Resultados de la búsqueda
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Research plan for the exploratory fisheries for Dissostichus spp. in Subarea 48.6 in 2014/15
the latest CCAMLR C2 and observer data toward the development of research plan for the 2014/15 ... exploratory fishery of toothfish in Subarea 48.6. The stock sizes for five research blocks (486_1, 486_2 ... , 486_3, 486_4 and 486_5) were estimated by the Petersen estimator and the CPUE x seabed analogy method ... using effective data on tagging experiment and appropriate reference areas for the CPUE method ...
Meeting Document : WG-SAM-14/01 : Autor(es): Delegation of Japan
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Modelling Southern Ocean krill population dynamics: biological processes generating fluctuations in the South Georgia ecosystem
Abstract: Variability is a key feature of the pelagic ecosystems of the Southern Ocean and an ... important aspect of the variation is fluctuation in the abundance of krill, the major prey item of many of ... the higher predators. Direct impacts of variability in the large-scale physical environment, such as ... changes in ocean circulation, have been suggested as the main factor generating the observed fluctuations ...
Meeting Document : WG-EMM-01/53 : Autor(es): E. Murphy and K. Reid (United Kingdom)
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BIOLOGICAL PROSPECTING IN THE SOUTHERN OCEAN, A ROLE FOR CCAMLR
Abstract: The issue of bioprospecting has been a constant item on the agenda of ATCM since 2003 ... . Last June, ATCM XXXI discussed the report from an Intersessional Contact Group (ICG) that was ... established to examine the issue of Biological Prospecting in the Antarctic Treaty Area. Although increasingly ... used in International legal and policy frameworks addressing genetic resources, the term bioprospecting ...
Meeting Document : CCAMLR-XXVII/BG/36 : Autor(es): Submitted by IUCN
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Biomass abundance and distribution of fish in the Kerguelen Islands’ zone (Division 58.5.1)
(September-October 2006) off the Kerguelen Islands (division 58-5-1), the northern part of the Kerguelen ... Plateau. The sweep-area method was used in the range 100 and 1000 m with random stratified stations of ... bottom trawling. Estimations of biomass and abundance are provided for eight commercial species. The ... total biomass reaches 245 000 tonnes and the Patagonian toothfish Dissostichus eleginoides produces half ...
Meeting Document : WG-FSA-07/16 : Autor(es): G. Duhamel and M. Hautecoeur (France)
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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 : Autor(es): Zh.A. Frolkina and I.A. Trunov (Russia)
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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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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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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 : Autor(es): I. Ball and A.J. Constable (Australia)
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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 : Autor(es): A.J. Constable (Australia)