Résultats de la recherche

1. Sexual dimorphism and sexual segregation in foraging strategies of northern giant petrels Macronectes halli during incubation

   dimorphism, in terms of the intersexual food competition hypothesis, on foraging and fasting strategies of ... , duration of foraging trips) was greater for females than for males. In contrast, foraging efficiency ... body reserves. In males the total mass gain was best explained by mass at departure and body size. We ... , promoting sexual size dimorphism. Our results indicate that sex-specific differences in fasting endurance ...

   Meeting Document : WG-FSA-99/38 : Auteur(s): J. González-Solís, J.P. Croxall and A.G. Wood (United Kingdom)

2. Results of the Dissostichus spp. new fisheries projects in the Antarctic region (CCAMLR Statistical Subareas 48.1, 48.2 and 88.3)

   part of the New Fisheries Projects developed by Chile, mainly in order to establish presence of ... Dissostichus spp. in the CCAMLR Statistical Subareas 48.1, 48.2 and 88.3. Industrial longlines Spanish system ... toothfish (D. eleginoides) was captured from King George Island, in the Antarctic-Pacific Ocean (latitude 61 ... °24'S) to the Scottish Sea in the Antarctic-Atlantic (Latitude 58°01'S). The Dissostichus ...

   Meeting Document : SC-CAMLR-XVII/BG/07 Rev. 1 : Auteur(s): Delegation of Chile

3. THE DIET OF THE ANTARCTIC TOOTHFISH IN THE ROSS SEA

   toothfish, Dissostichus mawsoni, in the Ross Sea. The diet for a sample from McMurdo Sound in the ... macrourid (grenadier or rattail) Macrourus whitsoni dominated the diet at 54% and 37%, respectively. In the ... genera. It can be concluded that D. mawsoni is a generalized piscivorous predator that feeds primarily in ... the water column and occasionally on the substrate. There is variability in the diet within Subarea ...

   Meeting Document : WG-EMM-09/16 : Auteur(s): J.T. Eastman and A.L. DeVries (USA)

4. Population dynamics of wandering albatross Diomedea exulans and Amsterdam albatross D. amsterdamensis in the Indian Ocean and their relationships with longline fisheries: conservation implications

   Abstract:  Studies carried out over the past three decades at Crozet and Kerguelen Islands in the ... populations are in contact with long-line fisheries, mainly the pelagic Japanese southern blue-Jin tuna ... recent years has probably resulted in the slow recovery of these albatross populations as a result of ... albatross populations, most which are still declining in the Southern Ocean. Possible conservation measures ...

   Meeting Document : WG-FSA-96/09 : Auteur(s): Jouventin, P., Brothers, N., Weimerskirch, H.

5. Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?

   pelagic life cycle and plays a major trophic role in the coastal Antarctic marine ecosystem. A previous ... pools, and population structure. In the present study, we used 16 EST-linked microsatellites to ... variability in the southwestern AP, while significant genetic differences were detected on a small geographic ... anti-clockwise Coastal Current, than in the opposite direction. Reduced level of gene flow along the ...

   Meeting Document : WG-FSA-13/67 : Auteur(s): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)

6. Preliminary examination of otolith microchemistry to determine stock structure in Antarctic toothfish (Dissostichus mawsoni) between SSRU 88.1C and 88.2H

   evaluated using otolith microchemistry techniques. Our aims were to (i) determine whether fish from in ... concentrations in the otolith edge and then to (ii) assess the potential of natal signatures to distinguish ...   stocks among these regions. For the elements (Mg, Al and Sr) spatial variation in otolith chemistry was ... shown. This resulted in the correct classification of 63% of fish overall to their original capture ...

   Meeting Document : WG-SAM-14/33 : Auteur(s): R. Tana, B.J. Hicks, C. Pilditch and S.M. Hanchet (New Zealand)

7. Apparent decrease of Weddell seal numbers in the western Ross Sea

   molting haul outs in the western Ross Sea: Edisto Inlet- Moubray Bay, northern Victoria Land, and ... Edisto-Moubray as well. The timing of decline, or perhaps spreading (low numbers of seals in more places ... ), is unknown but appears unrelated to changes in sea ice conditions, which was our initial hypothesis ... . We analyzed both historic and satellite-derived ice data but found only an expansion of pack ice in ...

   Meeting Document : WG-EMM-14/44 : Auteur(s): D.G. Ainley, M.A. Larue (USA), I. Stirling (Canada), S. Stammerjohn and D.B. Siniff (USA)

8. By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during 2012/13–2016/17

   report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during ... by-catch occurred in most longline research operations, the number of by-catch individuals was less ... than 100 individuals in most of the operations. In most of longline operation, by-catch weight was less ... highest at research blocks 48.6_1. As temporal change of by-catch, only GRV shows obvious decrease in ...

   Meeting Document : WG-SAM-17/44 : Auteur(s): T. Okuda, S. Somhlaba and T. Ichii

9. By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Divisions 58.4.3a and 58.4.4b by Japan and France during 2012/13–2016/17

   report for the research fishery of Dissostichus spp. in Division 58.4.3a and 58.4.4b by Japan and France ... . Although the by-catch occurred in most longline research operations, the number of by-catch individuals was ... less than 50 individuals in most of the operations. In most of longline operation, by-catch weight was ... temporal change of by-catch, common three by-catch species represents obvious decrease in number of by ...

   Meeting Document : WG-SAM-17/45 : Auteur(s): T. Okuda, A. Rigaud, R. Sinegre and T. Ichii

10. Adélie penguins’ response to unmanned aerial vehicle at Cape Hallett in the Ross Sea region, Antarctica

    Abstract:  Aerial photography is widely accepted as a useful method for monitoring penguins in ... Antarctica, but there are concerns about the disturbance it causes to penguins in the process. Since 2016 ... Adélie penguins in this area, because Cape Hallett was designated as a new site for the Ecosystem ... ) in 2018. In order to obtain suitable images for counting the number of nests and mitigate ...

    Meeting Document : WG-EMM-2019/36 Rev. 1 : Auteur(s): J.-H. Kim, Y.-S. Kim, J.-W. Jung, W.Y. Lee, H.-C. Kim, J.H. Kim, H. Chung and H.C. Shin

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