Resultados de la búsqueda
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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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): D.G.M. Miller and I. Hampton (South Africa)
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KRILL FISHERY REPORT: 2011 UPDATE
and Poland have fished for krill in Area 48. The total catch reported to May 2011 was 110949 t, most ... of which has been taken from Subarea 48.2 between February and May. Approximately 55% of the catch ... has been taken by two vessels using the continuous fishing system. The forecast total catch of krill ... for the season falls in the range 153000-214000 t. In 2009/10, 10 vessels fished for krill in Area 48 ...
Meeting Document : WG-EMM-11/05 : Autor(es): Secretariat
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CCAMLR 2000 revisited
Abstract: The total abundance of krill in the Scotia Sea was estimated from an international ... echosounder and net survey (CCAMLR 2000) to be 44.3 million metric tons (Mt; CV=11.4%), prompting the ... Antarctic Treaty's Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) to ... revise the precautionary catch level for krill in the area from 1.5 to 4 Mt (SC-CAMLR, 2000). By ...
Meeting Document : WG-EMM-07/30 Rev. 1 : Autor(es): D.A. Demer, A.M. Cossio and C.S. Reiss (USA)
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Beach debris survey, Signy Island, South Orkney Islands, 2005/06
Abstract: During the 2005/06 austral summer the sixteenth annual beach debris survey was carried ... from the three study beaches. The debris was counted, measured and classified by type, material, mass ... and size categories. A total of 27 items weighing 24.36kg were collected. The number of items found ... was lower than the total found during the previous season, though the total mass of the waste ...
Meeting Document : SC-CAMLR-XXV/BG/14 : Autor(es): Delegation of the United Kingdom
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Beach debris survey Signy Island, South Orkney Islands, 2004/05
Abstract: During the 2004/05 austral summer the fifteenth annual beach debris survey was carried ... from the three study beaches. The debris was counted, measured and classified by type, material, mass ... and size categories. A total of 38 items weighing 10.95kg were collected. The number of items found ... was higher than the total found during the previous season, though the total mass of the waste ...
Meeting Document : SC-CAMLR-XXIV/BG/17 : Autor(es): Delegation of the United Kingdom