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Reasons of differences between distribution and density of mackerel icefish (Champsocephalus gunnari) aggregations in the South Georgia area during summer and autumn periods in different years from the bottom trawl survey data
the largest aggregations of food organisms are concentrated at the beginning of the spring period ... . Icefish concentrations were detected at the periphery of a cyclonic meander or in the centre of the ... vertical migrations by foraging fish. All physiological processes of icefish begin to recede at such a ... anticyclonic circulation formed by the Weddell waters. Confinement of the fish to the boundary of water masses ...
Meeting Document : WG-FSA-05/77 : Автор(ы): Zh.A. Frolkina (Russia)
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Development of an underwater setting method for surface longliners, to minimise the accidental capture of seabirds
reaches its determined depth. At this point in time the carry over action of the capsule and retrieval ... Abstract: In response to the Department of Conservation's concerns for the accidental ... capture of seabirds by Surface Long Liners and subsequent contract 9513004, several concepts of bait ... concept being a towed paravane with an endless cable employed to transport and release the bait at the ...
Meeting Document : WG-FSA-97/54 : Автор(ы): Bentley, N., Smith, M.
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Preliminary results of investigations into the stock structure of Patagonian toothfish (Dissostichus eleginoides) around Macquarie Island
genetic analyses that interchange of fish between the two sites is very low. Of 469 recaptures at both ... degree of interchange of Dissostichus eleginoides (Patagonian Toothfish) between two sites 40 nautical ... levels appropriate for population structure analysis, and two of these gave results that suggest samples ... from the two sites are not homogeneous at the 5% probability level. While the other three loci did not ...
Meeting Document : WG-FSA-98/39 : Автор(ы): A. Reilly, B. Ward and R. Williams (Australia)
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Brief report on results of experimental harvest regime for the exploratory fishery for crab in the area of the South Orkney Islands (CCAMLR Subarea 48.2) during the 2009/10 season
in the area of the Southern Orkney Islands. Probably, the absence of crabs at the in March was ... connected to their seasonal migration to other depths. At the end of March, biological productivity of this ... Abstract: From March, 23 till April, 1, 2010 during the cruise of the Russian crabber vessel ... " Tamango " in CCAMLR zone, the searching operations were carried out in the area of the ...
Meeting Document : WG-FSA-10/44 : Автор(ы): Yu.V. Korzun and S.E. Anosov (Ukraine)
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The 2014 annual random stratified trawl survey in the waters of Heard Island (Division 58.5.2) to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari
Abstract: The annual random stratified trawl survey (RSTS) at HIMI was conducted during June of ... 2014, with the completion of 158 stations. An additional five stations were completed at Shell Bank ... catches in 2014 were slightly higher than the average RSTS take. Catches at Shell Bank consisted mostly of ... , which had not been sampled since 2005. The catches of C. gunnari were less than half of those in 2013 ...
Meeting Document : WG-FSA-14/41 : Автор(ы): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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An examination of latitudinal variation in the growth rates of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
conducted. Length-at-age of Dissostichus mawsoni was compared across five zones in a 15.5° latitudinal range ... in the length-at-age data. There is no statistically significant difference in mean growth rates of D ... Abstract: Following a finding that a small sample of aged Dissostichus mawsoni from McMurdo Sound ... (62.5°–78.0° S). Between-zone comparisons were confounded by marked differences in the age structure of ...
Meeting Document : WG-FSA-03/30 : Автор(ы): P.L. Horn (New Zealand)
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Modelling Movement of Antarctic Krill (MMAK): the importance of retention, dispersal and behaviour for krill distribution – a project update
investigate the impact of physical and behavioural processes on the distribution of krill in this area, at ... Antarctic Wildlife Research Fund, to improve current understanding of the regional and local-scale processes ... that influence the distribution of Antarctic krill in CCAMLR Area 48, focussing in particular on the ... South Orkney Islands region. MMAK uses modelling studies at varying spatial and temporal resolutions to ...
Meeting Document : WG-EMM-18/06 : Автор(ы): S.E. Thorpe, E.F. Young, E.J. Murphy, O.R. Godø and A.H.H. Renner
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An investigation of avoidance by Antarctic krill of RRS James Clark Ross using the Autosub-2 autonomous underwater vehicle
of scientific echosounder as the research vessel (Simrad EK500 operating at 38 kHz and 120 kHz) and ... between the amount of krill detected by the ship or the AUV, either at the transect level or at finer ... of RRS James Clark Ross in the northern Weddell Sea and in the Bransfield Strait to assess avoidance ... of the research vessel by Antarctic krill Euphausia superba. The AUV was equipped with the same type ...
Meeting Document : WG-EMM-01/14 : Автор(ы): A.S. Brierley, P.G. Fernandes, M.A. Brandon, E. Armstrong, D.G. Bone and the Autosub Team (United Kingdom)
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Application of aerial photography for ecological survey and habitat management of Adélie penguins
survey at large scale breeding sites of penguins. To compensate for these shortcomings of the classical ... method, we tested the effectiveness of aerial photography for penguin monitoring at Cape Hallett. Images ... Abstract: There are some limits to the accurate counting of the total number of nests by ground ... some of the colonies because it was difficult to access those areas located below the mountain slope ...
Meeting Document : WG-EMM-18/38 : Автор(ы): J.-H. Kim, H.-C. Kim, J.-I. Kim, C.-U. Hyun, J.-W. Jung, Y.-S. Kim, H. Chung and H.C. Shin
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Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, Dr E. Holmberg survey, February 1995
empty stomachs (also at Shag Rocks), close to the values reported for years of krill scarcity. While no ... Abstract: About 1300 stomach contents of the icefish Champsocepha1us gunnari caught in the ... Subarea 48.3 in February 1995, were analyzed using the frequency of occurrence (%) method. Krill ... (Euphausia superba) (58%) and the amphipod hyperiid Themisto gaudichaudii (55%) occurred similarly at South ...
Meeting Document : WG-FSA-95/36 : Автор(ы): Marschoff, E., Barrera-Oro, E., Casaux, R.
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