Resultados de la búsqueda
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Exchange of wandering albatrosses Diomedea exulans between the Prince Edward and Crozet Islands: implications for conservation
Albatrosses and Petrels to effect an improved conservation status for the wandering albatrosses of the two ... only one fledgling from Marion Island has been recorded breeding on Possession. The wandering ... albatrosses of the two island groups form a metapopulation that ideally should be conserved as a single unit ... . Its is suggested that France and South Africa collaborate through the Agreement on the Conservation of ...
Meeting Document : WG-EMM-03/41 : Autor(es): J. Cooper (South Africa) and H. Weimerskirch (France)
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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
2010/11 fishing season with the aims of providing the data required for assessments of the population ... . An approximate stock biomass level of Dissostichus spp. in the survey area (SSRUs B and C in Division ... medial estimates using simple Petersen (1583 and 2751 ton) were similar to those under the two scenarios ... small numbers of recapture. The estimations using other two methods were a half to a quarter smaller ...
Meeting Document : WG-FSA-11/15 Rev. 1 : Autor(es): K. Taki, T. Iwami and M. Kiyota (Japan)
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The utilization of seabird censuses for krill monitoring
databases, calling for international cooperation on the subject. File: 16-Marschoff-et-al.pdf ... Paper Title: The utilization of seabird censuses for krill monitoring Abstract / Description ... correspondence analysis. Contour plotting, profile analysis and tests for equality of covariance matrices proved ... technique will allow the discrimination of krill levels by means of bird counts thereby providing an ... providing an efficient tool for statistical tests of significance. The most promising approach seems to be ... with greater databases, calling for international cooperation on the subject. Est exploree la ... mentioned species are more or less suitable for direct observation, at the present state of the art it is ... sample the same spot under the same conditions in two consecutive years. Moreover, other parameters ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 393-425 : Autor(es): Marschoff, E.R., J.G. Visbeek and L.R. Fontana
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Approaches to data collection and analysis for detecting and quantifying functional overlap at the scale of the individual vessell
Abstract: Summary Over the past years, the subject of whether there is a functional overlap ... Groups. Specifically, these discussions centre around two key issues: a) whether there are potential ... , and b) how krill acoustic surveys and transects could also be used to provide data for wider ecosystem ... monitoring. The Scientific Committee noted that consideration is needed on what specific scientific questions ...
Meeting Document : WG-EMM-18/33 : Autor(es): M. Söffker and N. Gasco
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In situ target strength measurements of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 khz and 200 khz, corroboration of scattering models, and a statistical technique for delineating species
scattering models and empirically derived distributions of animal sizes, a technique is developed for ... echograms included dense swarms with virtually equivalent Sv at the two frequencies. The ability for this ... method to delineate salps from krill is highly dependent on the degree to which the two CDF's differ ... (Euphausia superba and Salpa thompsoni) at 120 kHz and 200 kHz. Concurrently, a two meter Isaacs-Kidd ...
Meeting Document : WG-Krill-94/12 : Autor(es): D.A. Demer and R.P. Hewitt (USA)
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Conservation Measure Conservation Measure 102/XV (1996)
. el area delimitada pot 52°30’S, 40°W; 52°30’S, 44°W; 54°30’S, 40°W y 54°30’S, 44°W. En caso de preverse ... una captura de Electrona carlsbergi superior a 20 000 toneladas en la temporada 1996/97, las principales ... Limits on the Fishery for Dissostichus eleginoides in Statistical Subarea 48.3 for the 1996/97 ...
Conservation Measure : 102/XV (1996)
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Committee for Environmental Protection: 2016 Annual Report to the Scientific Committee of CCAMLR
meeting. The terms of reference for the workshop focused primarily on two areas of overlapping interest ... Abstract: Cooperation between the Scientific Committee of CCAMLR (SC-CAMLR) and the Committee for ... Environmental Protection (CEP) has been steadily increasing over the last few years to the mutual benefit of ... both. In order to avoid duplicate reporting between the two committees, and following discussions ...
Meeting Document : SC-CAMLR-XXXV/BG/09 : Autor(es): CEP Observer to SC-CAMLR (Dr P. Penhale, USA)
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Assessment models for Patagonian toothfish in research block 5843a_1 of Division 58.4.3a, Elan Bank
Abstract: I made two sensitive runs of CASAL catch at length models (LENGTH_MODEL) for stock ... years 2004/05 to 2012/13 following the recommendation during the last WG-SAM meeting. The two models are ... between the two models were set as follows: year class strength (YCS) was fixed; parameters of ALK were ... status assessments of Dissostichus eleginoides in research block 5843a_1 in Division 58.4.3a for the ...
Meeting Document : WG-FSA-14/22 : Autor(es): K. Taki (Japan)
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Fitting a von Bertalanffy growth model to length-at-age data accounting for length-dependent fishing selectivity and length-stratified sub-sampling of length frequency samples
both age and measure for length there are two potential response-biased sampling processes when length ... process involving a particular gear, and (ii) the method of on-deck sub-sampling fish for ageing from the ... used to estimate the von Bertalanffy parameters for simulated and real data on the growth of the ... ) then both these sampling processes are response-biased. Response-biased sampling and its effect on ...
Meeting Document : WG-FSA-SAM-05/13 : Autor(es): S.G. Candy (Australia)
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Scientific contribution to the 2016 review of Conservation Measure 51-07: Part 2 – outcomes from the application of the risk assessment framework for distributing the krill trigger level in Area 48
for distributing the krill trigger level in Area 48, which was described in Part 1 of this work (WG ... -FSA-16/47). This second part has two additional components of work: (i) results of the analyses using ... , including consideration of the matters raised by WG-EMM in 2016. The framework presented in Part 1 is shown ... to enable assembling relevant data on krill, predators, management and the fishery to assess the ...
Meeting Document : WG-FSA-16/48 Rev. 1 : Autor(es): A. Constable (on behalf of the e-group on CM 51-07 WG-EMM review)