Resultados de la búsqueda
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
last WG-SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each block in ... such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ... coefficient variance of biomass estimate from the bootstrapped procedure, under the condition that the ... block, in order to promote successful stock assessment. We tentatively examined the degree of coverage ...
Meeting Document : WG-FSA-13/39 : Autor(es): Delegation of Japan
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Long term movements and activity patterns of an Antarctic marine apex predator: the leopard seal
ecosystems through local predation. Here we report on the successful use of micro geolocation logging sensor ... tags to track the movements, and activity, of four leopard seals for trips of between 142-446 days ... advance in our limited knowledge of leopard seals. We show the longest periods of tracking of leopard ... island of South Georgia. It appears that these tracked animals migrate in a directed manner towards Bird ...
Meeting Document : WG-EMM-18/P09 : Autor(es): I.J. Staniland, N. Ratcliffe, P.N. Trathan and J. Forcada
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Reproductive ecology of Antarctic toothfish, Dissostichus mawsoni (Norman, 1937) (Actinopterygii: Nototheniidae), in the Antarctic waters (SSRUs 58 and 88)
Abstract: Total numbers of Antarctic toothfish collected in the CCAMLR Conservation Zone were 600 ... fish which consist of 306 fish from the 58 area and 294 fish from the 88 area during February through ... higher total length. The ratio of female among the 857 specimens of Antarctic toothfish collected from ... was found to be 0.53, and displayed the tendency of increase with increase in the total length 140 cm ...
Meeting Document : WG-FSA-18/65 : Autor(es): J.-W. Kim, S.-G. Choi, S. Chung and D.H. An
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Report of the UK Groundfish Survey at South Georgia (CCAMLR Subarea 48.3) in January/February 2019
Abstract: The UK undertook a bottom trawl survey of CCAMLR sub-Area 48.3 on the FV Sil between ... the 27thth January and 5th February 2019. A total of 73 random and representative hauls were completed ... covering depths of between 108 and 352m. Overall biomass of mackerel icefish, Chamsocephalus gunnari, was ... calculated at 50,897 tonnes with a lower 1-sided 95% interval estimate of 30,288 tonnes. This is lower than ...
Meeting Document : WG-FSA-2019/20 : Autor(es): S. Gregory, P. Hollyman, T. Earl, A. Clement, J. Visagie, L. Featherstone and M. Belchier
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Information on krill in reports from the CCAMLR scheme of international observation and its utility for management
Abstract: A preliminary analysis of the 32 reports submitted under the CCAMLR Scheme of ... International Observation revealed that there are a number of inconsistencies in the information being reported ... . Few reports have been submitted each year with a maximum of eight submitted in 2005. Very little ... area 48.3. Information on fishing gear suggests great differences between vessels. Aspects of ...
Meeting Document : WG-EMM-07/22 : Autor(es): J. Foster, S. Nicol and S. Kawaguchi (Australia)
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Effects of variability in prey abundance on reproduction and foraging in chinstrap penguins (Pygoscelis antarctica)
Abstract: Life-history theory predicts that adults of long-lived species such as seabirds should ... offspring provisioning, the most energetically costly component of seabird parental care, adults need to ... contend with large interannual fluctuations in prey availability and hence the cost of chick provisioning ... foraging effort. Using ship-based hydroacoustic assessment of prey, time-depth recorders attached to ...
Meeting Document : WG-EMM-06/P6 : Autor(es): D.A. Croll, D.A. Demer, R.P. Hewitt, J.K. Jansen, M.E. Goebel and B.R. Tershy (USA)
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Update on the Agreement on the Conservation of Albatrosses and Petrels (ACAP)
Abstract: The Agreement on the Conservation of Albatrosses and Petrels (ACAP) entered into force ... on Sunday 1 February 2004. Six countries (Australia, New Zealand, Ecuador, Spain, the Republic of ... of threatened seabirds. The first Meeting of the Parties is to be held in Hobart, Australia, on 10—12 ... November 2004. The agenda for this meeting is prescribed under Article VIII of the Agreement, and will ...
Meeting Document : WG-FSA-04/51 : Autor(es): B. Baker and T. Hewitt (Australia)
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Entanglement of Antarctic fur seal Arctocephalus gazella in man-made debris at Signy Island, South Orkney Islands 2001/02
Abstract: The results of the sixth annual survey of entanglement of Antarctic fur seals at Signy ... Island, South Orkney Islands are reported for the 2001/2002 summer season. There was a single sighting of ... a seal wearing a neck collar of man-made debris. Data are compared with results from a parallel ... that the number of entangled fur seals had increased by 118% compared to the previous year, this being ...
Meeting Document : SC-CAMLR-XXI/BG/06 : Autor(es): Delegation of the United Kingdom
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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
Abstract: A survey of Patagonian toothfish, Dissostichus eleginoides, was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in May 2002 to provide the information for an assessment of long ... 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 : Autor(es): A.J. Constable, R. Williams and T. Lamb (Australia)
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Towards an ecosystem status assessment for South Georgia ‘Variability of Southern Ocean Ecosystems’ Project Team
Abstract: We present the beginnings of a compilation of a suite of physical and biological ... oceanographic data, and concomitant data on abundance and condition of some key zooplankton species and ... 1999. We plan to use these data, some of which arise from the British Antarctic Survey's Core ... Programme, to develop multivariate indices of "ecosystem status". We expect that such indices will ...
Meeting Document : WG-EMM-00/61