Résultats de la recherche
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Mean circulation and hydrography in the Ross Sea sector, Southern Ocean: representation in numerical models
hydrography. Two were climate models of low (1°) to intermediate resolution (1/3°), and one was an operational ... and monthly variability aspects of off-shelf circulation are consistently represented, and could imply ... –east flow is relatively consistent with that reconstructed from longline fishing records. These flows ... Front and on-shelf deep water formation, and these models transport some 4 Sv of this bottom water ...
Meeting Document : WG-EMM-10/P13 : Auteur(s): G.J. Rickard, M.J. Roberts, M.J.M. Williams, A. Dunn and M.H. Smith (2010)
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PHYSICAL CONTROLS ON CORAL COMMUNITIES ON THE GEORGE V LAND SLOPE: SOME WORKING HYPOTHESES
the benthos. Maps of water properties measured during the Collaborative East Antarctic Marine Census ... their likely distribution. The CEAMARC survey of 2007/2008 found these communities at sites on the upper ... slope in depths of 570 – 950 m. Based on these results we propose some working hypotheses to explain ... their distribution. Icebergs scour to 500 m in this region and the lack of such disturbance is probably ...
Meeting Document : WS-VME-09/04 : Auteur(s): De Santis, L., Riddle, M.J., Beaman, R.J., Post, A.L., O’Brien, P.E.
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A updated population status model for the Patagonian toothfish, Dissostichus eleginoides, at Kerguelen Islands (Division 58.5.1) using CASAL
Abstract: A stock assessment of the Patagonian toothfish (Dissostichus eleginoides) at Kerguelen ... , standardized CPUE of commercial fisheries, tag releases and recoveries by length bin, commercial catch-at ... of fishing vessels (trawlers, longliners). The fishing zone for the longliners is divided into four ... zones (North, East, South, Skiff Bank) and into two depth zones: shallow < 1,500m; deep > 1,500m ...
Meeting Document : WG-FSA-12/09 : Auteur(s): A. Rélot-Stirnemann (France)
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Proposal for a new Antarctic Specially Protected Area, Terra Nova Bay, Ross Sea
) lines of latitude and longitude in the north, east and south offer a clear and practical definition of ... Abstract: The Area proposed for special protection is a small and narrow strip of waters ... extending approximately 9.5 km in length immediately to the south of Terra Nova Bay Station and up to a ... maximum of 7 km from the shore. The total area of the proposed site is just under 30 km2. The boundaries ...
Meeting Document : WG-EMM-02/56 : Auteur(s): Proposed by Italy
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KRILL FISHERY REPORT: 2011 UPDATE
of which has been taken from Subarea 48.2 between February and May. Approximately 55% of the catch ... has been taken by two vessels using the continuous fishing system. The forecast total catch of krill ... and reported a total catch of 211974 t; three vessels used the continuous fishing system. For the ... first time, the catches of krill approached the apportioned limit for Subarea 48.1 (25% of the trigger ...
Meeting Document : WG-EMM-11/05 : Auteur(s): Secretariat
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Note sur l'étude des effets environnementaux, spatiaux, temporels et opérationnels sur la mortalité accidentelle des oiseaux dans la pêcherie à la palangre dans les secteurs de Crozet et Kerguelen en 2003–2006
incidental mortality of seabirds was reduced by approximately half each year. A multivariate analysis has ... revealed that the incidental catch of white-chinned petrels and grey petrels is caused by a complex set of ... of the mortality of white-chinned petrels and grey petrels can be explained by the effects of season ... higher mortality in the northern and central areas in the east, and northern and southern areas in the ...
Meeting Document : SC-CAMLR-XXVI/BG/21 : Auteur(s): Délégation française
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Spatial variability and power to detect regional-scale trends
-scale surveys of Adelie penguin breeding population size in east Antarctica to assess the degree of ... Abstract: An important issue in regional-scale trend detection is the degree of concordance in ... between sites than within sites over time, inter-site variance can overwhelm the effects of other sources ... of variation in a system, resulting in low power in trend detection across that scale, despite ...
Meeting Document : WG-EMM-03/47 : Auteur(s): C. Southwell and L. Emmerson (Australia)
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The Ross Sea, Antarctica, where all ecosystem processes still remain for study
Abstract: The Ross Sea is a well-defined embayment of Antarctica about the size of southern ... Europe, bounded by Victoria Land to the west; King Edward VII Peninsula, Marie Byrd Land, to the east ... composed of two related biotic systems: the Ross Sea Shelf Ecosystem (RSShE) and the Ross Sea Slope ... escaped direct anthropogenic alteration; the RSSlE, similar to all of Earth’s other marine ecosystems, has ...
Meeting Document : WG-EMM-02/60 : Auteur(s): D. Ainley (USA)
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Near-shore acoustic surveys for Antarctic krill at South Georgia, January 2004
) aground on the shelf edge to the north east of South Georgia that may have been blocking the influx of ... Islands and off the Barff Peninsula, South Georgia, from a 59 foot yacht in January 2004. The purpose of ... were collected in seastate 6 with winds up to 30 knots and swells of approximately 2.5 m at survey ... speeds of up to 7 knots. Echo intensity data were scaled to krill density using a target strength ...
Meeting Document : WG-EMM-04/35 : Auteur(s): A.S. Brierley, P.N. Trathan, J. Poncet and A. Morton (United Kingdom)
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Report on fish by-catch on exploratory fishing in Divisions 58.4.1 and 58.4.2
or groups of species. In 2018, by-catch represented 12% of the total catch (43 tonnes over 307 tonnes ... of Dissostichus spp.) in Divisions 58.4.1 and 58.4.2. 98% of the biomass was represented by 2 ... everywhere. The ratio by-catch to target catch was higher in the eastern part of Division 58.4.1. The ratio ... in average with relatively little spatial variations except in the east were it could reach 180kg ...
Meeting Document : WG-FSA-18/28 : Auteur(s): C. Péron, P. Yates, D. Maschette, C. Chazeau, P. Ziegler, D. Welsford, N. Gasco and G. Duhamel