Résultats de la recherche
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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 ... mentioned species are more or less suitable for direct observation, at the present state of the art it is ... test for multinormality, but will give an idea of the distributional· properties of data, which is ... krill abundance and comparisons from year to year. Contour plotting of the position measures for ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 393-425 : Auteur(s): Marschoff, E.R., J.G. Visbeek and L.R. Fontana
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Improving the process for the establishment of marine protected areas by CCAMLR and Antarctic Treaty Parties
Abstract: This paper examines the obligations upon the Commission for the Conservation of ... marine protected areas (MPAs) and some legal and administrative reasons why these two groups need to co ... current process for declaring MPAs in the areas of application of the Antarctic Treaty and the Convention ... ): Delegation of Australia Title: Improving the process for the establishment of marine protected areas by ...
Meeting Document : WS-MPA-05/09 : Auteur(s): Delegation of Australia
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Using compact video camera technology for rapid deep-sea benthic habitat assessment
Antarctic Division (AAD) for deployment on commercial fishing gear to observe interactions with the Southern ... voyage on the shelf-break of East Antarctica, greatly improved the efficiency of selection of sites for ... camera for broad-scale and rapid deep-sea benthic habitat assessment, during a recent AAD marine science ... quantitative sampling. The system is also promoted for estimates of krill biomass, swarm dynamics and ...
Meeting Document : WG-EMM-10/24 : Auteur(s): G.P. Ewing, R. Kilpatrick, A.J. Constable and D.C. Welsford (Australia)
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A photographic reference set for Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region
by New Zealand with the “sister” otoliths provided to CCAMLR for use by other Members. Two ... Abstract: We provide a photographic reference set for Antarctic toothfish (Dissostichus mawsoni ... photographs are provided for each otolith; one of the prepared otolith surface alone, and a second with ... symbols marking the location where each annulus was counted. The photographs link to an excel spreadsheet ...
Meeting Document : WG-SAM-18/18 : Auteur(s): C. Sutton and S. Parker
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Stability of trip selections for the assessment of Antarctic toothfish in the Ross Sea
Ross Sea was selected on the basis of data quality metrics for individual trips. Initial informative ... selection was stable over time. The 2009 dataset was reduced by omitting data from the two most recent years ... Abstract: A dataset for the 2009 assessment of Antarctic toothfish (Dissostichus mawsoni) in the ... were used to define a range for various data quality metrics considered to be informative with respect ...
Meeting Document : WG-FSA-10/26 : Auteur(s): D.A.J. Middleton (New Zealand)
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REVISED RESEARCH PLAN FOR TOOTHFISH IN DIVISION 58.4.4A and B BY SHINSEI MARU NO. 3 IN 2009/10
system will be employed for 88 research hauls in order to make an evaluation of the stock status and ... various properties of the two gears. Author(s): Delegation of Japan Title: REVISED RESEARCH PLAN FOR ... research focusing on tagging program for a period of 3-5 years to estimate current stock size accurately ... Abstract: The plan submitted to the WG-SAM-09 (Document 09/11) for fishing surveys on stock ...
Meeting Document : WG-FSA-09/12 : Auteur(s): Delegation of Japan
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Precautionary, ecosystem-based management for the Antarctic krill fishery: a work in progress
improving identification of bycatch and for minimizing bycatch. Develop an accurate and consistent method ... for reporting catches with increased precision at two-hour intervals. Author(s): Submitted by ASOC ... provides an update on the krill fishery; discusses the consideration of climate change in krill fisheries ... information into fishery management. Obtain an up to date krill biomass estimate. Agree to a detailed work ...
Meeting Document : SC-CAMLR-XXXVII/BG/17 : Auteur(s): Submitted by ASOC
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
fisheries impact incidentally on an ecosystem, (ii) what should be the conservation objectives for predators ... Paper Title: The ecosystem approach to managing fisheries: achieving conservation objectives for ... in its infancy. A general approach is proposed for maintaining ecological relationships and providing ... for the recovery of depleted populations in food webs supporting fisheries. This paper addresses the ... fisheries impact incidentally on an ecosystem, (ii) what should b e the conservatio~l objectives for ... , iiicludiiig the potential for flow-on effects in the food web. Thus, what would be an operational objective ... 20-30 years, wl~ich is the critical period over which the system should not be irreversibly changed ... years (see text for details). Year Figure 7: Individual productivity for each predator in the trial ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Auteur(s): Constable, A.J
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HEARD ISLAND AND MCDONALD ISLANDS EXCLUSIVE ECONOMIC ZONE 2009/10 IUU CATCH ESTIMATE FOR PATAGONIAN TOOTHFISH
, while unlikely, cannot be fully discounted. The following IUU estimate for the HIMI EEZ makes an ... for Patagonian Toothfish Australia’s Southern Ocean patrol program, combined with its on-the-water ... (HIMI). There have been no apprehensions for illegal fishing in the HIMI EEZ since the Maya V in January ... Resources (CCAMLR) area during the 2009-10 fishing season. Two vessels observed are included in the CCAMLR ...
Meeting Document : CCAMLR-XXIX/BG/29 : Auteur(s): Delegation of Australia
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Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass
implications for acoustic surveys of krill biomass Abstract / Description: Accurate estimation of krill ... those applied in the Antarctic, even after adjustments have been made to account for differences in ... at both 38 and 120 kHz between calibrations conducted at the two locations. At 120 kHz, the required ... -reported by 2.8 dB, leading in turn to an under-estimation of krill biomass by 52.5%. Every effort should ... in continuous operation for at least two days on transit between the point of embarkation for the ... . Here we present calibration data for an EK500 system at 38, 120 and 200 kHz collected over a number ... on each of these occasions. Mean S, and TS transducer gains for each frequency derived from all ... ) calibration spheres required for the higher frequencies stationary in the beam and on axis. In addition, the ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Auteur(s): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe