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The 2013 annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters of Heard Island (Division 58.5.2)
Abstract: The annual random stratified trawl survey (RSTS) at Heard Island and McDonald Islands ... (HIMI) was completed during April of 2013. The catches of D. eleginoides for 2013 were half that of 2012 ... times the long term average. Catches of Channichthys rhinoceratus were higher and those of ... take. The catch of invertebrates in the 2013 survey was 6 t, which was lower than the long term average ...
Meeting Document : WG-FSA-13/21 : Автор(ы): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Results of phase I of the Russian research program for toothfish fishery in Subarea 88.3 during the 2010/11 season
Abstract: In accordance with decision of SC-CCAMLR in 2010, the Russian Federation conducted ... onboard longliner Sparta (company “Morskoi Voron”). In total, 20 trotline sets at different depths have ... been made, the total number of exposed hooks being 87,096. The research program covered SSRU B, C, and ... D of Subarea 88.3. In SSRU A longlines were not investigated because ice conditions were difficult ...
Meeting Document : WG-FSA-11/36 : Автор(ы): Delegation of Russia
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Analysis of inter-vessel variability of krill length distribution in the catches obtained in the fishery in the Bransfield Strait (Subarea 48.1)
Abstract: The inter-vessel variability of krill distribution in the catches obtained in the ... Bransfield Strait (SSMU APBSW and APBSE) in April and May 2014 and 2015 was analyzed. The presence of ... operating in the fishing grounds with spatio-temporal overlapping is shown. At the same time, significant ... different fishing methods. The inter-vessel variability of krill length in the catches is more pronounced ...
Meeting Document : WG-EMM-17/28 : Автор(ы): S. Kasatkina
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Some notes on by-catch of fishes and salps caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (January to February 1999)
have been depended on the density of krill concentration. At least, the large incidental catch of salps ... fisheries by F/V Niitaka Maru were made from 3 January to 4 February 1999 in the vicinity of the South ... Shetland Islands. Among 74 net hauls quantitatively examined, only a total of 5 specimens of juvenile ... hauls and those estimated value was 20 to 3560 ind./t of krill. By-catch fishes fed on Thysanoessa ...
Meeting Document : WG-EMM-00/54 : Автор(ы): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)
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Using tag-recapture data to estimate catchability of a series of random stratified trawl surveys
Abstract: For the 2014 assessment of Patagonian toothfish (Dissostichus eleginoides) around the ... Heard Island and McDonald Islands (HIMI) in Division 58.5.2, a prior for catchability q of the random ... stratified trawl survey (RSTS) was estimated by comparing abundance estimates of the survey with abundance ... address potential bias in the estimation of q and conclude that the potential bias that may arise from ...
Meeting Document : WG-SAM-15/34 : Автор(ы): W. de la Mare, P. Ziegler and D. Welsford (Australia)
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A compilation of parameters for a krill–fishery–predator model of the Scotia Sea and Antarctic Peninsula
have therefore documented our sources, assumptions and calculations at every stage of the compilation ... Abstract: We describe the compilation and derivation of parameters for use in krill-fishery ... -predator models of the Scotia Sea – Antarctic Peninsula region. The primary aim is to provide input for the ... parameters should be applicable to other models of the system. Our methods include the use of weighted ...
Meeting Document : WG-EMM-06/30 Rev. 1 : Автор(ы): S. Hill, K. Reid, S. Thorpe (United Kingdom), J. Hinke and G. Watters (USA)
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A generalised model for evaluating yield and the long term status of fish stocks under conditions of uncertainty
flexibility for assessing the influence of different patterns of growth, natural mortality, spawning and ... fishing on the estimates of yield per recruit. Also, it can be used to evaluate the performance of a stock ... each year by integrating a set of differential equations which incorporate functions that specify the ... rate of change or magnitude of parameters, such as growth, mortality, age dependent selectivity and ...
Meeting Document : WG-FSA-95/41 : Автор(ы): de la Mare, W.K., Constable, A.J.
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Preliminary assessment of mackerel icefish (Champsocephalus gunnari) in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in March–April 2010, including a revised growth model
at age of icefish from recent surveys. Author(s): D.C. Welsford (Australia) Title: Preliminary ... Abstract: A survey of mackerel icefish, Champsocephalus gunnari, was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in March-April 2010 to provide the information for an assessment ... of short-term annual yield in the 2010/2011 CCAMLR season. This paper provides a preliminary ...
Meeting Document : WG-FSA-10/12 : Автор(ы): D.C. Welsford (Australia)
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Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000
krill, especially at the beginning of the operation each season. In summer, biological factors that ... Abstract: Inter- and intra-annual variability of commercial krill trawling positions for the 1980 ... /81 to 1999/2000 seasons in the area to the north of South Shetland Islands were analyzed in relation ... the shelf across to the outer shelf in the early to late 1990’s. Intra-annual variation of trawling ...
Meeting Document : WG-EMM-01/35 : Автор(ы): S. Kawaguchi and K. Segawa
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Density and geographical distribution of krill larvae in the Atlantic Sector of the Antarctic region during summer 2011, 2012 and 2014
calculating expected values at a fixed grid of points. The significance of the differences was established ... Abstract: The analysis of euphausiid larvae collected during summer 2011 in the Weddell Scotia ... decrease in the abundance of Euphausia superba larvae and an increase in Thysanoessa macrura in 2011 and ... 2012 and a strong increase in the abundance of E. superba in 2014. Oceanographic conditions didn’t show ...
Meeting Document : WG-EMM-17/29 : Автор(ы): E. Rombolá, C. Franzosi, G. Tossonotto, V. Alder and E. Marschoff
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