Search results
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Pairwise tag performance: testing the sensitivity of the tag detection index and the mortality of tagged fish index
developed in 2012 and further developed in 2013, using a methodology which controls for the spatial and ... all other fishing events which occurred in the same time and place (i.e. within a specific distance ... and in the same fishing season). The method showed that when the confounding effects of variable ... with respect to the tag detection index in the Ross Sea region. Here we present the results of ...
Meeting Document : WG-FSA-13/50 : Author(s): S. Mormede (New Zealand)
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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 : Author(s): O. Pin and E. Rojas (Uruguay)
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Effects of the Antarctic Circumpolar Current on fishing for squid (Illex Argentinus) in the Atlantic sector of the Southern Ocean
Abstract: The paper introduces several approaches to assessment of hydrological situation in the ... Atlantic sector of the Southern Ocean (the South-West Atlantic). The analysis of the SST maps suggests that ... hydrological factors depend on the intensity of two currents, the Antarctic Circumpolar Current and the ... Falkland current The paper shows correlation between a certain hydrological situation and fishing for squid ...
Meeting Document : WG-EMM-99/15 : Author(s): G.P. Vanyushin and T.B. Barkanova (Russia)
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Reports on abundance and biological information of toothfish in Division 58.4.3b by Shinsei Maru No.3 in the 2010/11 and proposal of the consecutive survey in the 2011/12
Abstract: In accordance with the Conservation Measure 41-07 (2010), a survey was conducted in ... order to collect information for the stock status and biology of toothfish in the southeast sector (24 ... released alive) of Dissostichus spp. and other bycatch species was 12.0 tonnes in the SE sector, where the ... catch limit of 15 tonnes was set. Dissostichus spp. made up 90.3 % in terms of weight of the whole fish ...
Meeting Document : WG-SAM-11/05 : Author(s): K. Taki, T. Iwami and M. Kiyota (Japan)
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Convener’s summary on intersessional activities of the Subgroup for the Implementation of the CCAMLR-2008-IPY-Survey
Abstract: At its last meeting in October 2004 the Scientific Committee agreed that a synoptic ... acoustic survey in the South Atlantic region would be the most appropriate activity for CCAMLR in the IPY ... 2008. It was agreed that a synoptic acoustic/net sampling survey in the South Atlantic region should ... observations on marine zooplankton, marine mammals and birds. The Scientific Committee has established an ...
Meeting Document : SC-CAMLR-XXIV/BG/02 Rev. 1 : Author(s): V. Siegel (Convener, Steering Group ‘CCAMLR-2008-IPY-Survey’)
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A proposal for streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources
Abstract: The work of the Scientific Committee is expanding with a duplication of some functions ... insufficient time at present in the existing working groups, such as consideration of marine protected areas in ... a CCAMLR context. It is proposed that the working groups of the Scientific Committee be revised to ... streamline the work and to help reduce the number of groups needing to be attended by our experts. The ...
Meeting Document : WG-EMM-05/35 : Author(s): A.J. Constable (Australia)
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Progress on the application of an age-structured production model fitted to commercial catch-rate and catch-at-length data to assess the toothfish (Dissostichus eleginoides) resource in the Prince Edward Island vicinity
Abstract: The Age-Structured Production Model (ASPM) presented to previous meetings is refined to ... allow the estimation of a selectivity-at-age function that decreases at larger ages. This is, in ... particular, to accommodate the view of the August 2003 meeting of the Subgroup on assessment methods that 0.2 ... yr-1 is likely the largest value of natural mortality M that is plausible for toothfish. Catch, catch ...
Meeting Document : WG-FSA-03/97 : Author(s): A. Brandão and D.S. Butterworth (South Africa)
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Variation in the diet of the blue-eyed shag Phalacrocorax atriceps throughout the breeding season at Half-Moon Island, South Shetland Islands
Abstract: One hundred and seventy three regurgitated casts of the blue-eyed shag or imperial ... weekly sampling throughout the breeding season from December 1993 to February 1994. Demersal-benthic fish ... were the main prey (91% in number) followed by mollusks and polychaetes. Six fish species were ... , Gobionotothen gibberifrons and Pagothenia bernacchii. Notothenia coriiceps was the most frequent (F%=73) and ...
Meeting Document : WG-EMM-95/78 : Author(s): Barrera-Oro, E., Casaux, R.
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Censuses in the northernmost colony of Emperor penguin (Aptenodytes forsteri) in the tip of the Antarctic Peninsula at Snow Hill Island, Weddell Sea, Antarctica
Abstract: Breeding colonies of the emperor penguin Aptenodytes forsteri are distributed ... throughout the Antarctic seasonal pack ice zone. One of the last colonies of emperors penguins discovered is ... situated on the south coast of Snow Hill Island, constituting the northernmost colony known in Antarctica ... over the colony during the 2013 breeding season. Likewise, we explored the colony by land, making an ...
Meeting Document : WG-EMM-14/56 : Author(s): M. Libertelli and N. Coria (Argentina)
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A proposed process for the management of model updates and software versions for stock assessment used within CCAMLR with the example of the CASAL software
Abstract: We propose a process by which to select the version of software generally used for ... stock assessments in CCAMLR, with the specific example of the CASAL software used for stock assessment ... . The latest published version of any stock assessment software approved by CCAMLR should be used by ... default, unless the latest development version is necessary, in which case it is the responsibility of the ...
Meeting Document : WG-SAM-14/32 : Author(s): S. Mormede and A. Dunn (New Zealand)