Résultats de la recherche
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Otolith chemistry reflects frontal systems in theAntarctic Circumpolar Current
Author(s): J.R. Ashford, A.I. Arkhipkin and C.M. Jones Title: Otolith chemistry reflects frontal systems in theAntarctic Circumpolar Current Approval: Approved
Meeting Document : WG-FSA-08/P4 - Article : Auteur(s): J.R. Ashford, A.I. Arkhipkin and C.M. Jones
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Modifications to the Generalised Yield Model in 2004, version GYM501E.EXE
fish at the nominated ‘recruitment age’ (age 4 for toothfish) in each year. The first year in the time ... . This was coded specifically for the case of surveys observing fish of ages one year younger than the ... recruitment age and greater. This calculation needed to be made general to allow for many years younger than ... of reviewing the methods for estimating the time series of recruitments of D. elegionoides for WG-FSA ...
Meeting Document : WG-FSA-04/91 : Auteur(s): A.J. Constable (Australia)
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Fish by-catch in the krill fishery: 2017 update
) and CCAMLR SISO data (20 766 hauls) up to 1 Sept 2017 was used to examine the frequency of occurrence ... evidence of an increase in the data quality from the observer scheme, as well as an increase in the ... frequently reported in both datasets. The length-frequency distribution of all taxa for which >200 fish ... : Content Approved Delegation responsibility for releasing documents: CCAMLR Secretariat ...
Meeting Document : WG-FSA-17/04 : Auteur(s): CCAMLR Secretariat
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Variation of ice edge position in western part of Atlantic sector of the Antarctic
position was found to increase from the west to the east. Described is two-year cyclicity of consecutive ... temporal variation in the area between 65° and 20°W. Amplitude of the seasonal variation of the ice edge ... and distribution of the ice edge were calculated for various meridians. Compared to the thirties, the ... winter, and to the west to the Weddell Sea in summer. 6-7 year cyclicity in the ice edge position is ...
Meeting Document : SC-CAMLR-VIII/BG/49 : Auteur(s): Delegation of USSR
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Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) – biomass
155 786 km 2 was estimated to be 1.8225 x 10 6 tonnes (Coefficient of Variation = 9.5%). This gives an ... . An estimate of the mean bottom depth was available for each section. The CTD profiles collected at ... was obtained for an area approximately 1.63 x 105 km2, which compares with the 1.56 x 105 km2 used in ... may be available in the region in any year. For 6.7 x 106 tonnes to be available in a year and ... Analogue echo-integrator was used for the study. The echosounder was calibrated on 22 November and 23 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 225–243 : Auteur(s): Murphy, E., I. Everson and A. Murray
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Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)
them by, on average, 3.6% over the reported figures for that year. The resultant catch series is ... the results were strongly dependent on the informative priors for the two catchability parameters ... 100 tonnes respectively, with an overall catch limit for SGSR of 3 000 tonnes. The total declared ... : Sample size for age determination of fish caught in Subarea 48.3. Year Sample size for age ...
Document : Site Section: Publications
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Fishery Report: Champsocephalus gunnari South Georgia (Subarea 48.3)
Frequency (proportion of the catch) Le ng th (c m ) 10 20 30 40 50 1986/87 1987/88 1988/90 1989/90 ... area and depth strata. 9. An estimate of the one-sided lower 95% CI of biomass was calculated for the ... Parameter Value Future projections Tolerance for finding F in each year 1E-08 Tolerance for resolving ... limits for these species. Champsocephalus gunnari play an important role in the ecosystem of the South ...
Document : Site Section: Publications
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Fishery Report: Champsocephalus gunnari (ANI) South Georgia (Subarea 48.3)
projection of yield (tonnes) for 2012 (year 1) and 2013 (year 2) was completed in WG-FSA-11/30 and produced ... fishing season was from 1 December 2011 to 30 November 2012 and the catch limit for C. gunnari was 3 072 ... fishery in that year. 7. Ecosystem implications/effects 17. The current pelagic trawl fishery for C ... . 20. The krill anomaly did not last for the whole of 2009, and krill had returned by the end of the ...
Document : Site Section: Publications
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Marine debris collected at Cape Shirreff during the Antarctic season 2000/01
51% of the total identified items. For the first time it was recorded an article from Philippines. It ... ringlike, and 48 had the form of loops with knots. This is an evidence of an act against the Conservation ...
Meeting Document : SC-CAMLR-XX/BG/25 : Auteur(s): Delegation of Chile
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Protecting young fish and spawning aggregations of Champsocephalus gunnari in Subarea 48.3 (South Georgia): a review
, and a strategy for the future protection of young fish and spawning aggregations of C. gunnari in ... of each year and end on 30 November of the fc%owing year. References SC-CAMLR, 1984, para raphs ... , paragraphs 9.1 and 9.2). This runs from 1 December to 30 November, and has specific implications for the ... year. MECHANISMS AVAILABLE FOR PROTECTING YOUNG FISH AND SPAWNING AGGREGATIONS Gear Regulations ... its first meeting in 1984. In that year the Scientific Committee noted that 'an extremely useful ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 75–86 : Auteur(s): Parkes, G.B