Resultados de la búsqueda
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Seguimiento, control y vigilancia llevados a cabo por Chile temporada 2016/17; y observaciones para el mejoramiento del Sistema de Inspecciones
Abstract: During the 2016/17 season seven inspections of foreign fishing vessels were carried out ... by Chile, and one sighting was recorded. This document summarises the activities carried out in ... Subarea 48.1. From the work carried out by the inspectors, various comments have arisen that may ... contribute to the enhancement of the CCAMLR System of Inspection. Author(s): Delegation of Chile Title ...
Meeting Document : CCAMLR-XXXVI/15 : Autor(es): Delegación de Chile
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Distribution of mackerel icefish by size-group at South Georgia
Abstract: The depth distribution of C. gunnari was investigated with data from 9 groundfish ... surveys between 1986 and 2000 using data from representative, randomly located hauls. The data set for ... abundance (number of fish km?2) indicated that depth of maximum abundance increased as the size of the fish ... increased. The size range of all year classes was contained within the sampling depth of the surveys. The ...
Meeting Document : WAMI-01/16 : Autor(es): A.W. North and I. Everson (United Kingdom)
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KRILL FISHERY REPORT: 2009 UPDATE
). Most of this catch was taken in Subarea 48.2 (51316 t) with the remainder in Subarea 48.1 (31533 t ... ). The forecast total catch of krill for the current season falls in the range 109000-147000 t. This ... compares with 156521 t of krill reported in STATLANT data in 2007/08. Recent developments in the krill ... fishery include: improvements in the ‘haul-by-haul’ data from the continuous fishing system; a Ukrainian ...
Meeting Document : WG-EMM-09/06 : Autor(es): Secretariat
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Effect of missing modes on calibration sphere target strengths (ICES CM 1996/b: 37, Fish Capture Committee)
used in the calibration of echo sounder systems, can be affected by the manner of suspension. This ... hypothesis is investigated in the context of reported experimental calibration trials with the SIMRAD EK500 ... tungsten carbide with 6% cobalt binder. Theoretical target strengths are computed for each sphere for the ... reported measurement conditions for a series of cases in which single vibration modes remain unexcited. The ...
Meeting Document : WG-EMM-96/46 : Autor(es): Foote, K.G.
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Dynamic model of krill Euphausia superba swarm
Abstract: During the Italian Antarctic Expeditions to the Ross Sea, in the years 1989- 1994 ... , using the 38 and 120 kHz BioSonics dual-beam hydroacoustic system, numerous swarms of krill Euphausia ... (Okubo, 1980, 1986). It was assumed that the above mentioned model can also be applicable to krill swarms ... . Using physical parameters of the krills' swarm (density, length), the above assumption was verified ...
Meeting Document : WG-EMM-95/68 : Autor(es): Kalinowski, J., Azzali, M.
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Determination of local density of Dissostichus eleginoides in Subarea 48.3 - CCAMLR protocol local depletion experiment Ihn Sung 66 - January 1994
Abstract: A long lining stock depletion trial was undertaken by the Korean longliner Ihn Sung 66 ... in January 1994 in accordance with CCAMLR Conservation Measure 69/XII and the Experimental Protocol ... circulated by the Secretariat in COMM CIRC 93/50. The results of this experiment are presented. Leslie and ... DeLury methods are tested using simulations to determine the most appropriate method. The Leslie method ...
Meeting Document : WG-FSA-94/22 : Autor(es): C. Jones and G. Parkes (United Kingdom)
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A fish stock assessment survey design for Subarea 48.1
Abstract: There is a lack of information regarding the abundance of exploitable finfish in ... the Working Group on Fish Stock Assessment to assess the stocks in this region and assist the ... Scientific Committee in giving management advice to the Commission. A stratified random survey is proposed ... ; the strata correspond to depth ranges (stratum 1: 50-150 m; stratum 2: 151-250 m; stratum 3: 251-500 m ...
Meeting Document : WG-FSA-92/07 : Autor(es): G. Watters (USA)
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Application of continuous time Markov chains to modelling animal movement: estimation of movement rates and retention times for Patagonian toothfish
Abstract: The study of animal movement and distribution has been a central focus in ecology since ... the inception of the science. However, continuous-time, discrete state models have received relatively ... , including an inferential framework which can accommodate heterogeneous sampling effort. We explore the ... apply the model to estimate the equilibrium distribution of Patagonian toothfish in the region around ...
Meeting Document : WG-FSA-SAM-06/16 : Autor(es): C. Wilcox, M. Bravington and D. Peel (Australia)
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Southern Ocean Network of Acoustics (SONA)
Abstract: Southern ocean processes are intimately linked to some of the most pressing challenges ... faced by society today: climate change, ocean acidification and the sustainable management of marine ... resources. To address these challenges we need to improve our understanding of the natural causes and ... through international collaboration, will enable us to measure the baseline and future trends in the ...
Meeting Document : WG-EMM-13/17 Rev. 1 : Autor(es): S. Fielding (United Kingdom), E. Josse (France), R. Kloser (Australia), R. O’Driscoll (New Zealand), C. Reiss (USA) and G. Skaret (Norway)
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Using vessel acoustics to detect diving patterns of krill foraging predators automatically: Development of a novel method for quantifying impact of krill fishing on seals and penguins
Abstract: The aim of this work was to assess the possibilities of automatically generating a ... of diving predators in the data is feasible. A relatively low detection probability of our algorithms ... compared to the manual detections, suggest that there is significant room for improvement. Given the ... caveats of an imperfect methodology, the results document the possibilities to automatically extract, with ...
Meeting Document : WG-EMM-15/25 : Autor(es): T.A. Klevjer, O.R. Godø and B. Krafft (Norway)