Resultados de la búsqueda
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CCAMLR Bioregionalisation Workshop (Brussels, Belgium 13 to 17 August 2007) Update of benthic bioregionalisation of the Southern Ocean
Abstract: At the CCAMLR Bioregionalisation Workshop, 13-17 August 2007, it was agreed that ... physical variables could be used to produce primary physical regionalisations of the Southern Ocean and ... the process and results of the primary benthic regionalisation completed at the Workshop and ... subsequent refinements to this regionalisation including the use of additional data which could not be ...
Meeting Document : SC-CAMLR-XXVI/BG/28 : Autor(es): Co-conveners, CCAMLR Bioregionalisation Workshop
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New data on spawning, hatching and growth of the Kerguelen Islands Champsocephalus gunnari shelf stock
Abstract: Combined studies on the inner shelf and outer shelf of the Kerguelen islands (1989/90 ... programme allows to identify each year, both from the ichthyoplanktonic surveys and bottom trawlings, an ... in the samples along the study. It would explain the previouly observed three years cycle. Spawners ... have been observed in mass only once during the studied period and are fishes of the 1988 cohort first ...
Meeting Document : WG-FSA-94/9 Rev. 1 : Autor(es): G. Duhamel (France)
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Distribution patterns and biomasses of Antarctic krill (Euphausia superba) and ice krill (E. crystallorophias) with note on distribution of Antarctic minke whales (Balaenoptera bonaerensis) in the Ross Sea in 2005
Abstract: Distribution patterns and biomasses of Antarctic and ice krill in the Ross Sea in ... and oceanography data. Two research vessels, KM and KS2, conducted the hydroacoustic surveys ... independently in the same area. Distribution patterns and length frequency information for two species were ... distributed on the continental shelf region (shallower than 1000m water depth). In contrast, Antarctic krill ...
Meeting Document : WG-EMM-08/35 : Autor(es): H. Murase, H. Yasuma, R. Matsukura, Y. Takao, K. Taki, T. Hayashi, T. Yabuki, T. Tamura, K. Konishi, K. Matsuoka, K. Miyashita, S. Nishiwaki and M. Naganobu (Japan)
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Calculation of indices of sea-ice concentration using digital images from the National Snow and Ice Data Centre
distributed by the National Snow and Ice Data Centre, Colorado, USA. Data consist of an image of the Antarctic ... , made up of 312x332 pixels, each having a dimension of 25x25km, for every day in the year. Primary data ... of the distance of sea ice from CEMP sites, the northerly position of the sea ice edge, and the ... percentage ice cover in subareas, are entered into the CCAMLR database. Indices of ice cover are calculated ...
Meeting Document : WG-EMM-95/11 : Autor(es): Agnew, D.J.
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Hydroacoustic survey of elephant island and the vicinity of King George Island, austral summer 1989
Abstract: The hydroacoustic survey found a high krill abundance in the Elephant Island area (a ... “superswarm" not unlike 1981) and a very low abundance in the King George Island area compared to last ... years survey. The total biomass in the vicinity of Elephant Island estimated from 200 kHz survey data ... was 940 k tons with only 34 k tons in the King George Island/Bransfield Strait. The survey results ...
Meeting Document : SC-CAMLR-VIII/BG/33 : Autor(es): Delegation of USA
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A preliminary CASAL population assessment of Patagonian toothfish in CCAMLR Subarea 48.4 based on data for the 2009–2014 fishing seasons
. eleginoides) in Subarea 48.4. The assessment data are updated with the observations for the 2013/14 season and ... sensitivity analyses conducted using the maturity ogive from the area 48.3 and revised growth assumptions. The ... revised assessment is compared with the previous assessment for this stock. Stock projections indicate ... that an annual yield of 40 tonnes is consistent with the application of the CCAMLR harvest control rule ...
Meeting Document : WG-FSA-14/29 Rev. 1 : Autor(es): V. Laptikhovsky, R. Scott, M. Söffker and C. Darby (United Kingdom)
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COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY
Abstract: The number of African penguins Spheniscus demersus breeding in South Africa collapsed ... years. This reduced the global population to 26 000 pairs, when including Namibian breeders, and led to ... classification of the species as Endangered. In South Africa, penguins breed in two regions, the Western Capeand ... main food is anchovy Engraulis encrasicolus and sardine Sardinops sagax, which are also the target of ...
Meeting Document : WG-EMM-11/P8 : Autor(es): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington
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The Australian exploratory toothfish fishery in CCAMLR Division 58.4.2 and Subdivision 58.4.3b in season 2003/04
Abstract: The Australian longliner Eldfisk was authorised to conduct an exploratory fishery for ... Dissostichus sp. in CCAMLR Divisions 58.4.3b (BANZARE Bank) and Division 58.4.2 in the 2003/04 season. The ... results of the fisheries in Division 58.4.2 and Division 58.4.3b are summarised. Between 12 December 2003 ... and 23 December 2003, the Australian vessel, Eldfisk undertook exploratory longline fishing in ...
Meeting Document : WG-FSA-04/66 : Autor(es): D. Erceg and E. van Wijk (Australia)
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Seabird mortality in the artisanal austral hake and Patagonian toothfish longline fisheries in southern Chile
Abstract: Industrial longline fisheries are considered worldwide as the main threat to albatross ... petrels than industrial fishing. Here we described the fishing technique and provide the first assessment ... of incidental mortality for the artisanal fleets for Austral hake and Patagonian toothfish in ... longlines that sink fast: 0.33 and 0.69-0.22 m?sec-1 in the hake and toothfish longlines, respectively ...
Meeting Document : WG-FSA-04/54 : Autor(es): C.A. Moreno, P. Rubilar, J. Arata, R. Hucke-Gaete (Chile) and G. Robertson (Australia)
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Detecting trends in the krill fishery
Abstract: The development of the krill fishery can be monitored and predicted using a number of ... different sources of information. Information on current catches and scientific information on the krill ... stocks is of limited value in plotting trends in the fishery at its current level. Predictions by Members ... of their future plans are also of limited use because they ultimately depend on the underlying ...
Meeting Document : WG-EMM-02/25 : Autor(es): S. Nicol and J. Foster (Australia)