Résultats de la recherche
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UPDATE OF THE INTEGRATED STOCK ASSESSMENT FOR THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS (DIVISION 58.5.2)
Heard and McDonald Islands (Division 58.5.2) was updated by replacing catch-at-length proportions from ... commercial catches with catch-at-age proportions by applying age length keys (ALKs) to gear- type/ground (i.e ... significant loss of information. Pooling the ALKs in this way meant that all commercial catch data could be ... input to CASAL as catch-at-age proportions except for the 2009 catches. For 2006 and 2007 random ...
Meeting Document : WG-FSA-09/20 : Auteur(s): S.G. Candy and D.C. Welsford (Australia)
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Review of fishery monitoring and forecast procedures
Abstract: The Secretariat monitors the catches of all target and by-catch species (or species ... areas where catch limits apply. Each season, approximately 130 catch limits are monitored and a linear ... averaged 98.5% of the relevant catch limits. The forecast model relies on the assumption that the fishery ... catch limits, and as such overruns are a part of the management process used by CCAMLR. Where the ...
Meeting Document : WG-SAM-13/06 : Auteur(s): Secretariat
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Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob and Lena Banks
during the latest WG-SAM meeting. The six models with three kinds of assumptions on IUU catch were ... arranged referring to WG-SAM-14/18 as follows: 1) catch at length/age models on the assumption of no IUU ... fishing occurrence (Len_1/AgeSing_1 models), 2) catch at length/age models with estimation of IUU catch ... within the model using disease mortality functionality (Len_2/AgeSing_2 models), 3) catch at length/age ...
Meeting Document : WG-FSA-14/23 : Auteur(s): K. Taki (Japan)
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Krill fishery report: 2010 update
(China, Japan, Korea, Norway, Poland, Russia) have fished in Area 48. The total catch reported to May ... . Approximately 40% of the catch has been taken by two vessels using the continuous fishing system. The forecast ... total catch of krill for the season is 150000-180000 t. In 2008/09, five Members fished for krill in ... Area 48 and reported a total catch of 125826 t; two vessels used the continuous fishing system. The ...
Meeting Document : WG-EMM-10/05 : Auteur(s): Secretariat
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The efficacy of video-based electronic monitoring technology for at-sea monitoring of the halibut longline fishery
hooks. Catch items identified by EM represented over 60 fish, invertebrate or seabird species or species ... groupings, and the 15 fish most abundant species accounted for 98% of the catch. Data from fishing trips ... where EM and observers were deployed (about 55% of trips) were compared by total overall catch, total ... catch by set, and catch by individual hook. Overall EM and observer catch estimates agreed within 2 ...
Meeting Document : WG-FSA-03/100
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Krill fishery report: 2012 update
have fished for krill in Area 48; one vessel is using the continuous fishing system. The total catch ... June. The forecast total catch of krill for this season ranges approximately from 108000 to 151000 t ... . In 2010/11, 13 vessels fished for krill in Area 48 and the total catch of krill was 180986 t; two ... vessels used the continuous fishing system. The largest catch of krill was taken off the South Orkney ...
Meeting Document : WG-EMM-12/05 : Auteur(s): Secretariat
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A statistical method for analysing the extent of IUU fishing in CCAMLR waters: application to Subarea 48.3
Abstract: 1. This paper describes a new method for estimating IUU catch of fish and birds. It ... rigorous estimates and confidence intervals of fish and bird catch by IUU vessels. This method has not been ... an FPV we obtained an estimate of total IUU fishing time. 4. The total annual IUU catch of toothfish ... the purposes of calculation of fish and bird catch associated with IUU fishing. The catch rate of fish ...
Meeting Document : WG-FSA-02/4 : Auteur(s): D.J. Agnew and G.P. Kirkwood (United Kingdom)
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Proposal for a skate tagging program in the Ross Sea region to estimate the local biomass trend for starry skates (Amblyraja georgiana)
for skates in the Ross Sea region, we summarise skate catch and mark-recapture data through the 2016 ... annually). Catch data show that most of the skate catch consists of Amblyraja georgiana and that this ... biomass. Much of the A. georgiana catch occurs in SSRUs 88.1H and 88.1I in an area remaining open to ... the 2010–2016 seasons (excluding 2012). We estimated that the exploitation rate of the current catch ...
Meeting Document : WG-FSA-18/38 Rev. 1 : Auteur(s): S. Parker and M. Francis
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Report on scientific observations onboard the Chilean longliner, ‘Puerto Ballena’, in Statistical Subarea 48.3 from March to May 1996
D. eleginoides, the estimation of the finfish by-catch, the estimation of a conversion factor of ... associated with the longline operations. The catch of D. eleginoides was mainly comprised of specimens of 70 ... -130 cm whith the proportion of females in the catch exceeding those of males in fish larger than 1 10 ... considerable portion of the seabird by-catch. A by-catch of 159 dead seabirds was reported by the scientific ...
Meeting Document : WG-FSA-96/22 : Auteur(s): Selling, J., Kock, K.-H.
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Results from the random stratified trawl surveys to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2010 and 2011
the average catch for the previous four years (2006-2009). Catches of C. gunnari were very low, with ... the 2011 catch, at less than 0.5 t, 15% of the earlier four year average, and the 2010 catch being 60 ... % of the 2011 catch. In 2011 the abundance of L. squamifrons was higher, and C. rhinoceratus lower than ... were just below and just above average for 2010 and 2011 respectively. A notable increase in the catch ...
Meeting Document : WG-FSA-11/23 : Auteur(s): G.B. Nowara, S.G. Candy and T. Lamb (Australia)