Résultats de la recherche
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Viability criteria for tagging toothfish
Abstract: CCAMLR Conservation measures currently require vessels to tag only toothfish with a ... this requires an objective evaluation of the probability of survival of each fish to be tagged, which ... in turn requires objective criteria that link observable characteristics to survival. This paper ...
Meeting Document : WG-SAM-12/27 : Auteur(s): S. Parker (New Zealand)
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GEF proposal – progress report 2
Secretariat be tasked with developing a proposal for funding support from the Global Environment Facility to ... Abstract: In 2014, the Scientific Committee endorsed a proposal from South Africa that the ...
Meeting Document : SC-CAMLR-XXXIV/BG/24 : Auteur(s): CCAMLR Secretariat
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Report on the survey in Subarea 48.2 in 2015–2017
48.2 on board the Ukrainian vessel SIMEIZ. Survey was conducted in accordance with the recommendations ... of the Scientific Committee and Commission. Obtained data will be used for the future biomass ... estimation of the target species and making decision for the possible future fishing on that fishing ground ...
Meeting Document : WG-FSA-17/43 : Auteur(s): Delegation of Ukraine
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Proposition pour améliorer la sécurité des observateurs : dispositifs de communication indépendant bidirectionnel par satellite et balises de détresse personnelle
of the CCAMLR System of Scientific Observation (SISO) to require that observers be equipped with ...
Meeting Document : CCAMLR-XXXVII/20 : Auteur(s): Delegation of the USA
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Is our attempt to estimate biomass of Antarctic fish from a multi-species survey appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited
acoustic survey combined with a number of identification hauls might be the most promising approach to ... . rossii at the same time. These surveys are conducted under the assumptions that the target fish species ... violated in the case of N. rossii which shows an abundance which is extremely skewed in that a large ... thinly populated. In order to provide more accurate estimates of the species it is suggested that an ...
Meeting Document : WG-FSA-03/12 : Auteur(s): K.-H. Kock (Germany), M. Belchier (United Kingdom) and C.D. Jones (USA)
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Comparison of NASC values calculated by swarm-based and grid-based acoustic data processing methods for Antarctic krill density estimation
-based acoustic data processing methods. All parameter settings were consistent with the reports of SG ... -ASAM-2017 except that the dB difference window of Sv 120 kHz-Sv 38kHz is set 0 to 20 dB. And the two ... Antarctic krill density estimation. The comparisons suggest that the calculated NASC values of swarm-based ... four surveys. Therefore, it is concluded that the krill density estimated by swarm-based and grid-based ...
Meeting Document : SG-ASAM-18/04 Rev. 1 : Auteur(s): X. Yu, X. Wang and X. Zhao
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Update on the Top Predator Alliance project, 2013–14 season: Killer whales
TCKW with small and presumably suckling calves. Given that lactation represents a significant energy ... lactation. A comparison of energy expenditure with energy densities of fish prey indicates that available ... Type C killer whales (TCKW), have been identified as the top predators most likely to be directly ... dependency even if limited to a relatively brief period of the year. We conclude that there is a probable ...
Meeting Document : WG-EMM-14/52 : Auteur(s): R. Eisert, M.H. Pinkerton (New Zealand), L. Torres (USA), R.J.C. Currey, P.H. Ensor, E.N. Ovsyanikova, I.N. Visser (New Zealand) and O.T. Oftedal (USA)
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Subarea 48.6 by South Africa and Japan
distribution of sizes, GSI and Fulton’s condition factors for D. mawsoni in Subarea 48.6 suggest that northward ... spawning migration and southward feeding migration as Ross Sea stock. Life history seems to be related to ... that larvae are driven further eastward. We cannot identify an appropriate stock unit currently. The ... addition, we considered that only recaptures for 1 year at liberty is effective to estimate the ...
Meeting Document : WG-SAM-16/07 : Auteur(s): Delegations of Japan and South Africa
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The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill
Abstract: A dominant Antarctic ecological paradigm suggests that winter sea ice is generally the ... sector of the Southern Ocean contradict this view and present the first evidence that the pack-ice zone ... a more favourable food environment for high larval krill growth rates. We found that complex under ... , by providing structures that offer protection from predators and to collect organic material released ...
Meeting Document : WG-EMM-18/P04 : Auteur(s): B. Meyer, U. Freier, V. Grimm, J. Groeneveld, B.P.V. Hunt, S. Kerwath, R. King, C. Klaas, E. Pakhomov, K.M. Meiners, J. Melbourne-Thomas, E.J. Murphy, S.E. Thorpe, S. Stammerjohn, D. Wolf-Gladrow, L. Auerswald, A. Götz, L. Halbach, S. Jarman, S. Kawaguchi, T. Krumpen, G. Nehrke, R. Ricker, M. Sumner, M. Teschke, R. Trebilco and N.I. Yilmaz
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Investigations of krill transport factors in the local areas in the Scotia Sea: variability of krill distribution in the fishing grounds under the transport impact
samples form the basis of this work. It is shown that the multiple replacements of the water masses in ... each study areas were accompanied with pulsatory pattern of krill transport, i.e. krill transported ... biomass portions with different commercial importance were transported into the fishing grounds. The ... fleet. The authors come to a determination that the development of krill stocks management procedures ...
Meeting Document : WG-EMM-07/17 : Auteur(s): S.M. Kasatkina and V.N. Shnar (Russia)