Resultados de la búsqueda

1. e-sc-xxviii-a6.pdf

   ... -specific ALK produced a catch-at-age distribution similar to that with an area-combined ALK. For the ... slope area there was an over-representation of the older age classes, while for the north area there ... assessment. ASSESSMENTS Age-based assessments Review of updated methodologies proposed for use in the ... the revised model incorporating catch-at-age and survey data should be used for undertaking an application/pdf attached to:WG-SAM-09

   Meeting Report : WG-SAM-09

2. e-sc-xi-a7.pdf

   ... included as an appendix to the CEMP Standard Methods for Monitoring Studies and also be published in the ... including information on future research and references to published results. This new format for Table 2 ... considered at a meeting of WG-CEMP if they are received by the Secretariat for circulation and review no ... automated weighing and data logging system for penguins (WG-CEMP-92/20). Weights of the birds are recorded application/pdf attached to:WG-CEMP-92

   Meeting Report : WG-CEMP-92

3. Schedule of Conservation Measures in Force 1993/94

   the Commission in accordance with Article IX of the Convention for the Conservation of Antarctic ... . The total number of meshes to be measured is provided for in Article 6. 3 ARTICLE 6 ... additional series of 20 meshes selected in accordance with Article 3 shall be measured. The mesh size shall ... Article 5 when using a weight or dynamometer, one series of 20 meshes only shall be measured ...

   Document : Site Section: Publications

4. Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf

   , with some evidence for an ontogenetic migration from east to west as they grow. From the fisheries data ... available, there is no evidence for a northward contraction in the range of D. mawsoni over the course of ... modes at 80 cm and 100–115 cm in each of the three years. For com- parison, the size distribution of ... for all years up to, and includ- ing, the 2007/08 fishing year. The observer data used in this report ... 88.2 for all years up to, and including, the 2007/08 fishing year. Data error checking and grooming ... caught in each of the three grounds, for years where more than 10 sets were completed, is shown by year ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Autor(es): Hanchet, S.M., S. Mormede and A. Dunn

5. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic peninsula region

   0.88 to 0.94 for different years. The exchange rate of water masses and krill biomass within one summer ... Abstract:  A net sampling survey for krill was carried out by RV ‘Meteor’ along the Antarctic ... Peninsula from 26 December 1989 to 14 January 1990. Results were compared with data of an identical survey ... rate of Z=0.88 (1989/90) and Z=0.96 (1987/88). Production was estimated and resulted a P/B ratio of ...

   Meeting Document : WG-KRILL-91/15 : Autor(es): Delegation of Germany

6. The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991: fishing effort distribution and interannual patterns

   from 1977 to 1991 was 50 086 vessel-days fished, in Subareas 48.3 (45% of the total for the period ... observers and may differ from fi shery statistics offi cially published in the USSR. For a comparative ... 99 8 28 2 57 1 19 78 14 2 80 3 89 9 23 11 6 63 7 89 8 20 1 89 0 19 ... 00 6 3 63 4 19 90 37 4 85 6 35 0 21 3 27 3 40 9 27 2 75 1 4 20 9 19 91 ... 7 61 15 3 20 6 0 22 80 36 17 4 21 4 88 0 70 35 1 14 6 2. 3 B ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 1–13 : Autor(es): Litvinov, F.F., V.A. Sushin, G.A. Chernega and O.A. Berezhinsky

7. e-sc-40-a5.pdf

   ... establishing baseline krill biomass estimates and a report has been submitted for review to WG-EMM-2021. WG ... Group noted that 40 mm was selected as an upper boundary for the recruitment ratio, which may include ... krill individuals aged between 1 and 2 years old, and the age-1 group may not be represented adequately ... spatial scale and having an appropriate length cut-off for the proportional recruitment parameter. 3.15 application/pdf attached to:WG-SAM-2021

   Meeting Report : WG-SAM-2021

8. Estimating krill recruitment and its variability

   rate for 1+ krill (the ratio of the number of krill aged one year to the number of krill aged one year ... for 2+ krill (the ratio of the number of two-year-old krill to the number aged two and above) from ... likelihood method is developed for the decomposition of krill density-at-length data into the proportion of ... and above) of 0.339 with a standard deviation (SD) of 0.100. The corresponding result for recruitment ... in those years, or the survey results are not representative for this age class. If the former is ... Estimating Krill Recruitment and its Variability 20 30 40 50 60 Length (mm) 100 90 Nella Dan: ADBEX I ... o 80 8 70 * 60 .$ : 5 30 D 20 10 0 Figure 7: The fit of mixture distributions to ... with R(t) estimated for both putative one- and two-year-old age classes. above data, and four age ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Autor(es): de la Mare, W.K

9. Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 2004 winter and 2004/05 breeding season

   , this is after an absence of 3 years from the winter records and 2 years from the summer. These findings ... 64% from last year. For the first time since records started in 1990, none of the injuries were ... % compared to last year; the lowest number of entanglements recorded since 1989. As in previous years, most ... individuals observed entangled in debris were juveniles (80% of winter and 50% of summer observations). Of the ...

   Meeting Document : SC-CAMLR-XXIV/BG/16 : Autor(es): Delegation of the United Kingdom

10. Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data

    parameters estimated by the Markov chain Monte Carlo (MCMC) method hardly show difference among years ... Bayesian model. For both krill length and by-catch fish number, vessel sample size shows marked effects on ... the coefficient of variation (CV), although haul sample size affects CV for only krill length data up ... commercial vessels provides important information for the management of krill resources and the Antarctic ... th (m m ) 60 50 40 30 20 (a) Adult size in Subarea 48.1 Overall trend Year E st im at ... Year E st im at ed m ea n le ng th (m m ) 60 50 40 30 20 (c) Adult size in Subarea ... 40 30 20 (e) Year Area Y–A Ves. Cruise Haul Ind. Va ria ... deploying an observer but also of the time budget for the observer because scientific observers are ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Autor(es): Okuda, T. and M. Kiyota

Páginas