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Population assessment of Patagonian toothfish in Subarea 48.4 – 2011 update
Abstract: In this paper we update the assessment of D. eleginoides in the northern half of ... Subarea 48.4 presented in 2010. The CASAL model is improved through the incorporation catch at age data ... , as an alternative to the catch at length data that were the only such data available in 2010. The ... catch at age model generates a yield of 52 tonnes based on CCAMLR decision rules. In 2006 the northern ...
Meeting Document : WG-FSA-11/38 : Автор(ы): J. Roberts, R. Mitchell and R. Wakeford (United Kingdom)
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Swarm characteristics of Antarctic krill Euphausia superba relative to the proximity of land during summer in the Scotia Sea
swarming characteristics of Antarctic krill across the Scotia Sea in January and February 2003. Krill ... -sectional areas of swarms were significantly larger inshore, with a mean value of 120 m 2 in the 0 to 50 km ... . The highest median number of swarms per km and krill acoustic biomass per km was found in the 50 to ... 100 km zone. However, a significantly greater number of large, biomass-rich swarms occurred in the 0 ...
Meeting Document : WG-EMM-10/P09 : Автор(ы): T. Klevjer, G.A. Tarling and S. Fielding
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Results of a CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2013
first survey was completed in February (Hanchet al. 2012a). In this paper we provide the results of the ... second survey in the time series. The objectives of this second survey were: To carry out a longline ... survey to monitor subadult toothfish in the southern Ross Sea (strata A–C) using standardised gear in a ... standardised manner; and To sample additional experimental stations in adjacent areas to identify areas of high ...
Meeting Document : WG-SAM-13/32 : Автор(ы): S.J. Parker, S.M. Hanchet, S. Mormede, A. Dunn (New Zealand) and R. Sarralde (Spain)
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Plan of research program of the Russian Federation in Subarea 48.5
Abstract: Research program in the Weddell Sea in season 2015/2016 and the following seasons ... presented by the Russian Federation was prepared in accordance with recommendations of the Scientific ... Federation and adopted by the SC in 2012 (WG-FSA-12/12). Past WG-SAM-2015 (Warsaw, Poland) made no ... -35” obtained by the vessel in 2014. But, the Convention and Conservation Measures in force (Schedule ...
Meeting Document : WG-FSA-15/29 : Автор(ы): Delegation of the Russian Federation
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Change in environmental conditions of the Southern Ocean observed by satellites and data-assimilating models between 1981 and 2019
Abstract: We provide a summary of environmental change in the Southern Ocean over the period of ... movement north of the Subantarctic Front; (3) increasing chl-a and NPP in the Subantarctic Front and around ... the southern limit of the ACC except in the Ross Sea region; (4) decreasing chl-a and NPP in the Ross ... Sea sector and on the Antarctic continental shelf; (5) gradual loss of sea-ice in the Amundsen Sea and ...
Meeting Document : WG-EMM-2019/39 : Автор(ы): M. Pinkerton
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Killer whale Orcinus orca and sperm whale Physeter macrocephalus interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
Living Resources) observers between 2000 and 2002 at South Georgia (Subarea 48.3) in the Southeast ... deployed in depths of 300 to 2000m, concentrated along the 1000m contour. Sperm whales were the most ... abundant marine mammals observed in the vicinity of vessels when lines were being hauled, occurring during ... were not often sighted. Interactions with killer whales were most often observed in the day, mostly in ...
Meeting Document : WG-FSA-03/27 : Автор(ы): M.G. Purves (United Kingdom), D.J. Agnew (United Kingdom), E. Balguerías (Spain), C.A. Moreno (Chile) and B. Watkins (South Africa)
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Species variability and population structure of Euphausiacea in Admiralty Bay (King George Island; South Shetland Islands) during Antarctic summer
Abstract: The main component of zooplankton in Antarctic pelagic waters, apart from copepods or ... salps, are specimens representing euphausiids. In fjordic areas like Admiralty Bay, data concerning ... expedition to the H. Arctowski station in the Antarctic summer 2008-2009. Biological materials were collected ... in the central part of Admiralty Bay, in Ezcurra Inlet and in the smaller coves of the bay using the ...
Meeting Document : WG-EMM-14/60 : Автор(ы): A. Panasiuk-Chodnicka, J. Wawrzynek and M. Iwona Żmijewska (Poland)
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Updated status of Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in inshore sites of the South Shetland Islands: results of a long-term monitoring program (1983–2016) at Potter Cove
, to achieve a 33-year record, 1983-2016, to monitor changes in the prevalence of three species of ... Abstract: Trammel net surveys were continued in Potter Cove, South Shetland Islands, Antarctica ... consistent with those achieved from the most recent offshore bottom trawl research cruises in 2007 and 2012 ... around the South Shetland Islands: 1) a continuous increase in the abundance of N. rossii; 2) further ...
Meeting Document : WG-FSA-16/02 : Автор(ы): E. Barrera-Oro, E. Marschoff and D. Ainley
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Report on a random stratified trawl survey to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari conducted in the Heard Island region (Division 58.5.2), May–June 2007
Abstract: Since the commencement of commercial fishing in Australian waters on the Heard Island ... plateau in 1997 an annual random stratified trawl survey (RSTS) has been conducted to assess the stocks of ... on the Heard Island Plateau. The survey had the same design as the 2006 RSTS survey in the number of ... stations chosen for sampling in each stratum. This paper describes the conduct of the survey on the FV ...
Meeting Document : WG-FSA-07/46 : Автор(ы): G.B. Nowara and T. Lamb (Australia)
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DISTRIBUTION OF KRILL AT THRESHOLD DENSITIES SUITABLE FOR FISHING IN THE ATLANTIC SECTOR: ANALYSIS OF THE 2000 SYNOPTIC SURVEY DATA
shelf SSMUs in terms of the frequency of 1nm integration units with krill densities above and below a ... range of threshold values. 2. In general pelagic SSMUs had markedly lower frequencies of fishable ... . This was also true with other threshold values in the range 25 to 200 gm2 although the difference was ... smaller for higher thresholds. 4. The contrasting probability of encountering fishable concentrations in ...
Meeting Document : WG-EMM-08/16 : Автор(ы): S. Hill and D. Agnew (United Kingdom)
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