Résultats de la recherche
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Propositions de la Fédération de Russie visant à définir des critères communs pour la création d'AMP dans la zone de la Convention
Abstract: Based on an analysis of the legal and scientific aspects of the current situation ... regarding the establishment of MPAs in the Convention Area, this paper considers procedural and ... implementation measures to manage a single process for the scientifically based designation of MPAs and to ... regulate their operation by the CCAMLR Commission. Author(s): Delegation of the Russian Federation Title ...
Meeting Document : CCAMLR-38/30 : Auteur(s): Делегация Российской Федерации
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Choosing distance between acoustic survey tacks
mathematical model was used to show that the distance between acoustic survey tacks can reasonably be selected ... on the basis of typical size of the surveyed region, allowable relative error in the biomass estimate ... , and the variation coefficient of the density values of the krill concentrations. It is recommended ... that the suggested criterion be applied in real hydroacoustic surveys. File: 08-Kalikhman-et-al.pdf ... mathematical model was used to show that the distance between acoustic survey tacks can reasonably be selected ... on the basis of typical size of the surveyed region, allowable relative error in the biomass ... estimate, and the variation coefficient of the density values of the krill concentrations. It is ... recommended that the suggested criterion be applied in real hyroacoustic surveys. CHOISIR LA DISTANCE ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 153-164 : Auteur(s): Kalikhman, I.L., Z.I. Kizner, B.R. Zaripov and W.D. Tesler
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Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity
= 31.6 mm; standard deviation = 6.6 mm), at the Cape Shirreff field station, Livingston Island ... of seawater (0.6??temperature??3.6 °C). Between each pulse, the krill moved within the fixed-boundary ... -tank and the modulated reverberations were sensed bi-statically with three omnidirectional receivers ... . At each center frequency (fc), the coherent energy in 200-pulse ensembles identified sound scattered ...
Meeting Document : WG-EMM-02/49 : Auteur(s): D.A. Demer and S. G. Conti (USA)
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Characteristics of krill aggregations in 48.4 subdivision during January–February 2000
type in relation to water mass structure and dynamics. The distributional features and physical ... characteristics of some 2400 krill swarms detected and sized acoustically in the study area have been described ... been made an analysis of krill biomass horizontal and vertical distributions in the study area in ... relation to characteristics of the aggregations recorded. The effect of spatial distribution of krill ...
Meeting Document : WG-EMM-01/42 : Auteur(s): S.M. Kasatkina, A.P. Malyshko, V.N.Shnar and O.A. Berezhinskiy (Russia)
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A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)
Abstract: A model is set up for the operation (which includes both searching and fishing) of a ... whose parameters are determined primarily from the scientific FIBEX surveys. Output from the model of ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ...
Meeting Document : WS-KCPUE-89/04 : Auteur(s): D.S. Butterworth (South Africa)
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A simulation study of krill fishing by an individual JAPANESE trawler
Abstract: A model is set up for the operation (which includes both searching and fishing) of a ... whose parameters are determined primarily from the scientific FIBEX surveys. Output from the model of ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ...
Meeting Document : SC-CAMLR-VII/BG/37 : Auteur(s): D.S. Butterworth (Invited Expert)
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A simulation study of krill fishing by an individual Japanese trawler
/ Description: A model is set up for the operation (which includes both searching and fishing) of a Japanese ... parameters are determined primarily from the scientific FIBEX surveys. Output from the model of the operation ... is compared with (and partially tuned to) statistics for a sample of data from the commercial fishery ... . A major inconsistency is found: haul times are a factor of 4-5 times greater in reality than in the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 1–108 : Auteur(s): Butterworth, D.S.
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Diets of Antarctic toothfish estimated from fatty acids and stable isotopes
Antarctic toothfish, by-catch and their stomach contents were collected for the past five years in the eight ... the particular importance of accumulation of lipid deposits in their tissue. Toothfish trophic niche ... resource utilization between the Ross Sea shelf (RSS) and the deep-sea slopes the western Indian Ocean ... sector (IOS) and the slope towards the Pacific Ocean sector (POS). FA profiles of toothfish were ...
Meeting Document : WG-FSA-17/12 : Auteur(s): C.-K. Kang, S.-G. Choi, J. Lee, J. Lee and D. An
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Report on fish by-catch on exploratory fishing in Divisions 58.4.1 and 58.4.2
undertaken in Divisions 58.4.1 and 58.4.2 during the 2012 to 2018 seasons. Fish by-catch comprised 14 species ... or groups of species. In 2018, by-catch represented 12% of the total catch (43 tonnes over 307 tonnes ... of Dissostichus spp.) in Divisions 58.4.1 and 58.4.2. 98% of the biomass was represented by 2 ... families: Macrouridae and Channichthyidae. The others most common by-catch species or families were ...
Meeting Document : WG-FSA-18/28 : Auteur(s): C. Péron, P. Yates, D. Maschette, C. Chazeau, P. Ziegler, D. Welsford, N. Gasco and G. Duhamel
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ADÉLIE PENGUIN SURVIVAL: AGE STRUCTURE, TEMPORAL VARIABILITY AND ENVIRONMENTAL INFLUENCES
Abstract: The driving factors of survival, a key demographic process, have been particularly ... challenging to study, especially for winter migratory species such as the Adélie penguin (Pygoscelis adeliae ... what environmental features they are most likely to respond to. Here we examine the influence of ... environmental fluctuations, broad climatic conditions and the success of the breeding season prior to winter on ...
Meeting Document : WG-EMM-11/P4 : Auteur(s): L. Emmerson and C. Southwell