Résultats de la recherche
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Preliminary assessment of Champsocephalus gunnari on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002
58.5.2 in the vicinity of Heard Island in May 2002 to provide the information for an assessment of yield ... in the 2002/2003 CCAMLR season. This paper provides a preliminary assessment of yield using the ... assessment methods of CCAMLR and discusses the implications of these results in relation to previous CCAMLR ... assessments. The estimate of biomass of mackerel icefish for the population at Heard Island was not ...
Meeting Document : WG-FSA-02/47 : Auteur(s): A.J. Constable, R. Williams and T. Lamb (Australia)
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COMPARISON OF THE PRECISION OF DIRECT VERSUS AGE LENGTH KEY METHODS OF ESTIMATING CATCH-AT-AGE PROPORTIONS
) of fish in the catch, determining the ages in the sample, and calculating proportions in each age ... class. This “direct” method can be replaced by the age length key (ALK) method if there are in addition ... to the SRS of ages, which have also been measured for length (the age-length sample), a large SRS ... where fish are measured only for length and tallied by length bins (the LF sample). The ALK method uses ...
Meeting Document : WG-FSA-09/22 Rev. 1 : Auteur(s): S.G. Candy (Australia)
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Features of chronology and breeding success of Pygoscelis papua and Pygoscelis adeliae penguins in the Wilhelm Archipelago (CCAMLR Subarea 48.1)
Abstract: We aim to investigate the qualitative changes in the habitats of two most common ... species penguin populations in the Wilhelm Archipelago Pygoscelis papua (gentoo) and Pygoscelis adeliae ... (Adelie) penguins in the CCAMLR Subarea 48.1 under the impact of climate changes and krill fishery. To ... minimize the effect of human disturbance on the breeding success and survival of chicks and avoid ...
Meeting Document : WG-EMM-18/P13 : Auteur(s): I.V. Dykyy, G.P. Milinevsky, O.L. Savitsky, D.G. Lutsenko, P.B. Khoetsky, M.F. Veselsky, V.M. Smagol, A.O. Dzhulay, J.V. Tsaryk, K.M. Nazaruk, A.T. Zatushevsky, A.O. Simon and M.A. Telipska
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Modifications to the Generalised Yield Model in 2004, version GYM501E.EXE
Abstract: The Generalised Yield Model is used by the WG-FSA in the assessments of Champsocephalus ... gunnari, Dissostichus eliginoides and Euphausia superba. Its current version is GYM501D.EXE. In the course ... of reviewing the methods for estimating the time series of recruitments of D. elegionoides for WG-FSA ... in 2004 an error in the calculation of the recruitment series from survey data was detected. This ...
Meeting Document : WG-FSA-04/91 : Auteur(s): A.J. Constable (Australia)
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Population structure of icefish (Champsocephalus gunnari) in the South Georgia area (Antarctic)
Abstract: The living conditions of Champsocephalus gunnari in the eastern, western shelf areas of ... South Georgia and at Shag Rocks are different. The length-age structure of C.gunnari groupings ... inhabiting the areas at Shag Rocks and South Georgia is characterized with the lack of fish below 11 cm in ... length and older than 6-7 years (10-11 years in the South Georgia area) and considerably lower number of ...
Meeting Document : WG-FSA-04/40 : Auteur(s): Zh.A. Frolkina and I.A. Trunov (Russia)
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Developing integrated assessments for Dissostichus eleginoides based on the CCAMLR precautionary approach
Abstract: This paper describes a possible method for implementing the precautionary approach in ... current biomass and age structure. Consideration is given to its application to the assessment of ... Dissostichus eleginoides in Division 58.5.2. CASAL and GYM are key elements in the implementation described in ... this paper but the methodology is laid out in such a way that alternative software solutions could be ...
Meeting Document : WG-FSA-SAM-05/16 : Auteur(s): I. Ball and A.J. Constable (Australia)
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EFFECT OF STERN-SETTING TUNNEL ON THE SINK RATE OF INTEGRATED WEIGHT LONGLINE (IWL)
stern-setting tunnel, and the proposed experimentation to evaluate this method's effect on the sink ... rate of demersal integrated weight longline (IWL). The stern setting tunnel consists of an elongated ... steel tube, built in to the longliner during a dry-dock refit. The tube angles downwards from where the ... line exits the baiting machine, which is positioned in the aft section of the stern setting deck, to ...
Meeting Document : WG-FSA-08/38 : Auteur(s): I. Hay and G. Robertson (Australia)
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Preliminary investigations into a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region
Abstract: In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... status for Antarctic toothfish in the Amundsen Sea Region (ASR- Subarea 88.2 SSRUs 88.2C-H) and ... noted that the assessments were unable to fit the patterns in the recaptures of tagged fish seen in SSRU ... 88.2H. As a consequence, WG-SAM requested further runs be carried out with emigration estimated in the ...
Meeting Document : WG-FSA-14/57 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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The Ross Sea, Antarctica, where all ecosystem processes still remain for study
Abstract: The Ross Sea is a well-defined embayment of Antarctica about the size of southern ... Europe, bounded by Victoria Land to the west; King Edward VII Peninsula, Marie Byrd Land, to the east ... ; the Ross Ice Shelf to the south; and the Southern Ocean, Pacific Sector, to the north. Its waters are ... composed of two related biotic systems: the Ross Sea Shelf Ecosystem (RSShE) and the Ross Sea Slope ...
Meeting Document : WG-EMM-02/60 : Auteur(s): D. Ainley (USA)
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002
58.5.2 in the vicinity of Heard Island in May 2002 to provide the information for an assessment of long ... -term annual yield in the 2002/2003 CCAMLR season and beyond. This paper provides a preliminary ... assessment of yield using the assessment methods of CCAMLR, a summary of which is presented here. The ... estimate of biomass of juvenile Patagonian toothfish in the vicinity of Heard Island was similar to the ...
Meeting Document : WG-FSA-02/70 : Auteur(s): A.J. Constable, R. Williams and T. Lamb (Australia)