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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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Erratum and Addendum - Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects – CCAMLR Science, 11: 59–80 (2004)
models, the Tweedie distribution, random vessel effects and random stratum-by-year effects – CCAMLR ... Erratum For the GLMM the ‘effective degrees of ... freedom’, r, was incorrectly specified as 2 2 1 ˆ ˆ iiu r q u σ = - å . The correct formula is 22 1 ... ˆ ˆ iiu r u σ = å (Schall, 1991). The results in Candy (2004) were not affected by this ... notational error since the S-plus® (Insightful Company, USA) function ‘reglm’ (www.statsci. org/s/reglm.html ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 221–222 : Autor(es): Candy, S.G
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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)
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Preliminary results of investigations into the stock structure of Patagonian toothfish (Dissostichus eleginoides) around Macquarie Island
Abstract: Studies on DNA microsatellites and a tagging programme both provide information on the ... from the two sites are not homogeneous at the 5% probability level. While the other three loci did not ... heterogeneity at the 5% probability level. Results from tagging experiments support the inference from the ... genetic analyses that interchange of fish between the two sites is very low. Of 469 recaptures at both ...
Meeting Document : WG-FSA-98/39 : Autor(es): A. Reilly, B. Ward and R. Williams (Australia)
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A hierarchical classification of benthic biodiversity and assessment of protected areas in the Southern Ocean
protected areas (MPAs) in the Southern Ocean to help provide for the long-term conservation of marine ... biodiversity in the region. Critical to this undertaking is understanding the distribution of benthic ... assemblages. Our aim is to identify the areas where benthic marine assemblages are likely to differ in the ... classified according to the geomorphic features found within the bathomes in each ecoregion. We identified ...
Meeting Document : WS-MPA-11/23 : Autor(es): L.L. Douglass, J. Turner, H.S. Grantham, S. Kaiser, R. Nicoll, A. Post, A. Brandt and D. Beaver (WWF–ASOC)