Résultats de la recherche
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ADÉLIE PENGUIN SURVIVAL: AGE STRUCTURE, TEMPORAL VARIABILITY AND ENVIRONMENTAL INFLUENCES
Abstract: The driving factors of survival, a key demographic process, have been particularly ... what environmental features they are most likely to respond to. Here we examine the influence of ... environmental fluctuations, broad climatic conditions and the success of the breeding season prior to winter on ... annual survival of an Adélie penguin population using mark-recapture models based on penguin tag and ...
Meeting Document : WG-EMM-11/P4 : Auteur(s): L. Emmerson and C. Southwell
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... in a slightly higher estimate of initial biomass than in 2005, though this was mostly due to a ... different assumption of the level of natural mortality (M=0.13 y-1), and the revised length-weight and ... information on stock size, but none of the data sets had much information about the maximum size of the stock ...
Meeting Document : WG-FSA-06/48 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)
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Haul data analysis from the Polish krill fishery in 1997–1999
Abstract: The analysis of fishing data obtained from the ship’s log of the Polish commercial ... vessel M/T Pollux facilitated the characterization of catches and concentrations of krill between ... of 60-70 minutes. Differences in catch rates in various areas and years were observed. The highest ... concentrations occurred deeper, at depths of 10-140 m, while at night the concentrations were closer to the ...
Meeting Document : WG-EMM-00/17 : Auteur(s): E. Jackowksi (Poland)
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Observations pour la saison 2013/2014 relatives à la pêche INN en division 58 de la CCAMLR et dans les ZEE françaises adjacentes aux îles Kerguelen et Crozet et Synthèse de ces observations sur la décennie 2004–2014
operation throughout the year, no observations of IUU fishing activity were noted or reported, although ... fishing gear not belonging to licensed vessels was found on a number of occasions. Furthermore, no IUU ... these efforts should be continued. Indeed, with the exception of one year, vessels on CCAMLR’s IUU list ... French naval frigate, of a fishing vessel in the Crozet EEZ, along with the regular recovery of illegal ...
Meeting Document : CCAMLR-XXXIII/19 : Auteur(s): Délégation française
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Methodology for automated spatial sea ice summaries in the Southern Ocean
Abstract: Sea ice is recognised as a core driver of both ecosystem dynamics and fishery ... dynamics of sea ice in a target location for a specified period, and a temporal view is used to ... during historical fishing events. The distribution of local ice concentration at the time of each fishing ... relationship between sea ice concentration and fishing. Although more than 85% of fishing events occurred in ...
Meeting Document : WG-FSA-14/54 : Auteur(s): S.J. Parker, S.D. Hoyle, J.M. Fenaughty and A. Kohout (New Zealand)
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Progress report on the Australian Fisheries Research and Development Corporation project to develop robust assessment methods and harvest strategies for spatially complex, multi-jurisdictional toothfish fisheries in the Southern Ocean
spatial characteristics of current and historical fishing by France and Australia, and the underlying ... distribution, abundance and movement of toothfish on the Kerguelen Plateau, to enable complementary harvest ... to assist assessing other spatially structured fisheries. We provide (1) an outline of the project ... objectives, and report progress on; 2) Modelling the spatial distribution of toothfish by their median length ...
Meeting Document : WG-SAM-15/37 : Auteur(s): P. Burch, C. Péron, D. Welsford, P. Ziegler, T. Lamb, T. Robertson (Australia), G. Duhamel, N. Gasco, P. Pruvost, C. Chazeau and R. Sinègre (France)
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Commentaires sur le projet final de la mesure de conservation sur l'établissement d'une AMP dans le système de l'Antarctique de l'Est (EARSMPA)
Abstract: Analysis of changes to the draft Conservation Measure on establishment of an MPA in the ... East Antarctic System (EARSMPA). Author(s): Delegation of the Russian Federation Title: Comments on ... the final draft of the Conservation Measure on the establishment of an MPA in the East Antarctic ...
Meeting Document : CCAMLR-XXXIV/34 : Auteur(s): Делегация Российской Федерации
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A SIMULATION STUDY TO DETERMINE THE RELATIONSHIP BETWEEN SAMPLING INTENSITY AND PRECISION WHEN ESTIMATING AVAILABILITY FUNCTIONS FOR BREEDING ADÉLIE PENGUIN COLONIES
consuming and expensive to process, and it is of interest to determine if such data could be subsampled with ... significant loss of information content. To this end, a simulation study was undertaken to examine how the ... frequency of sampling attendance at Adélie penguin breeding colonies would affect models of attendance for ... correcting population counts for potential attendance bias. Generalised additive models of simulated time ...
Meeting Document : WG-EMM-11/12 : Auteur(s): J. McKinlay and C. Southwell (Australia)
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CCAMLR TAGGING PROGRAM
tagging details of a greater proportion of tags than reported last year which has resulted in an improved ... proportion of the tags that can now be linked to tagging events in exploratory fisheries (Table 1). The ... CCAMLR database of some information on tag deployments and recaptures from tagging schemes that are ... inventories of these tags to the Secretariat (WG-FSA 08 paragraph 3.56). This request, including a tag ...
Meeting Document : WG-SAM-09/04 : Auteur(s): Secretariat
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Towards a new method for age determination in Antarctic krill, and evidence that krill shrink under natural conditions
maintained in conditions of low food availability. Recent studies have also demonstrated that E. superba ... -length and the crystalline cone number of the compound eye was examined. Samples collected in the late ... be a more reliable indicator of age than body-length alone. The ratio of crystalline cone number to ... body-length offers a method for detecting the effect of shrinking in natural populations of krill. On ...
Meeting Document : WG-Krill-94/17 : Auteur(s): W. de la Mare (Australia)