Résultats de la recherche

1. Modelling variability and estimating power to detect change in Adélie penguin fledgling weights

   finding is that it may be possible to simplify future monitoring, such that fledgling weight is measured ... variability of fledgling weights. These models assume that data are collected during a fixed CEMP five-day ... period corresponding to the average peak fledging period. Modelling assumes that fledgling weights are ... year, but there was no evidence that the rate of decline differed between years. A consequence of this ... the rate of decline differed between years. A consequence of this finding is that it may be possible ... was assumed that the Si, si and eij terms are independent and are normally distributed with mean 0 ... for between-year variation in the within- year decline suggests that it may be possible, despite the ... time of peak fledging as a covariate, which could be a subject of future work. A further finding with ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 191–200 : Auteur(s): Emmerson, L.M., C. Southwell and J. Clarke

2. Vessel notification

   Inspection if it were to be combined with a reliable system of advance notification of fishing vessels ... Abstract:  A feasibility study of a modified NAFO ‘Hail’ System which requires that CCAMLR Flag ... System of Inspection. The study has found that the modified Hail system could strengthen the System of ... compared with the performance of a satellite-based vessel monitoring system (Inmarsat-C/GPS), which is also ...

   Meeting Document : CCAMLR-XIV/13 : Auteur(s): Secretariat

3. Proposition de révision des catégories de statut de conformité dans la MC 10-10

   the text of some measures that could be read in ways that allowed for differing interpretations and to ... report in accordance with the provisions of Conservation Measure 10-10. This report has facilitated the ... -compliance with some conservation measures. The report and its discussion have made it possible to clarify ... refine some measures that were in force, and have contributed to general diagnostics of compliance levels ...

   Meeting Document : CCAMLR-XXXV/27 : Auteur(s): Delegación de Chile

4. Report on bottom fisheries and vulnerable marine ecosystems: draft template and workplan

   . Discussions to date would suggest that the report be routinely update each year in WG-FSA but with input from ... future work and identify the key methods, parameters or field strategies that need to be undertaken ... arise from WG-FSA. It is envisaged that, following comments by WG-EMM, a draft report will be generated ... Abstract:  The WG-FSA Subgroup on VMEs was tasked with providing a draft template of a Report on ...

   Meeting Document : WG-EMM-10/15 : Auteur(s): WG-FSA Subgroup on VMEs

5. Acoustic discrimination of southern ocean zooplankton

   therefore demonstrate that with the use of echo intensity data alone, gathered using hardware commonly ... upper 250 m of the water column. These layers were fished with a LonghurstHardy plankton recorder (LHPR ... ) and a multiple-opening 8 m2 rectangular mid-water trawl (RMT8). Analysis of catches suggested that ... copepod Rhincalanus gigas. Instrumentation on the nets allowed their trajectories to be reconstructed ...

   Meeting Document : WG-EMM-97/54 : Auteur(s): Watkins, J.L., Brierley, A.S., Goss, C., Ward, P.

6. AN ECOSYSTEM-BASED MANAGEMENT PROCEDURE FOR KRILL FISHERIES: A METHOD FOR DETERMINING SPATIALLY-STRUCTURED CATCH LIMITS TO MANAGE RISK OF SIGNIFICANT LOCALISED FISHERIES IMPACTS ON PREDATORS.

   . This framework formalises the decisions that need to be made in dealing with an ensemble of food web ... conditions to be achieved and the uncertainties that need to be managed and does not assume an understanding ... of predator-prey dynamics beyond that evident in the data. It is a natural extension of the current ... advice can be updated as improvements are made in any component of the procedure, including the provision ...

   Meeting Document : WG-SAM-08/16 : Auteur(s): A. Constable and S. Candy (Australia)

7. An ecosystem-based management procedure for krill fisheries: a method for determining spatially-structured catch limits to manage risk of significant localised fisheries impacts on predators

   .  This framework formalises the decisions that need to be made in dealing with an ensemble of food web ... conditions to be achieved and the uncertainties that need to be managed and does not assume an understanding ... of predator-prey dynamics beyond that evident in the data.  It is a natural extension of the current ... advice can be updated as improvements are made in any component of the procedure, including the provision ...

   Meeting Document : WG-EMM-15/36 : Auteur(s): A. Constable and S. Candy (Australia)

8. Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides)

   that L m50 occurs at 78.5 cm total length for male and 98.2 cm for female fish. In 1997 the results for ... male fish were essentially the same. For female fish there is evidence that in 1997 a significant ... allowing for this bias indicates that L m50 for female fish in 1997 was no different to that for 1996. The ... was that, due to the closure of the fishery, there were no data for August 1996; this category ... condition at that time was 96%, the effect would be negligible at the population level. Analysis of the ... PROBITANALYSIS procedure, but it can be seen from Table 3 that the confidence limits for the estimated values ... is declining in successive months. We offer no explanation for this but note that it may be a ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 37–46 : Auteur(s): Everson, I. and A.W. Murray

9. Population assessment of Patagonian toothfish in Subarea 48.4 – 2011 update

   suggest that further data on the D. eleginoides population at Saunders island should be acquired, with ... . eleginoides in 48.4 South. We also propose that directed fishing on D. mawsoni should not be permitted in 2011 ... , as an alternative to the catch at length data that were the only such data available in 2010. The ... second part of the experiment (2009 – 2011) show that although CPUE of D. eleginoides is very low there ...

   Meeting Document : WG-FSA-11/38 : Auteur(s): J. Roberts, R. Mitchell and R. Wakeford (United Kingdom)

10. Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach

    vary. In common with other ommastrephids, the species is probably semelparous. It is proposed that the ... consumption data because comprehensive sampling can be carried out during their breeding seasons. A ... 000 tonnes, with an upper estimate of 550 000 tonnes if less reliable data are included. M. hyadesi ... spawns between autumn and mid-summer with peak hatching in winter/spring. Its life span has not been ... Convention Area suggest that M. hyadesi may live for two years, but this may vary. In coinmon with other ... fishing season to avoid direct competition with what is perceived to be the most sensitive predator ... 96 9 6 9 6 It is a safe assumption that M. hyadesi, in common with all the better-known ... indication of its production level. The problem is to estimate the proportion of this that could be ...

    Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 125–139 : Auteur(s): Rodhouse, P.G

Pages