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Stable isotope analysis of Southern Ocean fish tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni)
to determine C and N stable isotope composition. Values of?15N and?13C suggested that a minimum of ... Atlantic, and sperm whales from the Gulf of Mexico. There was high variance in?15N and?13C values for each ... of the species sampled, on the order of 3-4 ‰ for?15N (which equates to one trophic level) and 4 ... ‰ for?13C (suggesting multiple primary sources of organic matter). For each species where sufficient ...
Meeting Document : WG-EMM-07/19 : Автор(ы): M.H. Pinkerton, S. Bury, S.M. Hanchet and D. Thompson (New Zealand)
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Some notes on by-catch of fishes caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (December 2000 to January 2001)
by F/V Niitaka Maru (3910t) were made from 16 December 2000 to 26 January 2001 in the vicinity of the ... % of hauls sampled for by-catch and 51.2% of those contained fish. P. antarcticum and C. gunnari were ... which constitute 63.4% of hauls contained by-catch fish and a high degree of spatotemporal dissociation ... among juveniles of different species was recognized. The by-catch data of the present survey provided a ...
Meeting Document : WG-EMM-01/50 : Автор(ы): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)
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A hierarchical classification of benthic biodiversity and assessment of protected areas in the Southern Ocean
Abstract: An international effort is underway to establish a representative system of marine ... 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 ... classification of ecoregions, bathomes and environmental types. Ecoregions are defined according to available ...
Meeting Document : WS-MPA-11/23 : Автор(ы): L.L. Douglass, J. Turner, H.S. Grantham, S. Kaiser, R. Nicoll, A. Post, A. Brandt and D. Beaver (WWF–ASOC)
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Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru
Abstract: In order to calculate the target strength of Antarctic krill (Euphausia superba) using ... of krill were measured during the Antarctic surveys conducted by the Japanese RV Kaiyo Maru in 1999 ... /2000 and 2004/2005. Samples of krill were caught by a RMT(1+8). Mass-density of krill was measured by ... Sea in January and February 2005. Sound-speed was measured using the "time of flight" method ...
Meeting Document : WG-EMM-08/56 Rev. 1 : Автор(ы): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)
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A revised assessment of the impact of the krill fishery on penguins in the South Shetlands
Abstract: This paper is a revision of the assessment of the competition between the Japanese ... slope and shelf to the north of either Livingston or Elephant Islands. In contrast, main foraging areas ... of penguins are considered to be formed in areas to the north of King George, Nelson and Robert ... foraging areas is resulted from that large colonies of the dominant penguin (chinstrap penguins, Pygoscelis ...
Meeting Document : WG-Joint-94/17 : Автор(ы): T. Ichii, M. Naganobu and T. Ogishima (Japan)
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Research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: Update of stage 2 (2013/14 season) and preliminary results of stage 1 (2012/13 season) according to WG-SAM advice
Abstract: A revision of the research plan and preliminary results of the Spanish exploratory ... completed in each of the SSRU surveyed (58.4.1H and 58.4.1G). Three prospecting-phase clusters of sets did ... not reach the threshold to start the depletion. A new prospective estimation of the local biomass (B ... LOC) of the two localized areas where the depletion experiments were performed is done as well as an ...
Meeting Document : WG-FSA-13/15 : Автор(ы): R. Sarralde, L.J López Abellán and S. Barreiro (Spain)
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Plan of research program of the Ukraine in Subarea 48.2 in 2016 (second season)
accordance with the recommendations of CCAMLR-XXXIII. The certain number of the following bottom long line ... the Ukrainian flagged FV SIMEIZ. The data collected in first year of the research showed the ... possibility of demarcation of investigated area on two blocks- Northern and Southern by the Dissostichus spp ... . habitat. Proposed to change the design of the research survey to reach the purpose of 3-years ...
Meeting Document : WG-SAM-15/40 : Автор(ы): Delegation of Ukraine
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PRELIMINARY RESULTS OF THE EXPERIMENT ON DEFINITION OF ANTARCTIC KRILL MORTALITY RATE IN FISHERY
Abstract: Two successful experiments on definition of Antarctic krill mortality have been carried ... . Approximately 230 to 130 kg of krill are percolated and punched through per an hour of trawling if the average ... catch per an hour of trawling is about 8 tons and towing speed is 2.6-2.7 knots. The key parameters of ... trawling which influence the value of the Antarctic krill mortality rate are: the trawl configuration and ...
Meeting Document : WG-EMM-11/15 : Автор(ы): L. Pshenichnov and K. Vyshniakova (Ukraine)
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Interannual hydroclimate fluctuations of the Atlantic part of the Antarctic since 1970 to 2000
Abstract: Late in 1999 and early in 2000 there was observed a significant shifting of Falkland ... Current core towards the shelf and abnormally large number of icebergs on the South Georgia Island shelf ... . In this connection, retrospective hydrometeorological data on the areas of South-West Atlantic ... Antarctic were examined from 1970 to 2000 March. The analysis of atmospheric pressure average monthly fields ...
Meeting Document : WG-EMM-00/35 : Автор(ы): G. Chernega, I. Polischuk and P. Chernyshkov (Russia)
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INCOMPLETE SEARCH EFFORT AS A POTENTIAL SOURCE OF BIAS IN BROAD-SCALE ESTIMATES OF PENGUIN ABUNDANCE DERIVED FROM PUBLISHED COUNT DATA: A CASE STUDY FOR ADÉLIE PENGUINS IN EAST ANTARCTICA
m2 and within 500 m of the ocean) in the Australian Antarctic Territory (AAT) was mapped using a GIS ... , and the literature reviewed for evidence of the mapped habitat being searched for occupation by ... breeding Adélie penguins. The total area of potential breeding habitat was estimated to be close to 700 km2 ... . Definitive or reasonably strong evidence of search effort was found for 63% of all potential habitat sites ...
Meeting Document : WG-EMM-PSW-08/13 : Автор(ы): C. Southwell, D. Smith and A. Bender (Australia)
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