Résultats de la recherche
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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 ... with R(t) estimated for both putative one- and two-year-old age classes. above data, and four age ... 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 ... in those years, or the survey results are not representative for this age class. If the former is ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Auteur(s): de la Mare, W.K
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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
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 ... , this is after an absence of 3 years from the winter records and 2 years from the summer. These findings ... individuals observed entangled in debris were juveniles (80% of winter and 50% of summer observations). Of the ...
Meeting Document : SC-CAMLR-XXIV/BG/16 : Auteur(s): Delegation of the United Kingdom
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
Bayesian model. The models were composed of multistage cluster units (i.e. year, subarea, vessel, cruise ... , subareas and vessels. The potent interaction effect between year and subarea suggests large spatio–temporal ... 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 ... 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 : Auteur(s): Okuda, T. and M. Kiyota
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e-imaf-03 report.pdf
... requirement. (vi) In addition, the catch limit for the current year is divided into two parts, with 20 ... last year for Subareas 48.3 (25% (range 17–63) compared with 22% (range 19–31)), 58.6 and 58.7 (45 ... seabird mortality was eight birds (Tables 6.1 and 6.2) compared with 27 birds last year and 30 the year ... compared to zero for the previous year (Table 6.3). Of the two birds observed killed (both at night), one
application/pdf attached to:WG-IMAF-03 ad hoc
Meeting Report : WG-IMAF-03 ad hoc
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e-cc-xxx.pdf
... available for review by WG-EMM. 4.10 Ukraine advised the Commission that the notification was delayed ... encouraged to provide information on these activities and associated research for review by the Working ... . 4.23 The Commission noted that an assessment model is being developed for D. eleginoides in Division ... tonnes in 2012/13 (ii) noted the application of an interim limit reference point to the fishery for C
application/pdf attached to:CCAMLR-XXX
Meeting Report : CCAMLR-XXX
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Trawl bag selectivity in the Champsocephalus gunnari fishery
and the selectivity factor was 3.10 for a mesh size of 80 mm. Comparison of these results with results ... to the limited time available for experiments, should be considered as preliminary. L 50% was 24.8 cm ... from previous years demonstrates close similarity. A significant increase in modal length (up to 34-35 ... was 3.10 for a mesh size of 80 mm. Comparison of these results with results from previous years ... AND AREA Selectivity hauls were made from 17 to 20 June 1990 in an area having the mean coordinates ... - 7 19 - 16 20 30 38 21 - 20 22 - 20 23 - 24 24 38 64 25 534 373 26 1436 866 27 2984 1430 28 ... , it is attached for this reason. A more open mesh is less tense and allows fish to pass through more ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 295–312 : Auteur(s): Bidenko, V.G. and I.G. Istomin
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Fishery Report: Dissostichus eleginoides and Dissostichus mawsoni South Sandwich Islands (Subarea 48.4)
assessment model. 0 10 20 30 40 50 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 SSI Selectivity Age S el ec ... below 20% of B0 in the respective sample of any one year, for each year in the 35-year projection ... extension of the experiment for one more year was recommended, with the revised catch limit of 30 tonnes ... a year. The models were run over the years 1990 to 2010, with an initial unexploited equilibrium ...
Document : Site Section: Publications
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e-sc-xv-a5.pdf
... estimations obtained from age determination methods were reasonably satisfactory for fish up to around age 20 ... of a Long-term Management Plan for C. gunnari in Subarea 48.3 Literature Review Commercial ... , Length and Age Data 3.3 A summary of catch data from the 1996 split-year had been prepared by the ... ) Collection of fish scales and otoliths for age determination. Medium L4 (iv) Monitoring the location and
application/pdf attached to:WG-FSA-96
Meeting Report : WG-FSA-96
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Krill Fishery Report 2017
reported within two working days of the end of that five-day period). For an area where the five-day ... 2017/18 fishing seasons; no less than 75% of vessels during the 2018/19 and 2019/20 fishing seasons ... means that, for an individual subarea in a season, most vessels have either 100% or 0% coverage ... (Champsocephalus gunnari) and 30% L. larseni. 18. The length-frequency distribution of all taxa for which >100 ...
Document : Site Section: Publications
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e-cc-x.pdf
... and replacements is estimated at A$90 700 per year. As an alternative to funding these items on an ... environmental impact assessment to the Scientific Committee for review (SC-CAMLR-X/BG/20). 6.11 It was noted ... ....................................... 3 Review of Budget for 1991 ... Financial Statements for 1990; (ii) Review of Budget for 1991; (iii) Budget for 1992 and Forecast Budget
application/pdf attached to:CCAMLR-X
Meeting Report : CCAMLR-X