Résultats de la recherche
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Developing a Ross Sea region medium-term data collection plan
Abstract: Data are collected for use in scientific research, the results of which are used to ... the goals the management wishes to achieve. The Scientific Committee has recommended the development ... of a specific data collection and research plan for the Subarea 88.1 and 88.2 fisheries (SC ... -CCAMLRXXVII paragraph 4.160 vi). The long-term goals of the Ross Sea fishery based on Article II of CAMLR can ...
Meeting Document : WG-FSA-10/32 : Auteur(s): S. Mormede and S. Hanchet (New Zealand)
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Comparison of equal-area cylindrical and circular piston transducers
choosing among alternative transducer geometries. This contribution addresses the problem of choosing ... between cylindrical and circular piston transducers by comparing the performance of the two according to ... the principle that the acoustically active areas be equal. Computations are performed with the actual ... dimensions of six fabricated cylindrical transducers, whose beam patterns have been measured by the ...
Meeting Document : WG-EMM-95/08 : Auteur(s): Foote, K.G.
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Interannual variability of standardised index of krill abundance in Area 48 according to CCAMLR fishery statistics database
Abstract: Standardization of fishing effort on the basis of the generalized linear models with ... mixed effect (GLMM) allows to the authors to analyze the specific character of the spatial distribution ... of fishery at the scale of Area 48, Subareas 48.1-48.3, SSMUs and years using CAMLR statistical ... database. The interannual variability of the standardized CPUE related to the fishery performance was ...
Meeting Document : WG-EMM-10/17 : Auteur(s): P.S. Gasyukov and S.M. Kasatkina (Russia)
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GIS ‘ChartMaster’ for aquatic living resources research in Antarctic
modern oceanography, marine biology and fishery monitoring. The Russian Federal Research Institute of ... Fishery and Oceanography (VNIRO) has developed the new GIS ‘ChartMaster’ designed for processing the data ... provided by the fisheries oceanographic surveys. This software allows: to analyze the data of hydro ... and abundance; to estimate the instant biomass in the surveyed area; to carry out the survey planning ...
Meeting Document : WG-SAM-13/04 : Auteur(s): V.A. Bizikov, S.M. Goncharov, A.V. Polyakov, S.B. Popov and A.F. Petrov (Russia)
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Monitoring a marine ecosystem using responses of upper trophic level predators
Abstract: 1. This study examined the changing status of the marine ecosystem at the island of ... index (CSI). 2. Sensitivity analyses showed that missing values had a large effect upon the accuracy of ... the CSI but this effect was reduced if the individual variables were highly correlated. The level of ... correlation and proportion of missing values within the empirical data set were within the acceptable range ...
Meeting Document : WG-EMM-01/25 : Auteur(s): I.L. Boyd and A.W.A. Murray (United Kingdom)
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Matlab code for calculating krill biomass in a survey area
Abstract: In 2010, CCAMLR tasked the Subgroup on Acoustic Survey and Analysis Methods (SG-ASAM ... ) to recalculate the catch limit for Antarctic krill in the Scotia Sea based on updated acoustic ... algorithms developed since the first calculation in 2000. Subsequent to the 2010 SG-ASAM, code used to obtain ... biomass (B 0; tonnes) estimates was compiled and provided to the Secretariat for reference and use by ...
Meeting Document : SG-ASAM-16/03 : Auteur(s): A. Cossio, J. Renfree and C. Reiss
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USING ECOSYSTEM STRUCTURE TO IDENTIFY FINER-SCALE SSMUS FOR OCEANIC AREAS IN SUBAREAS 48.1 TO 48.3
Abstract: One of the main issues in the management of the krill fishery is finding a spatial ... subdivision of catches that allows CCAMLR to achieve its objectives for both the fishery and the ecosystem ... initial framework of small scale management units (SSMUs) in subareas 48.1 to 48.4 based on the spatial ... structure of the ecosystem. This framework is hierarchical. It recognises a distinction between coastal ...
Meeting Document : WG-EMM-11/18 : Auteur(s): S.L. Hill and J. Silk (UK)
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An illustrative management procedure for exploring dynamic feedback in krill catch limit allocations among small-scale management units
Abstract: A Management Procedure (MP) approach is proposed to assist in advising regarding the ... subdivision of the precautionary catch limit for krill among 15 small-scale management units (SSMUs) in the ... Scotia Sea to reduce the potential impact of fishing on land-breeding predators. The Spatial Multi ... which simulates the “true” dynamics of the resource with tests across a wide range of scenarios for the ...
Meeting Document : WG-EMM-06/28 : Auteur(s): É. Plagányi and D. Butterworth (South Africa)
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Revised research plan for toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2011/12
Abstract: A tagging survey in SSRUs B and C in Division 58.4.4 a & b was initiated in the ... 2010/11 fishing season with the aims of providing the data required for assessments of the population ... structure, size, movement and growth of Dissostichus spp. in the centred area of Division 58.4.4 a & b ... . An approximate stock biomass level of Dissostichus spp. in the survey area (SSRUs B and C in Division ...
Meeting Document : WG-FSA-11/15 Rev. 1 : Auteur(s): K. Taki, T. Iwami and M. Kiyota (Japan)
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Biomass/CCAMLR krill review
Abstract: Current knowledge of the ecology, biology and life history of the Antarctic krill ... Euphausia superba Dana is reviewed. Emphasis is placed on recent developments, particularly on the results ... of various national and international research programmes loosely co-ordinated under the auspices of ... which are either directly or indirectly applicable to the effective management of krill exploitation ...
Meeting Document : SC-CAMLR-VII/BG/39 : Auteur(s): D.G.M. Miller and I. Hampton (South Africa)