Resultados de la búsqueda
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Quantifying the impacts of ice on demersal longlining; a case study in CCAMLR Subarea 88.1
Abstract: The effect of sea ice is acknowledged as a major influence on fishing operations in ... high latitudes but not widely understood in detail other than by fishers and specialists in Antarctic ... fisheries research and management. Using the toothfish fishery in CCAMLR Subarea 88.1 as a case study we ... provide a method to quantify the effect of sea-ice on fishing. We discuss the ways in which ice effects ...
Meeting Document : WG-FSA-14/55 Rev. 1 : Autor(es): J.M. Fenaughty and S.J. Parker (New Zealand)
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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 : Autor(es): 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 : Autor(es): Delegation of France
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Catches of target species in the Convention Area
Abstract: Summary of catches from directed fishing on toothfish, icefish and krill in the ... Convention Area in 2014/15 and 2015/16, including catches taken during scientific surveys conducted in ... accordance with Conservation Measure 24-01. Catches reported in 2014/15 were published in the CCAMLR ... in 2015/16 are also summarised. Author(s): CCAMLR Secretariat Title: Catches of target species in ...
Meeting Document : SC-CAMLR-XXXV/BG/01 : Autor(es): CCAMLR Secretariat
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The Norwegian SWARM project: from swarming behaviour to trophic interactions: modelling dynamics of Antarctic krill in ecosystem hotspots using behaviour-based models
Abstract: Norway is in the process of extending its monitoring efforts in the area around South ... Orkneys by deploying acoustic moorings in a commercially exploited area. Data gathered from the moorings ... will be used to parametrise models, in order to gain better understanding of the interaction between ... ocean physics and behaviour in driving krill biomass variation in the area. Author(s): T.A. Klevjer, G ...
Meeting Document : WG-EMM-17/26 : Autor(es): T.A. Klevjer, G. Rieucau, A.H.H. Renner, G. Skaret and O.R. Godø
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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 : Autor(es): N. Kelly, L. Emmerson, S. Kawaguchi, C. Southwell and D. Welsford
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An exploration of the biological data used in the CCAMLR Subarea 48.3 Patagonian toothfish stock assessments
Abstract: WG-FSA 2018 noted that changes in productivity parameters may impact assessment ... change. The Working Group recommended that key assessment parameters be reviewed and that changes in the ... fishery dynamics that would impact their estimation be explored. The biological productivity parameters in ... subarea 48.3 are analysed here, particularly whether the proportion of females in the catch, maturity at ...
Meeting Document : WG-SAM-2019/32 : Autor(es): E. MacLeod, K. Bradley, T. Earl, M. Söffker and C. Darby
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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 : Autor(es): H.T. Zhang, G.P. Zhu, Q. Song, S.Q. Wang, Y. Yang and Q.Y. Yang
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The toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2002/03: New Zealand vessel summary
Abstract: An exploratory fishery for Antarctic toothfish (D. mawsoni) has been in operation for ... six seasons in Subarea 88.1 and for two seasons in Subarea 88.2. A large amount of data on both ... is to present the analysis of data collected in the toothfish fishery for the 2003 season (this is ... presence of the huge C2 iceberg severely altered the fisher's behaviour in 2003. The vessels were ...
Meeting Document : WG-FSA-03/44 : Autor(es): M.L. Stevenson, S.M. Hanchet and P.L. Horn (New Zealand)
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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 : Autor(es): R.E. Mitchell, D.J. Agnew, T. Carruthers, J. Clark, L. Ross (United Kingdom) and J. van Heerden (South Africa)