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CCAMLR measures regulating the tagging of Dissostichus species, metrics used to assess vessel tagging performance, the potential for some anomalous results, and general recommendations on tagging; a view from the hauling room
Abstract: The background to the current CCAMLR toothfish tagging programme is reviewed and recent ... performance measures implemented by CCAMLR to control and monitor the tagging of toothfish (Dissostichus ... species) in exploratory fisheries carried out within the Convention Area are described. Following the ... first season of implementation we describe several circumstances which will cause anomalies in the tag ...
Meeting Document : WG-FSA-11/50 : Autor(es): J.M. Fenaughty (New Zealand) and J. Brown (United Kingdom)
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The results of performance of tagging programs of the Korean exploratory fishery for Dissostichus spp. in 88.1 in the 2010/11 season
Abstract: The Korean flagged bottom longliners, “Jung Woo No. 2” and “Jung Woo No. 3”, have ... participated in the exploratory fishery from 1st Dec 2010 to 10th Jan 2011 for Dissostichus spp. The fisheries ... took place in subarea 88.1 BCJL. During their activities, the vessels gathered scientific information ... presented the results from the fisheries and comparison of statistics in each SSRU. Total catch including by ...
Meeting Document : WG-FSA-11/54 : Autor(es): T. Jung and H.J. Choi (Republic of Korea)
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Review of the efficacy of the early season extension in the Patagonian toothfish fishery in Subarea 48.3 and proposal for further season extension
Abstract: In 2009 CCAMLR agreed to incrementally and conditionally bring forward the start date ... of the Patagonian toothfish fishery in sub-Area 48.3. This allowed vessels that had been 100 ... % compliant with CM 25-01 in the previous season to start 5-days early in 2010 (April 26th) and a further 5 ... days early in 2011 (April 20th). In 2011, following the success of the initial trial, CCAMLR agreed to ...
Meeting Document : WG-FSA-13/32 : Autor(es): M.A. Collins and K. Ross (United Kingdom)
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Interaction of sperm whales with bottom longline and the Mammal and Bird Excluding Device (MBED) operation in the Patagonian toothfish (Dissostichus eleginoides) fishery in the southwestern Atlantic
Abstract: This paper describes the interaction between sperm whales (Physeter macrocephalus) and ... the toothfish fishery (Dissostichus eleginoides) carried out by longline fishing vessels operating in ... two different fishing zones at 40º and 50º latitudes in the Southwestern Atlantic from March to May ... 2007. 62 hauls were performed in the northern zone (latitude 40º 00’ S), while 41 hauls were performed ...
Meeting Document : WG-FSA-07/23 : Autor(es): O. Pin and E. Rojas (Uruguay)
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Descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2003/04
Abstract: A descriptive analysis of the toothfish tagging programme carried out in the Ross Sea ... since 2001 is presented for the first time. Tag-release and tag-recapture data are presented for both ... Zealand vessels were unavailable at the time of the analysis. A total of 4903 Antarctic toothfish have ... been released and 89 recaptured, and 443 Patagonian toothfish released and 9 recaptured. For the last ...
Meeting Document : WG-FSA-SAM-05/10 : Autor(es): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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An initial analysis of the characteristics of Antarctic krill taken by the commercial fishery and Antarctic fur seals during the winters of 2002 and 2003 at South Georgia
Abstract: We present an initial analysis of the fishing locations, fishing depth and length ... -frequency distribution of krill at South Georgia during the winter of 2002 and 2003 and compare these with ... the length-frequency distribution and frequency of occurrence of krill in the diet of Antarctic fur ... seals. There were significant differences in the mean size of krill taken by vessels/measured by ...
Meeting Document : WG-EMM-04/62 : Autor(es): K. Reid, D.J. Agnew, N.L. Warren and E. Owen (United Kingdom)
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Fish in the diet of the blue-eyed shag Phalacrocorax atriceps at the South Shetland Islands: six years of monitoring studies
Abstract: In this document we inform on the results of six years monitoring changes in the diet ... of the Blue-eyed Shag Phalacrocorax atriceps as reflected by the analysis of regurgitated pellets ... collected at two localities of the South Shetland Islands. The comments are mainly focused on Gobionotothen ... the diet of this bird in the lasts years and the importance of G. gibberifrons fluctuated without ...
Meeting Document : WG-EMM-96/31 : Autor(es): Barrera-Oro, E., Casaux, R.
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Comparison of the diet of the blue-eyed shag Phalacrocorax atriceps by the analysis of pellets and stomach contents
Abstract: A total of 45 pellets from the blue-eyed shag Phalacrocorax atriceps were collected in ... January 1994 at Duthoit Point, Nelson Island, South Shetland Islands. The analysis showed fish as the main ... prey, followed by octopods, polychaetes and gastropods. Notothenia coriiceps formed the bulk of the ... diet, but Harpagijer antarcticus was the most frequent and important fish in number. The prey ...
Meeting Document : WG-EMM-95/79 : Autor(es): Silva, P., Coria, N., Favero, M., Casaux, R.
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
Abstract: Following on from the apparent failure to satisfactorily assess the status of the C ... . gunnari population in Subarea 48.3 at WG-FSA-91 using VPA, attempts were made to re-work the analysis ... using Laurec-Shepherd and ADAPT tuning techniques, from 1991 back to 1977. The predicted age structure ... , dominated in recent years by the 1987 year class (1 year olds in 1988), was quite robust, despite the use of ...
Meeting Document : WG-FSA-92/27 : Autor(es): G. Parkes (United Kingdom)
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The Status of the Champsocephalus gunnari Stock in the South Georgia Area
Abstract: This study focuses on the Chamsocephahus gunnari stock around South Georgia. The ... the relationship between the spawning stock and number of recruits. A conventional VPA and an ad hoc ... tuning method are used to estimate biomass levels and fishing mortality for the period 1971/72 to 1988/89 ... . VPA-estimates of recruitment levels are used to investigate the degree of variability and the likely ...
Meeting Document : WG-FSA-89/8 Rev. 1 : Autor(es): M. Basson, J. Beddington (United Kingdom) and W. Ślósarczyk (Poland)