Résultats de la recherche
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Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4
Abstract: The stock of Antarctic toothfish (D. mawsoni) in CCAMLR subarea 48.4 is estimated from ... tagging returns to be 982 tonnes in 2018. Applying the CCAMLR agreed precautionary assumption of average ... biomass across the time series and harvest rate of γ = 0.038, implies a 2018/19 yield of 37 tonnes ... the 48.4 Antarctic toothfish as a separate stock. Based on the biological characteristics of the ...
Meeting Document : WG-FSA-18/26 : Auteur(s): T. Earl and A. Riley
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Outline for year 3 of the 3-year longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
bathymetry and associated distributions of benthic bycatch species. This paper reiterates the key points of ... third and final year of an agreed 3-year longline survey, in the wider context of connecting the ... understanding of Dissostichus spp population structures in this region, and improving available data on ... collection and two-year data analysis plan leading towards the development of a stock hypothesis for the ...
Meeting Document : WG-FSA-18/31 : Auteur(s): G. Robson, P. Hollyman and C. Darby
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Krill physiology and impact of temperature variations: a comparative approach
Abstract: The purpose of this "paper" is to present a research project in progress on ... the physiology of Antarctic krill, with a focus on the response to environmental temperature ... variations. This study first focused on the study of heat shock proteins (HSP) and the comparative aspect ... quickly became essential for a better understanding of the mechanisms involved in relation to the ...
Meeting Document : WG-EMM-2019/70 : Auteur(s): J.-Y. Toullec and C.-Y. Lee
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Revised proposal for continuation of a multi-member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2019/20 by Japan, South Africa and Spain
assessments of the Antarctic toothfish (Dissostichus mawsoni) stock in this subarea (FSA-18/34). The ... continuation of the three-member research proposal for 2019/20 season is presented to ensure continuity of ... demographic parameters of D. mawsoni using trotline (JPN and ZAF) and Spanish longline (ESP) gears ... , established tagging techniques, pop-up tags and genetic analysis will provide the basis for the development of ...
Meeting Document : WG-FSA-2019/23 Rev. 1 : Auteur(s): Delegations of Japan, South Africa and Spain
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Report on the use of automatic satellite-linked vessel monitoring system
Abstract: This report outlines information concerning the use of an automatic satellite linked ... Vessel Monitoring System (VMS) by Australia in accordance with paragraph 5 of Resolution 12/XVI. The ... report provides the operational and technical details of the Australian VMS and reports on any breaches ... of CCAMLR Conservation Measures detected through use of the VMS. Author(s): Delegation of Australia ...
Meeting Document : SCOI-98/06 : Auteur(s): Delegation of Australia
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Diet of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region, Antarctica
Abstract: The diet of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region was ... . Overall, the diet of sub-adult toothfish was similar to that of adult toothfish, with a dominance of ... greater variety of smaller prey than adults, including smaller fishes (such as Trematomus sp., dragonfish ... , mainly Bathydraco spp.), and large decapod prawns (Nematocarcinus). By weight and index of relative ...
Meeting Document : WG-FSA-12/52 : Auteur(s): D.W. Stevens, M.R. Dunn, M.H. Pinkerton and J.S. Forman (New Zealand)
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Note on relationship between the Antarctic krill and annual variation of ice edge during 1979 to 1992
Abstract: During 1979 to 1991, relationship between the size of Antarctic krill and the extent of ... the sea ice in the sea area around the South Shetland Islands are described. Mean size of krill near ... . This implies that strong recruitment of small size krill had occurred just after the season with the ... strong ice extent. Interannual fluctuations of the ice extent are known to relate with the strength of ...
Meeting Document : WG-KRILL-93/26 : Auteur(s): M. Naganobu and S. Kawaguchi (Japan)
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On the catchability of bottom trawl in relation to icefish (C. gunnari)
Abstract: Analysis of Russia HAK-4M trawl catchabilities has been made in the paper. This trawl ... have been used when icefish bottom surveying. An analysis of total catchability and a differential one ... (that is catchability in relation to fish of different length) has been realized by models of ... probability statistical theory for fishing trawls. Influence of trawling speed, trawl configuration and ...
Meeting Document : WG-FSA-SAM-04/11 : Auteur(s): Kasatkina, S.M., Ivanova, V.F.
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2009/10
Subarea 88.1 and for 9 years in Subarea 88.2. This report summarises the timing, depth, and location of ... fishing together with the catch of Dissostichus spp and bycatch species by year for the period 1997–98 to ... 2009–10. During the 2009–10 fishing year most of the catch in Subarea 88.1 came from the slope SSRUs ... considerably over time in each of the fisheries showing no trend in the main fisheries in Subarea 88.1 and SSRU ...
Meeting Document : WG-FSA-10/23 : Auteur(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)
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Nine years of tag-recapture in CCAMLR Statistical Subarea 48.3 – Part II: Spatial movement and analysis
Abstract: This paper presents an analysis of data gained from nine years of tagging of Patagonian ... procedure, Patagonian toothfish biology, growth and local movement of Patagonian toothfish in 48.3 ... . The characterisation of tag recapture data from Subarea 48.3 shows that the tagging programme is ... indication of spatial areas of biological interest, such as potential spawning and nursery grounds. Author(s ...
Meeting Document : WG-FSA-14/49 : Auteur(s): M. Soeffker, C. Darby and R.D. Scott (United Kingdom)