absolute abundance of recruitment to the ... fishery. At the 2003 meeting of WG-FSA a number of inconsistencies were identified in the estimation of ... the recruitment series for Subarea 48.3. In light of this, the Scientific Committee agreed that there ...

   Meeting Document : WG-FSA-04/92 : Автор(ы): C.R. Davies, E.M. van Wijk and A.J. Constable (Australia)

4. Maximum entropy reconstruction of stock distribution and inference of stock density from line-transect acoustic survey data

   distribution from acoustic line-transect data. MaxEnt is founded on the bedrock of probability theory and ... allows the most efficient possible use of known data in the inference process. The method takes explicit ... account of spatial correlation in the observed data and seeks to reconstruct a distribution of density ... maximized. The method is iterative and uses the Bayesian approach of evaluating the posterior probability of ...

   Meeting Document : WG-EMM-02/35 : Автор(ы): A.S. Brierley, S.F. Gull and M.H. Wafy (United Kingdom)

5. Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program

   Abstract:  A potential method is presented for combining data collected as part of the CCAMLR ... ecosystem monitoring program (CEMP) into a single index for each of predator, prey and environmental ... parameters. The paper is divided into four main parts. The first part develops the proposed method of forming ... summary indices, which is based on the usual theory of multivariate statistics and takes into account the ...

   Meeting Document : WG-EMM-00/14 Rev. 1 : Автор(ы): W. de la Mare and A. Constable (Australia)

6. OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION

   resulting from the imprecision of age determination using annual ring counts from otoliths. This paper ... assessment using repeat readings by 4 readers of a set of 203 reference otoliths sampled from the HIMI ... fishery. The methods of sampling, preparing, reading, and modelling random reader error for this reference ... set of otoliths is described. A total of 933 readings were taken and errors were defined as the ...

   Meeting Document : WG-FSA-09/21 : Автор(ы): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)

7. OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION

   resulting from the imprecision of age determination using annual ring counts from otoliths. This paper ... assessment using repeat readings by 4 readers of a set of 203 reference otoliths sampled from the HIMI ... fishery. The methods of sampling, preparing, reading, and modelling random reader error for this reference ... set of otoliths are described. A total of 933 readings were taken and errors were defined as the ...

   Meeting Document : WG-SAM-09/07 : Автор(ы): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)

8. Some specific characteristics of Dissostichus eleginoides biology in the vicinity of the Kerguelen Islands (Division 58.5.1)

   Abstract:  For recent years Dissostichus eleginoids is the main target species of trawling and ... long-line fisheries in the vicinity of the Kerguelen Islands. Results of research made by the author on ... present paper. Regular direct distribution of size groups D. eleginoides in depth range within the fishing ... area on the northern slope of shelf was revealed. Difference in feeding spectrum of these groups was ...

   Meeting Document : WG-FSA-96/16 : Автор(ы): Pshenichnov, L.K.

9. Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons

   Abstract:  Data collected from the FN American Champion during Phases 1 and 2 of the experimental ... generalized additive models show that the density of fishable P. spinosissima is highest off the northern ... coast of South Georgia and at depths between about 100 and 300 fathoms. The Phase 1 results suggest that ... it would not be appropriate to extrapolate local estimates of abundance to the whole of Subarea 48.3 ...

   Meeting Document : WG-FSA-96/34 : Автор(ы): Watters, G.

10. CCAMLR ecosystem monitoring program standard methods: determination of sex of Adelie penguins

    Abstract:  The suggestion that sex of Adélie penguins, Pygoscelis adeliae, might be assigned by ... observing which member of the pair (the male) takes the first long incubation shift (Anon. 1991) was ... examined for each of the 1990–91, 1991–92 and 1992–93 breeding seasons. There was an 8- or 9-day period ... when more than 90% of the incubating birds were male and a 6- or 7-day period when more than 90% of the ...

    Meeting Document : WG-CEMP-94/08 : Автор(ы): K.R. Kerry, J.R. Clarke and G.D. Else (Australia)

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