Résultats de la recherche
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Demography of Antarctic krill in the Lazarev Sea (Subarea 48.6) in the 2005/06 season
Abstract: A standardized krill net sampling survey was conducted in the Lazarev Sea (Subarea 48.6 ... ) in December 2005. Krill densities were low in the Lazarev Sea. No substantial day/night differences ... were observed in the catches. Spatial distribution of krill density and size/age classes is discussed ... maturity stages in the early phase of the spawning season. Author(s): V. Siegel (Germany) Title ...
Meeting Document : WG-EMM-06/10 : Auteur(s): V. Siegel (Germany)
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Comparison of temperature situation near South Georgia in December–February, 1989–1990, 1990–1991, 1999–2000 and 2000–2001 on satellite data and information about krill catches in Subarea 48.3
Abstract: Monitoring of the sea surface temperature (SST) in Subarea 48.3 on satellite data (GOES ... -E, Meteosat), use of in situ data and the further analysis of the SST maps, maps of the SST ... anomalies and dynamics provide strictly special, but constant information on hydrological situation in the ... survey area. Analysis of this situation based on data obtained in expeditions, as well as literature and ...
Meeting Document : WG-EMM-01/11 : Auteur(s): G. Vanyushin (Russia)
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Seasonal and interannual variability of krill, salp and other zooplankton populations in the northwest Antarctic Peninsula region: summer 2001 in relation to the Long-Term AMLR Data Set
Abstract: The US AMLR Program conducted large area surveys in the Elephant Island-South Shetland ... assess seasonal variations in distribution, abundance and demography of Antarctic krill (Euphausia ... field seasons to assess interannual variations. Mean and median krill abundance values in the Elephant ... Island area during the 2000/2001 field season were intermediate to highs in 1996 and lows in 1999 ...
Meeting Document : WG-EMM-01/45 : Auteur(s): V. Loeb (USA)
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Data from recent trawl surveys in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), reveal an unusual cohort structure in the mackerel icefish (Champsocephalus gunnari) population
Abstract: Surveys of mackerel icefish, Champsocephalus gunnari, was undertaken in Division 58.5.2 ... in the vicinity of Heard Island during September 2010 and April 2011, to provide information on the ... population dynamics of this species, and to provide a basis for an assessment of short-term annual yield in ... Division 58.5.2 to the west of 79o 20’ E using standard CCAMLR methods. A predicted in 2010, the strong 4 ...
Meeting Document : WG-FSA-11/22 : Auteur(s): D.C. Welsford (Australia)
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Perfluorinated compounds in muscle tissues of Antarctic toothfish in Division 58.4.1 and 58.4.2 of Antarctic Sea
Abstract: We measured concentrations of 15 perfluorinated compounds (PFCs) in muscle tissues of ... Antarctic toothfish (n=113), and investigated accumulation patterns of PFCs in female and male muscles. The ... total PFCs (Σ 15 PFCs) were ND (not detected) to 2.98 ng/g wet weight (ww) in muscle tissues with 0.32 ... and female. The levels of PFCs in the present study are comparable to those reported in 31 fish ...
Meeting Document : WG-FSA-16/07 : Auteur(s): Delegation of the Republic of Korea
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Estimates of local biomass, including estimates of uncertainty, for Antarctic (Dissostichus mawsoni) and Patagonian (Dissostichus eleginoides) toothfish in research blocks in Subareas 48.2, 48.6, 58.4 and 88.3
analysis includes Research Blocks in Subareas 48.2, 48.6, 58.4 and 88.3. Given the changes in CPUE-by ... -seabed area method parameter values that were agreed at WG-SAM-17, the estimates of biomass in the ... higher CPUE-by-seabed area estimates has also resulted in a greater overlap in confidence intervals with ... the Chapman estimates in some, but not all, of the Antarctic toothfish Research Blocks. Author(s ...
Meeting Document : WG-FSA-17/42 : Auteur(s): CCAMLR Secretariat
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Using the EPOC modelling framework to assess management procedures for Antarctic krill in Statistical Area 48: evaluating spatial differences in productivity of Antarctic krill
evaluate management procedures for the Antarctic krill fishery. The key issues to be resolved in the ... development of a harvest strategy are whether (i) spatial differences in the productivity of krill give rise ... to differential affects on predators in different locations, (ii) movement of krill between locations ... ameliorate any local fluctuations in krill abundance and (iii) fishery behaviour could be constrained by ...
Meeting Document : WG-EMM-06/38 Rev. 1 : Auteur(s): A.J. Constable (Australia)
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Review of the use of survey data and length-at-age models in the assessment of Dissostichus eleginoides in the vicinity of Heard Island and McDonald Islands (Division 58.5.2)
implications of this review to estimating the abundance of juvenile fish using CMIX. In addition, the paper ... examines how the latest length-at-age model for Dissostichus eleginoides (Patagonian toothfish) in 58.5.2 ... abundance of specific cohorts were sensitive to the number of cohorts assumed to be represented in the ... estimates of length at age, an independent estimate of relative abundance of cohorts present in any survey ...
Meeting Document : WG-FSA-06/44 Rev. 1 : Auteur(s): D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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Dynamic of the krill fishery in the Area 48 and its relation to climate variability and changes in fishing technology
per effort unit (CPUE) of Antarctic krill fishery in the Area 48 in relation to dynamic of ААО ... indices (Antarctic Oscillation Index) as one of the factors used in analysis of inter-annual and long ... shifts and multivariable wavelets de-noising. The influence of climate variability was traced in the long ... climate variability is the fishery regimes switching observed in long-term fishery in the Area 48. It was ...
Meeting Document : WG-EMM-13/25 : Auteur(s): P.S. Gasyukov and S.М Kаsatkina (Russia)
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Research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.1 in 2014/15
exploratory fishery of Dissostichus mawsoni in Subarea 58.4.1. The stock sizes for five research blocks ... was generally different from that using the CPUE method in each block. As we proposed at the WG-FSA ... operation for at least 3 years with the same sample size as decided at the last CCAMLR meeting in the ... current research blocks, in order to promote successful stock assessment. On the other hand, we ...
Meeting Document : WG-SAM-14/02 : Auteur(s): Delegation of Japan