Résultats de la recherche
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WG-CEMP-94
: implications for TDR studies P.L. Boveng, B.G. Walker and J.L. Bengtson (USA) WG-CEMP-94/20 Draft ... concerning the at-sea behavior of marine mammals and birds and the prospects for a workshop on TDR-related ... ) WG-CEMP-94/30 Progress report on AMLR project “A Modeling Study of the Population Biology of Krill ... (Norway) WG-CEMP-94/40 Recommendations from the Workshop on Researcher-seabird Interactions for ...
Meeting
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Modelling the circumpolar distribution of Antarctic toothfish (Dissostichus mawsoni) habitat suitability using correlative species distribution modelling methods
data. Hence, the influence of background data selection on Maxent model predictions using two ... mawsoni) habitat suitability at different spatial and temporal scales can make an important contribution ... needed to be constrained within an appropriate bathymetric range via post-processing. This resulted in an ...
Meeting Document : WG-FSA-15/64 : Auteur(s): CCAMLR Secretariat
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Exploratory longline fishing around the Kerguelen Islands (Division 58.5.1). Description of the fishing effort; catchability and target size of Dissostichus eleginoides
previously by trawlers in the same area. This average length is comparable for the two successive fishing ... Abstract: During the 1990/91 and 1991/92 fishing seasons, two longliners carried out exploratory ... by trawlers. The vessel is equipped with an automatic longline baiter which has an efficiency of ... being extremely small (0,28%). Length frequency distributions (LFD) observed for Dissostichus ...
Meeting Document : WG-FSA-92/31 Rev. 1 : Auteur(s): G. Duhamel (France)
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CCAMLR-V
CCAMLR-V/03 Provisional Agenda for the Standing Committee on Administration and Finance Executive ... Kingdom CCAMLR-V/19 Report of the Informal Working Group on the Development of a Conservation Strategy for ... Agenda for the Fifth Meeting of the Commission for the Conservation of Antarctic Marine Living Resources ... CCAMLR-V/02 Annotation to the Provisional Agenda for the Fifth Meeting of the Commission Secretariat ...
Meeting
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Experimental evaluation of the effectiveness of weighting regimes in reducing seabird by-catch in the longline toothfish fishery around South Georgia
for toothfish (Dissostichus spp.). Three regimes were examined, with weights of 4.25, 8.5 and 12.75 kg ... effects of different weighting regimes on the incidental mortality of birds caught on longlines fishing ... attached at 40 m intervals on a Spanish-rigged longline. There was a significant reduction in bird ... intervals should be used. Results suggested that seabird by-catch on lines using effective weighting regimes ... (cobbles) of an average weight of 4.25 kg. Two experiments were conducted: (i) a comparison of the use ... plunge from two or three metres above the surface of the water and remain submerged for several seconds ... which has participated in the longline fishery around South Georgia for the past several years, and ... problem, but whether it would be for other vessels in other areas might depend on the seabed substratum ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 119–131 : Auteur(s): Agnew, D.J., A.D. Black, J.P. Croxall and G.B. Parkes
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Surface water circulation in krill fishing areas near the South Shetland Islands
with a drogue attached at a depth of 30 m to assess flow patterns at the depth range where krill tended ... to be most abundant. The buoys were tracked using the ARGOS satellite positioning system. Based on ... Islands to the South Georgia and South Orkney Islands on a time scale of 110 to 120 and 85 days ... Orkneys for 20 days before drifting to South Georgia. Buoy 4, deployed in the shelf region, moved east ... currents which had properties of retention. In addition to positions of catches for the past 13 years ... at a depth of 30 m to assess flow patterns at the depth range where krill tended to be most abundant ... une ancre de cape situee a 30 m de profondeur, pour kvaluer les mouvements du courant dans ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Auteur(s): Ichii, T. and M. Naganobu
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WG-FSA-93
D.J. Agnew (Secretariat) WG-FSA-93/20 Estimating confidence intervals for fish stock abundance ... documents Doc Number Title WG-FSA-93/01 Provisional agenda and annotation to the provisional agenda for the ... method for preparing large numbers of otolith sections for viewing by scanning electron microscope J.R ... /12 Rev. 1 Submission of plans for conducting finfish surveys in the Convention Area Secretariat WG ...
Meeting
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
Abstract: Shipboard tracking study for krill-eating predators (penguins and female fur seals) at ... while at shallower layer (20-50 m) at night. In the offshore foraging areas krill showed no diurnal ... vertical migration, staying close to the surface throughout the day. As for body size and maturity of krill ... were totally different between the two foraging areas. The reasons why the fur seal chose offshore ...
Meeting Document : WG-KRILL-92/27 : Auteur(s): T. Ichii, H. Ishii (Japan), J.L. Bengtson, P. Boveng, J.K. Jansen (USA) and M. Naganobu (Japan)
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Haul data analysis from the Polish krill fishery in 1997–1999
sub-areas 48.1 and 48.2. On average, the vessel made from 7 to 9.5 hauls daily which lasted an average ... February and June from 1997 to 1999 in statistical area 48. Records from each haul were used for analysis ... of 60-70 minutes. Differences in catch rates in various areas and years were observed. The highest ...
Meeting Document : WG-EMM-00/17 : Auteur(s): E. Jackowksi (Poland)
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Optimization of survey sampling design in the detection of interannual variability and prey size selectivity in the diet of penguins
results of a survey of prey size in Adélie penguins, sampling designs intended for the detection of inter ... inter-annual variation for mean prey size is fixed at 10%; the test power is taken as 0.9 and Type I ... and prey size selectivity in the diet of penguins Abstract / Description: Based on the preliminary ... errors fixed at 0.1. Cost values of manpower required are based on Argentinian logistics. File: 34 ... colonies, etc. For Esperanza Base it was estimated on the basis of two people working for two and a half ... . Depending on methods, experience, etc, for Esperanza Base it was estimated based on two people working for ... 20 minutes; and the laboratory time was one person working for one hour to sort and clean the well ... interval for ai resulted in n=16. This value defines the size of sub-samples at the year level assuring ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 551–559 : Auteur(s): Marschoff, E. and B. Gonzalez