Resultados de la búsqueda
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Predicting fishing ground accessibility in the Antarctic Weddell Sea
ice zone. We use sea ice concentration data from 2002-2017 that cover the wider Weddell Sea to ... establish statistical models of (i) accessibility, i.e. the probability that a particular area is navigable ... by fishery vessels at a given time, and of (ii) repeated accessibility, i.e. the probability that a ... requested by CCAMLR research fishery regulations. Our findings indicate that under the actual sea ice ...
Meeting Document : WG-SAM-18/01 : Autor(es): H. Pehlke, K. Teschke and T. Brey
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SELECTIVITY OF CONVENTIONAL AND CONTINUOUS TECHNIQUES OF KRILL FISHERY
size composition of krill caught by conventional and continuous techniques of fishery which could be ... connect with the trawls selectivity weren’t found. At the same time results of the analysis didn’t ... indicate that there were no differences between selectivity of conventional and continuous trawls. We ... assume that the possible influence of differences between selectivity of fishing gears were exceeded by ...
Meeting Document : WG-EMM-11/14 : Autor(es): D. Sologub (Russia)
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Testing the performance of a recompiled version of TrawlCI to calculate confidence intervals of abundance in surveys of Patagonian toothfish (Dissostichus eleginoides) and mackerel icefish (Champsocephalus gunnari)
. The performance of the recompiled version was compared with that of the original version. The ... enable it to be run within the DOS emulator of recent versions of the Microsoft Windows operating system ... that the differences evident from these tests are unlikely to significantly influence the estimated ...
Meeting Document : WG-FSA-SAM-05/14 : Autor(es): T.D. Lamb, W.K. de la Mare and A.J. Constable (Australia)
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On the need to determine the level of krill escapement mortality in the Antarctic krill fishery
estimate krill escapement mortality should be introduced on all krill fishing vessels that carry scientific ... with the need to have systematic observer coverage in the Antarctic krill fishery. Experiments to ... observers onboard. To provide krill escapement mortality experiments it is proposed that data on speed of ...
Meeting Document : WG-EMM-10/10 : Autor(es): L. Pshenichnov and G. Milinevsky (Ukraine)
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Observer coverage in CCAMLR krill fisheries from 2011 to 2015
the number of days observers were present on vessels as this is a consistent metric that can be ... discussion at the Commission for a number of years, as the krill fishery is the only CCAMLR fishery that does ... past five years comparing the number of days of fishing conducted by vessels in the krill fleet, with ...
Meeting Document : WG-EMM-16/11 : Autor(es): CCAMLR Secretariat
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Propuesta para modificar la Medida de Conservación 32-18
fins of any shark that cannot be released alive remain naturally attached through the point of first ... States propose to amend CCAMLR Conservation Measure 32-18 to prohibit shark finning and require that all ... landing. This is consistent with United Nations General Assembly (UNGA) resolutions on sustainable ...
Meeting Document : CCAMLR-38/08 Rev. 1 : Autor(es): Delegations of Argentina, Australia, European Union, Norway, Uruguay and USA
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PROGRESS REPORT (2008-2009) ON THE ACTION PLAN AIMED AT REDUCING SEABIRD BY-CATCH IN THE FRENCH EEZs IN STATISTICAL DIVISION 58.5.1 AND SUBAREA 58.6
list the set of measures that France is implementing and will implement in the next few years to limit ... -catches for the period September 2008–August 2009. Furthermore, this paper has been written in response to ...
Meeting Document : SC-CAMLR-XXVIII/11 : Autor(es): Delegation of France
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Pursuit of polynyas in the Antarctic peninsula area
1987 was pursed from beginning on August 1 to end on October 20. The shape of the polynya changed ... remarkably in several days. We speculated that annual variability of sea ice cover and consequently polynyas ...
Meeting Document : WG-EMM-97/69 : Autor(es): Kimura, N., Shibazaki, K., Matsumura, S., Naganobu, M., Okada, Y.
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Leslie analyses of commercial snow crab trap data: a comparative study of catchability coefficients
that this approach may be feasible. Author(s): J.M. Hoenig, E.G. Dawe, D.M. Taylor, M. Eagles and J ... from a survey conducted with traps. One way to calibrate the catch rates is to examine available ... the Leslie analysis. Data from several different regions can be made comparable by expressing catches ...
Meeting Document : WS-CRAB-93/13 : Autor(es): J.M. Hoenig, E.G. Dawe, D.M. Taylor, M. Eagles and J. Tremblay (USA)
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Detection of systematic change in Adélie penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover as a covariate
Adélie penguin colony with the aim of determining minimum sample sizes required to detect systematic ... sudden step change in parameter values from one average level to another. Modelling showed that change of ... the latter form could be more quickly and powerfully detected at a range of effect sizes than could ... three years or alternatively, with equal power, a 3.75% annual increase in trip duration after 12 years ...
Meeting Document : WG-EMM-05/22 : Autor(es): J. Clarke, C. Southwell and L.M. Emmerson (Australia)