Resultados de la búsqueda
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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 : Autor(es): J.T. Eastman and A.L. DeVries (USA)
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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 : Autor(es): Jouventin, P., Brothers, N., Weimerskirch, H.
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By-catch of fish in the krill fishery
operations from a research vessel. The results indicate that the bycatch of fish in the commercial krill ... fishery may be significant in some areas of the South Georgia shelf. The problem is thought to be least in ... ) Title: By-catch of fish in the krill fishery Approval: Approved ...
Meeting Document : WG-KRILL-91/25 : Autor(es): I. Everson (United Kingdom), A. Neyelov and Y. Permitin (USSR)
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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 : Autor(es): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)
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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 : Autor(es): R. Tana, B.J. Hicks, C. Pilditch and S.M. Hanchet (New Zealand)
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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 : Autor(es): D.G. Ainley, M.A. Larue (USA), I. Stirling (Canada), S. Stammerjohn and D.B. Siniff (USA)
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Net diagrams for Ukrainian vessel notified for krill fishery in 2015/16 - Notification ID 86703, 86755 and 86757
Abstract: In accordance with CM 21‐03, Annex 21‐03 A, attached are the net diagram and marine ... mammal exclusion device diagram to be used in conjunction with the online notifications for the krill ... fishery in the 2015/16 fishing season submitted for the Ukrainian vessel: More Sodruzhestva. Author(s ... ): Delegation of Ukraine Title: Net diagrams for Ukrainian vessel notified for krill fishery in 2015/16 ...
Meeting Document : WG-EMM-15/49 : Autor(es): Delegation of Ukraine
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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 : Autor(es): T. Okuda, S. Somhlaba and T. Ichii
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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 : Autor(es): T. Okuda, A. Rigaud, R. Sinegre and T. Ichii
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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 : Autor(es): J.-H. Kim, Y.-S. Kim, J.-W. Jung, W.Y. Lee, H.-C. Kim, J.H. Kim, H. Chung and H.C. Shin