Résultats de la recherche
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Towards the development of a stock assessment for Patagonian toothfish in Division 58.4.4, SSRU C on Ob and Lena Banks
Abstract: Following the advice from the CCAMLR Working Group in WG-SAM in 2012, a preliminary ... assessment of stock status of D. eleginoides in SSRU C in Ob-Lena Banks was made using a CASAL catch-at ... -length model. In this preliminary assessment, the model was started in 1990 and catch, proportions at ... length in the catch, and recapture data from SSRU C from 2007/08 to 2011/12 were fitted in the model. The ...
Meeting Document : WG-FSA-12/59 : Auteur(s): K. Taki (Japan)
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a
began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... . Based on the result, the next three-season (2016-18) research plan in Division 58.4.3a is also presented ... spp. population(s) in data- poor exploratory fisheries. During the second three-season research, we ...
Meeting Document : WG-SAM-15/03 : Auteur(s): Delegation of Japan
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2015-16 Research plan in Division 58.4.4 for Dissostichus spp.
fishing, CCAMLR decided to close the fishery in 2002 in division 58.4.4. Since 2008 only one vessel ... , Shinsei maru No. 3, had conducted research fishing in accordance with a research plan submitted under CM ... 24-01. In 2014, WG-FSA agreed research fishing conducted in the research blocks C and D by two ... account the remarks made during the WG-FSA 2014. In SSRU 58.4.4D, tag recaptures are insufficient (the ...
Meeting Document : WG-SAM-15/52 : Auteur(s): Delegation of France
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An ecological risk assessment of current conservation measures for krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)
Abstract: Australia is adapting the risk assessment framework used in Area 48 to assess the risks ... involved in any redevelopment of a commercial krill (Euphausia superba) fishery in CCAMLR Divisions 58.4.1 ... has a high likelihood of achieving CCAMLR’s objectives in this region. This paper outlines a ... disproportionately concentrating catches in areas that are also important to krill predators. In particular, this ...
Meeting Document : WG-EMM-18/37 : Auteur(s): N. Kelly, L. Emmerson, S. Kawaguchi, C. Southwell and D. Welsford
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Analysis of gear loss by fishing vessels in the CCAMLR Convention Area as contribution to the marine debris program
Abstract: CCAMLR has monitored marine debris in the Convention Area since the establishment of ... the marine debris program in 1989. In 2017, WG-FSA recommended that lost fishing gear reported from ... vessels be included in annual updates on marine debris. Rates of hook loss in longline fisheries revealed ... a significant variation in the reporting rates between CCAMLR fisheries. When gear was reported lost ...
Meeting Document : WG-FSA-18/17 : Auteur(s): CCAMLR Secretariat
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Stable isotope analysis reveals trophic variation in adult Antarctic krill (Euphausia superba) around the Antarctic Peninsula from austral fall to early winter
Abstract: The Antarctic krill (Euphausia superba) is a key species in the Southern Ocean ... ecosystem and an important link in the food web of the Antarctic ecosystem. The trophic information for this ... known overwintering mechanisms. However, the few studies on the topic differ in their results, in terms ... variation in δ 13 C and δ 15 N values of adult krill in the Antarctic Peninsula, in the austral fall (April ...
Meeting Document : WG-EMM-2019/P03 : Auteur(s): H.T. Zhang, G.P. Zhu, Q. Song, S.Q. Wang, Y. Yang and Q.Y. Yang
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Preliminary trials to test mitigation measures aimed at reducing Macrourus spp. by-catch on autoliners targeting D. eleginoides with longlines in the CCAMLR Convention Area
Abstract: Pilot studies were carried out in 48.3 in 2006 and in 88.1 and 88.2 in 2007 by the ... in catch rates of Macrourus spp due to bait was significant, but not for hook-type. Bait type had ... , variation in CPUE for target and non-target species due to geographical location, depth and soak time were ... significant. In order for the benefits of mackerel bait in reducing macrourid (and other species) bycatch to ...
Meeting Document : WG-FSA-07/33 : Auteur(s): R.E. Mitchell, D.J. Agnew, T. Carruthers, J. Clark, L. Ross (United Kingdom) and J. van Heerden (South Africa)
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Results of the mark–recapture experiment in Subarea 48.3, 2005
– distributed over the whole of the fishable grounds in 48.3 this year. The Petersen mark-recapture estimator ... Abstract: The mark-recapture experiment continued at South Georgia in 2005. In total some 8000 ... fish have now been tagged in 48.3, and both tagging effort, fishing effort and recaptures were well ... , which has been applied previously and described in detail by Agnew et al (2004) and Payne et al (2005 ...
Meeting Document : WG-FSA-05/17 : Auteur(s): D.J. Agnew and A. Payne (United Kingdom)
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Preliminary analysis on the Kerguelen shelf icefish Champsocephalus gunnari stock from 1996/97 to 2001/02: no evidence in the recovery!
deverted fishermen from these specific shallow fishing grounds. However to follow the situation in the area ... cruises in the traditionnal area of fish aggregations. Such cruises occur regularly with two trawlers from ... 1996/97 to 2001/2002, the last season of trawling in the Kerguelen EZ. Preliminary results do not show ... an increasing of the icefish’s abundance in the surveyed area and biomass seems very low. It is a ...
Meeting Document : WG-FSA-02/65 : Auteur(s): G. Duhamel and J. Claudet (France)
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EVALUATION OF VME TAXA MONITORING BY OBSERVERS FROM FIVE VESSELS IN THE ROSS SEA REGION ANTARCTIC TOOTHFISH LONGLINE FISHERIES DURING THE 2008-09 SEASON
Abstract: Conservation Measure 22-07 (2008) requires vessels fishing in the Ross Sea region (and ... materials; stylasterids and gorgonians. Errors in other groups indicated the observers did not always record ... ). Relatively large differences between vessels in how VME taxa bycatch were recorded are noted, along with ... in terminology in how data were recorded in logbooks were noted and alternatives described. Updates ...
Meeting Document : TASO-09/08 : Auteur(s): Carter, M., Parker, S.J., Mormede, S., Tracey, D.M.