Résultats de la recherche
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Phase-randomisation in an integrated assessment model for Antarctic krill
Abstract: An integrated model was configured to estimate eighteen different subsets of 119 total ... parameters in alternative configurations of a model assessing the status and productivity of Antarctic krill ... 48.1, a statistical reporting area used by the Commission for the Conservation of Antarctic Marine ... Living Resources (CCAMLR). The number of estimated parameters was gradually increased across model ...
Meeting Document : WG-SAM-17/31 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss
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WS-FAD-86
/05 Age of Antarctic fish: Validation of the timing of annuli formation in otoliths and scales A.W ... . North (United Kingdom) CCAMLR/86/FA/06 Fish ageing an annotated bibliography of recent publications M ... K.T. Hill (USA) CCAMLR/86/FA/08 Contribution to the early life history of Channichthyidae from the ... Bransfield Strait and South Georgia W. Ślósarczyk (Poland) CCAMLR/86/FA/09 The study of age determination in ...
Meeting
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WG-FSA-85
Preliminary Results of Investigations of the Federal Republic of Germany on Notothenia rossii marmorata ... Fischer 1885 in January/February 1985 K.-H. Kock (FRG) WG-FSA-85/04 Estimates of Fish Stock Biomass around ... South Georgia in January/February 1985 K.-H. Kock (FRG) WG-FSA-85/05 Reproduction Parameters of ... Notothenia rossii marmorata, Notothenia gibberifrons and Champsocephalus gunnari of South Georgia Island L.A ...
Meeting
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WG-FSA-86
documents Doc Number Title WG-FSA-86/01 Preliminary Results of a Bottom Trawl Survey Around Elephant Island ... in May/June 1986 K.-H. Kock (FRG) WG-FSA-86/02 Assessments of the Stocks of Notothenia rossii ... Fishing Data Collected in the South Georgia Area During the 1985/1986 Cruise of MT Carina W. Ślósarczyk WG ... -FSA-86/05 Preliminary Appraisal of Antarctic Fish Selection by the 32/36 Bottom Trawl Combined with ...
Meeting
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Seasonal relationships in biological parameters and in spatial distribution in the euphausiid populations sampled during the XIIIth and XVth expedition to the Ross Sea
Abstract: This report summarises the results of krill studies from a large-scale surveys of the ... samples data on Euphasiids were analysed at the aim of: 1) obtain a general picture of interannual and ... seasonal variability of distribution pattern and abundance of Euphausia superba and Euphausia ... of E. superba and its possible spatial and temporal variations across the investigated area. The ...
Meeting Document : WG-EMM-01/62 : Auteur(s): M. Azzali, J. Kalinowski, G. Lanciani, I. Leonori and A. Sala (Italy)
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Improvements to the multiple-frequency method for in situ target strength measurements
to improve the accuracy and precision of in-situ target strength (TS) measurements using split-beam ... improves the rejection of unresolvable and constructively interfering target multiples by combining ... synchronized signals from two or more adjacent split-beam transducers of different frequencies which are not ... integer multiples of each other. In this study, the method itself was improved by: 1) optimizing the ...
Meeting Document : WG-EMM-99/38 : Auteur(s): D.A. Demer (USA) and M.A. Soule (South Africa)
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UPDATED BIOLOGICAL PARAMETERS FOR THE ANTARCTIC STARRY SKATE, AMBLYRAJA GEORGIANA, FROM THE ROSS SEA
Abstract: Photographs of skates taken by observers on New Zealand toothfish longliners in the ... Ross Sea were identified to species. Sample sizes were small, but indicated a ratio of 10.75:1 of ... of tagged skates. Biological parameters were reviewed and updated for Amblyraja georgiana. Revised ... relationships differ significantly. Better estimates of median length at maturity were made possible through a ...
Meeting Document : WG-FSA-08/20 : Auteur(s): M.P. Francis and S. Mormede (New Zealand)
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Climate change and zooplankton dominance in the Antarctic marine ecosystem: implications for the food web
Abstract: There is a growing body of evidence that the climate of the Antarctic Peninsula region ... has been warming over the past 40 years with an associated decreased frequency of winters with ... function of the Antarctic marine ecosystem. In the Antarctic Peninsula region winter sea-ice coverage is a ... major factor regulating recruitment and population size of Antarctic krill (Euphausia superba) and ...
Meeting Document : WG-EMM-96/21 : Auteur(s): Siegel, V., Fraser, W., Trivelpiece, S., Holm-Hansen, O., Loeb, V., Hewitt, R., Trivelpiece, W.
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Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?
genetic study investigated the population structure of this species, but used mitochondrial DNA sequencing ... and was unable to discriminate between hypotheses of panmixia, with occasional fluctuations of gene ... investigate the population structure of P. antarcticum along the Antarctic Peninsula (AP) shelf, a region of ... Antarctica highly impacted by regional warming. We found a single gene pool and an absence of inter-annual ...
Meeting Document : WG-FSA-13/67 : Auteur(s): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)
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Finfish distribution and abundance in Subareas 48.1 and 48.2, 2016–2018. Research proposal for the second year
Abstract: According to the experience gained in the first phase of the research and observations ... made by WG-SAM-16, a new proposal is provided to determine the distribution and abundance of fish in ... of Elephant Island and north of South Orkney Islands, between 100 and 500 m of depth (Depth strata ... daily stages of operation, performed with a midwater trawl, with six random spatially distributed hauls ...
Meeting Document : WG-FSA-16/31 : Auteur(s): Delegation of Chile