Résultats de la recherche
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Conflict or co-existence? Foraging distribution and competition for prey between Adélie and chinstrap penguins
Orkney Islands during the breeding seasons of 2000 and 2001. Satellite tracking data from of 19 Adélie ... between the two species, however, in a year of normal resource availability (2001) there was no such ... colony than chinstrap penguins (mean 58 km) in 2000 but not in 2001 (mean 58 km and 35 km respectively ... % lower in chinstrap penguins. Both species achieved above average breeding success in 2001. The changes ...
Meeting Document : WG-EMM-02/15 : Auteur(s): A.S. Lynnes, K. Reid, J.P. Croxall and P.N. Trathan (United Kingdom)
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EFFECT OF STERN-SETTING TUNNEL ON THE SINK RATE OF INTEGRATED WEIGHT LONGLINE (IWL)
before the WG-IMAF meeting and it is intended that the results will be tabled separately at the meeting ... stern-setting tunnel, and the proposed experimentation to evaluate this method's effect on the sink ... the exit point at the water line on the vessel's transom. The exit point of the tube is ... understood to be slightly off-centre towards the downward-swing side of the propeller. The sink rate of IWL ...
Meeting Document : WG-FSA-08/38 : Auteur(s): I. Hay and G. Robertson (Australia)
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Proposal for an acoustic krill biomass survey in CCAMLR Division 58.4.2
data to that used on the CCAMLR2000 survey. The survey will be conducted from a single ship and will ... comment so that any suggestions can be incorporated into the final design which will be presented to the ... is intended to produce a new estimate of B0 for this Division so that a revised precautionary catch ... limit can be established by CCAMLR. The planned survey will utilise a standardised design as adopted in ...
Meeting Document : WG-EMM-04/37 : Auteur(s): S. Nicol, S. Kawaguchi, T. Jarvis and T. Pauly (Australia)
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Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2018/19
that catch limits in the ASR be calculated following the trend analysis rules developed by WG-FSA for ... 2014. Few age data are currently available after 2014. We recommend that further ageing of toothfish in ... the ASR be made a priority to develop annual age-length keys and age frequencies. We further recommend ... note that research blocks 882_1, 3 and 4 used the CPUE by seabed area analogy in the past, which has ...
Meeting Document : WG-FSA-2019/12 : Auteur(s): J. Devine and S. Parker
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THE AUSTRALIAN SKATE TAGGING PROGRAM AT HEARD ISLAND AND MCDONALD ISLANDS, CCAMLR DIVISION 58.5.2
which will be used by observers on board fishing vessels. Author(s): G.B. Nowara and T. Lamb (Australia ... last eight years with nearly 6,000 skates tagged. The recapture rate has been low, less than one ... percent. Movement after tagging shows that these fish are recaptured only short distances from where they ...
Meeting Document : WG-FSA-08/55 : Auteur(s): G.B. Nowara and T. Lamb (Australia)
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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
with those estimated using the simple Petersen. Therefore we think that the result using the simple ... studies, tagging rate of 5 fish / ton will be conducted. The comparison test with the experimental gear ... 2010/11 fishing season with the aims of providing the data required for assessments of the population ... . We propose to continue the mark-recapture experiment in SSRUs B and C in the 2011/12 season, with ...
Meeting Document : WG-FSA-11/15 Rev. 1 : Auteur(s): K. Taki, T. Iwami and M. Kiyota (Japan)
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Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?
dependent species could be highly vulnerable to climate change with possible cascading effects on the ... and was unable to discriminate between hypotheses of panmixia, with occasional fluctuations of gene ... scale from samples collected off the tip of the AP, with a signal of increased fragmentation over time ... shelf, the increase of population fragmentation with time, and the inability to capture P. antarcticum ...
Meeting Document : WG-FSA-13/67 : Auteur(s): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)
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Revised research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Subarea 48.6 by South Africa and Japan
in 2016. We have used extracted data provided by CCAMLR Secretariat in this late August for the ... Fulton’s condition factors for D. mawsoni in Subarea 48.6 suggest that northward spawning migration and ... southward feeding migration as Ross Sea stock as suggested in the previous reports. Life history seems to be ... juveniles from around west of Prydz Bay regions are speculated to migrate to Subarea 48.6 and be important ...
Meeting Document : WG-FSA-16/32 Rev. 1 : Auteur(s): Delegations of Japan and South Africa
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Changes to seabird avoidance regulations in Alaska demersal longline fisheries based on scientific research on effectiveness of mitigation measures
at http://www.wsg.washington.edu/pubs/seabirds/seabirdpaper.html and was submitted to CCAMLR in 2001 ... relative to controls with no deterrent). This proposed action is prompted for two reasons: 1) An industry ... results from a study on the effectiveness of seabird avoidance measures that suggest ways that the current ... seabird avoidance requirements can be improved. The objective of the proposed regulatory change is to ...
Meeting Document : WG-FSA-02/53 : Auteur(s): K.S. Rivera (USA)
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Beach debris survey, Main Bay, Bird Island, South Georgia, 2002/03
recorded in 2001/02 and the lowest levels of beach debris during summer since the first year of recording ... with 26% of the total number of items collected during the winter. The total weight of debris collected ... over the last decade, indicates that debris is still being lost by vessels into the marine environment ... . All vessels operating in this region should be encouraged to comply not only the correct waste ...
Meeting Document : SC-CAMLR-XXIII/BG/13 : Auteur(s): Delegation of the United Kingdom