Résultats de la recherche

1. Susceptibility to oxidative stress in different species of Antarctic birds: preliminary results

   cycle very stressful. In the framework of the Italian Research Program in Antarctica (PNRA), blood ... Abstract:  The antioxidant defences in aerobic organisms represent the detoxification pathway ... during the 4-electrons reduction of molecular oxygen to water coupled with oxidative phosphorylation and ... during the activity of several enzymatic systems which produce ROS as intermediates. If the antioxidant ...

   Meeting Document : WG-EMM-99/59 : Auteur(s): S. Corsolini, F. Regoli, S. Olmastroni, M. Nigro and S. Focardi (Italy)

2. Entanglement of Antarctic fur seal Arctocephalus gazella in man-made debris at Signy Island, South Orkney Islands 2001/02

   Abstract:  The results of the sixth annual survey of entanglement of Antarctic fur seals at Signy ... Island, South Orkney Islands are reported for the 2001/2002 summer season. There was a single sighting of ... that the number of entangled fur seals had increased by 118% compared to the previous year, this being ... the highest number recorded at Bird island since1992/93. With the presence of the entangled seal at ...

   Meeting Document : SC-CAMLR-XXI/BG/06 : Auteur(s): Delegation of the United Kingdom

3. A LARGE-SCALE SURVEY OF ADÉLIE PENGUIN BREEDING DISTRIBUTION IN EAST ANTARCTICA

   across the Australian Antarctic Territory in east Antarctica found that approximately half of the species ... sites, increasing the number of known breeding sites in the survey region by 42% from 104 to 148. Author ... Abstract:  A recent gap analysis of knowledge of the breeding distribution of the Adélie penguin ... ’ potential breeding habitat had no evidence of ever being searched. With such incomplete knowledge of the ...

   Meeting Document : WG-EMM-11/34 : Auteur(s): C. Southwell and L. Emmerson (Australia)

4. Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia

   . This represents at least 0.1% of the total Bird Island population and a minimum of 0.4% of animals in ... removed from 170) during the 142 days of the 1988-89 pup-rearing season at Bird Island, South Georgia ... ) formed 59% of collars, nylon string (15%), fishing net (13%) and six other materials comprising the rest ... only on 19% of animals was the collar loose enough potentially to come off. The magnitude of the ...

   Meeting Document : CCAMLR-VIII/BG/05 : Auteur(s): J.P. Croxall, S. Rodwell and I.P. Boyd (United Kingdom)

5. Preliminary tag-recapture based population assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 48.4

   Abstract:  The biomass of Antarctic toothfish (D. mawsoni) in CCAMLR subarea 48.4 is estimated ... as a separate stock. Based on the biological characteristics of the catches in Subarea 48.4, and the ... 1187 tonnes. Applying the CCAMLR agreed precautionary assumption of average biomass across the time ... series and harvest rate of γ = 0.038, implies a 2019/20 yield of 45 tonnes using the 5-year average ...

   Meeting Document : WG-FSA-2019/27 : Auteur(s): T. Earl and A. Riley

6. An integrated stock assessment of Patagonian toothfish (Dissostichus eleginoides) in CCAMLR Subarea 48.4

   Abstract:  This paper describes an update to the CASAL assessment of Patagonian toothfish (D ... . eleginoides) in Subarea 48.4. The assessment data time series are updated with the observations for the 2014 ... /15 season and several minor changes to the assessment are made: revision of tagging and recapture ... retardation period. Stock projections indicate that the stock is in healthy condition and that an annual yield ...

   Meeting Document : WG-FSA-15/28 : Auteur(s): M. Soeffker, V. Laptikhovsky, T. Earl and C. Darby (United Kingdom)

7. Seasonal and interannual variation in foraging range and habitat of macaroni penguins Eudyptes chrysolophus at South Georgia

   Abstract:  In marine ecosystems, characterisation of the foraging areas and habitats of predators ... is a key factor in interpreting their ecological role. We studied the foraging areas of the macaroni ... differences in some parameters varied between years. The bearings of chick-rearing foraging trips were non ... bearings of foraging trips was high. Travel speeds were slower during foraging trips in the chick-rearing ...

   Meeting Document : WG-EMM-02/21 Text : Auteur(s): K.E. Barlow and J.P. Croxall (United Kingdom)

8. Trade data analysis – A report of trends and supply chains in CDS data

   Abstract:  Analysis of the trends and supply chains in the CDS data for 2016 and 2017 has ...  identified increased use of the CDS with increases in the number of DCDs (41%), DEDs (35%) and DREDs (193 ... States of America (USA) in both years followed by Viet Nam. Analysis of supply chains within the CDS ... %) between these years. Across both years Chile had the greatest number of DCDs landings, exports and the ...

   Meeting Document : CCAMLR-XXXVII/BG/03 : Auteur(s): CCAMLR Secretariat

9. Updated description of Patagonian toothfish (Dissostichus eleginoides) tagging and ageing programs in Division 58.5.2, 1997–2015

   Abstract:  In 2014, CCAMLR endorsed a TAC of 4410 t of Patagonian toothfish in Division 58.5.2 ... . This report describes the recent fishing and data collection activities in the fishery. The fleet has ... enhance the tagging program that was established in 1998, the fleet has increased tagging rate in this ... , considerably adding to information on the structure of the population. The ageing program at AAD has produced ...

   Meeting Document : WG-FSA-15/55 : Auteur(s): D.C. Welsford, B. Farmer, T.D. Lamb, C. Péron, E. Woodcock and P.E. Ziegler (Australia)

10. Environmental response of upper trophic level predators reveals a system change in an Antarctic marine ecosystem

    increase in the frequency of years of low reproductive output. Changes in the population structure of krill ... . We suggest that the effects of underlying changes in the system on krill population structure has ... close to the limit of krill availability. Understanding how krill demography is affected by changes in ... performance and survival is one of the keys to predicting future change in Antarctic marine ecosystems. Author ...

    Meeting Document : WG-EMM-01/21 : Auteur(s): K. Reid and J.P. Croxall (United Kingdom)

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