Résultats de la recherche
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Mercury concentrations in Patagonian toothfish, Dissostichus eleginoides Smitt 1898, among three distinct ocean basins
across the range examined. However, fish were significantly smaller within the Atlantic basin (mean=84.52 ... cm; 5.57 kg; n=142) than the Pacific (99.07 cm; 9.12 kg; n=15) and Indian (102.72 cm; 14.0 kg; n=29 ... size across the range examined and was less for Atlantic basin fish) mean=0.23 ppm) than either Pacific ... (0.73 ppm) or Indian basin (0.80 ppm) fish, which did not differ. The Pacific and Indian basin fish had ...
Meeting Document : WG-FSA-06/24 : Auteur(s): K. Dawson Guynn and M.S. Peterson (USA)
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Defining predator foraging ranges, illustrated using Adélie penguin foraging tracks from Mawson coast
Abstract: One step toward defining small-scale management units is to determine the areas most ... likely to be foraged by predators from one year to the next, i.e. what is a predator’s feeding range ... taking into account interannual variation in foraging locations? This paper considers the issues to be ... addressed in answering that question. The proposed method for defining foraging ranges is based on an ...
Meeting Document : WG-EMM-02/41 : Auteur(s): I.R. Ball, A.J. Constable, J. Clarke and L. Emmerson (Australia)
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Beach litter survey Signy Island, South Orkney Islands, 1993/94
Abstract: A beach litter survey was carried out on Signy Island, South Orkney Islands during the ... 1993/94 austral summer. Similar surveys were carried out during the 1990/91, 1991/92 and 1992/93 ... from any scientific research stations in the South Orkney Islands. The beach litter surveys carried out ... in 1990/91, 1991/92 and 1992/93 showed a drop in both the weight of debris and the total number of ...
Meeting Document : CCAMLR-XIII/BG/11 : Auteur(s): Delegation of United Kingdom
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Proposal for a longline survey on toothfish in Statistical Subarea 48.6 in 2017/18
Abstract: Norway proposes a plan to investigate the toothfish populations in the Statistical ... and acoustic techniques. The proposed research is pertinent to issues raised by the Scientific ... characterise the local toothfish populations in the area to better understand stock structure, movement ... patterns and improve estimation of population characteristics and thereby contribute to the development of ...
Meeting Document : WG-FSA-17/61 Rev. 1 : Auteur(s): Delegation of Norway
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Contrôle des filets sur les navires norvégiens de pêche au krill, essais récents, et proposition d'amendement de la MC 25-03 visant à permettre la communication câblée entre les capteurs du chalut et le navire
Abstract: Net monitoring during krill trawling is necessary to the industry and beneficial to ... trawl sensors. Norwegian krill vessels conducting continuous trawling use a cabled connection where the ... implemented on the FV Saga Sea because extensive trials carried out in 2017/18 with other alternatives were ... this particular rigging is compatible with the main objectives of CM 25-03, i.e. minimizing the ...
Meeting Document : SC-CAMLR-38/18 : Auteur(s): O.A. Bergstad
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Identification and speciation of Antarctic skates
(COI) were sequenced in 9 species of Bathyraja skates from the Southern Oceans and New Zealand. Based ... on significant sequence divergence, the species that has been referred to as Bathyraja eatonii from ... the Antarctic shelf and slope is a species distinct from B. eatonii from the Kerguelen Plateau (the ... Bathyraja n. sp. cf eatonii. There was no sequence divergence among samples of B. n. sp. “dwarf” from the ...
Meeting Document : WG-FSA-07/27 : Auteur(s): P.J. Smith, C.D. Roberts, A.L. Stewart, M. McVeagh and C.D. Struthers (New Zealand)
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Measurement of ocean temperatures using instruments carried by Antarctic fur seals
Abstract: The study aimed to test the utility of instruments deployed on marine mammals for ... measuring physical oceanographic variation and, using this method, to examine temperature variation in the ... recorders (TDRs) fitted to lactating Antarctic fur seals foraging from the coast of South Georgia ... temperature measured by TDRs in the top 5 m and sea surface temperature (SST) measured by satellite remote ...
Meeting Document : WG-EMM-01/56 : Auteur(s): I.L. Boyd, E.J. Hawker, M.A. Brandon and I.J. Staniland (United Kingdom)
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Satellite tracking of black-browed and light-mantled sooty albatrosses from Heard Island and potential interactions with fisheries
Abstract: The purpose of this document is to inform CCAMLR of the results of a satellite tracking ... ). This was the first time the movements of either species from the island had been studied. Ten black ... foraged on the shelf break within 150 km of Heard Island, and focused 75% of their foraging time in waters ... over submarine canyons on Gunneri Ridge, north east of the island. There was considerable spatial ...
Meeting Document : WG-FSA-05/14 : Auteur(s): K. Lawton, R. Kirkwood and G. Robertson (Australia)
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Krill fishery report: 2012 update
have fished for krill in Area 48; one vessel is using the continuous fishing system. The total catch ... were fishing, at the time of preparing this report, and 935 t of krill has been reported so far for ... June. The forecast total catch of krill for this season ranges approximately from 108000 to 151000 t ... . In 2010/11, 13 vessels fished for krill in Area 48 and the total catch of krill was 180986 t; two ...
Meeting Document : WG-EMM-12/05 : Auteur(s): Secretariat
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Inter-annual variability in krill density at South Georgia: 1997–2012
, maintaining very large numbers of predators, and fluctuations in their abundance can affect the overall ... structure and functioning of the ecosystems. The inter-annual variability in the abundance and biomass of ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ... Box (WCB) survey area to the north of South Georgia, Southern Ocean. Krill targets were identified in ...
Meeting Document : WG-EMM-13/14 : Auteur(s): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)