Résultats de la recherche
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
while at shallower layer (20-50 m) at night. In the offshore foraging areas krill showed no diurnal ... were totally different between the two foraging areas. The reasons why the fur seal chose offshore ... foraging areas over inshore foraging areas were discussed. Author(s): T. Ichii, H. Ishii (Japan), J.L ...
Meeting Document : WG-KRILL-92/27 : Auteur(s): T. Ichii, H. Ishii (Japan), J.L. Bengtson, P. Boveng, J.K. Jansen (USA) and M. Naganobu (Japan)
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Population structure of the Antarctic toothfish, Dissostichus mawsoni from the Areas 58 and 88 in the Antarctic Ocean based on mitochondrial and microsatellite DNA markers
localities from the two main Subareas 88 and 58, based on a combined analysis of mitochondrial DNA (mtDNA ... (one genetic stock). However, given weak but significant microsatellite differentiation found between ... efforts on the stock (unit) management for this valuable fishery resource. Author(s): H.-K. Choi, J.E ... . Jang, S.Y. Byeon, S. Chung, S.-G. Choi, H. W. Kim and H.J. Lee Title: Population structure of the ...
Meeting Document : WG-FSA-2019/36 : Auteur(s): H.-K. Choi, J.E. Jang, S.Y. Byeon, S. Chung, S.-G. Choi, H. W. Kim and H.J. Lee
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Classification of Southern Ocean krill and icefish echoes using Random Forests
two or more echosounder frequencies. For commonly used frequencies, however, the differences for krill ... Georgia, South Atlantic, one species in particular, mackerel icefish, Champsocephalus gunnari, forms ... echograms and analysis of differences in mean volume backscattering strengths (S V; dB re 1 m-1) measured at ... scattering fish species with an overall estimated accuracy of 95 %. Minimum S V, mean aggregation depth (m ...
Meeting Document : WG-EMM-16/23 : Auteur(s): N. Fallon, S. Fielding and P. Fernandes
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Impacts of rising sea temperature on krill increase risks for predators in the Scotia Sea
reducing fishing pressure is one option for mitigating the overall consequences for marine biota. We used a ... predator populations, especially penguins. Average penguin abundance declined by up to 30% of its ... tradeoffs among marine ecosystem services in an uncertain future. Author(s): E.S. Klein, S.L. Hill, J.T ...
Meeting Document : WG-EMM-18/P02 : Auteur(s): E.S. Klein, S.L. Hill, J.T. Hinke, T. Phillips and G.M. Watters
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The random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters of Heard Island (Division 58.5.2) for 2016
April, with the completion of 163 stations. The survey was conducted for the second year on the FV Atlas ... one-third the average for L. squamifrons. Conversely, the density of aggregated skates was higher than ... both 2015 and the long term average. The catch of invertebrates in the 2016 survey was two times higher ... tagged and released. Author(s): G.B. Nowara, T.D. Lamb and D.C. Welsford Title: The random stratified ...
Meeting Document : WG-FSA-16/23 : Auteur(s): G.B. Nowara, T.D. Lamb and D.C. Welsford
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An approach to feedback management (FBM) of the krill fishery based on routine acoustic data collection and intermittent land-based predator studies
-xxxvi-bg-20.docx Approval: Approved Secretariat Workflow Status: Content Approved Delegation ... the proposed framework provides a clear way forward it will take several years to implement fully due ... to the required development of methodology and time series data. Author(s): Delegations of ...
Meeting Document : SC-CAMLR-XXXVI/BG/20 : Auteur(s): Delegations of Norway, China and Chile
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Report of the UK Groundfish Survey at South Georgia (CCAMLR Subarea 48.3) in January/February 2019
of the two northern strata and at the western end of Shag Rocks, with one high catch recorded in the ... dominated by fish of 18-26cm (TL) indicating the presence of a cohort of age 1+ fish. Estimated biomass for ... (s): S. Gregory, P. Hollyman, T. Earl, A. Clement, J. Visagie, L. Featherstone and M. Belchier Title ...
Meeting Document : WG-FSA-2019/20 : Auteur(s): S. Gregory, P. Hollyman, T. Earl, A. Clement, J. Visagie, L. Featherstone and M. Belchier
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ANTARCTIC FUR SEAL PUP PRODUCTION AND POPULATION TRENDS IN THE SOUTH SHETLAND ISLANDS WITH SPECIAL REFERENCE TO SOURCES OF ERROR IN PUP PRODUCTION ESTIMATES
30 days after the median date of pupping was estimated for the years 1997-2007 at 4.5% (±0.60). Adult ... lower pup production estimates in 2007/08. Author(s): M.E. Goebel (USA), D.E. Torres C. (Chile), A ...
Meeting Document : WG-EMM-PSW-08/14 : Auteur(s): M.E. Goebel (USA), D.E. Torres C. (Chile), A. Miller, J. Santora, D. Costa (USA) and P. Diaz (Chile)
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Diseases outbreak threatens Southern Ocean albatrosses
observed recently. Here we show that two highly pathogenic diseases (worldwide spreading avian cholera ... chicks during their first weeks of life with a cyclic pattern between years, but also adult birds that ... world raises major concern for the conservation of the Southern Ocean environment. Author(s): H ...
Meeting Document : WG-EMM-03/32 : Auteur(s): H. Weimerskirch (France)
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Plan of research program of the Ukraine in Subarea 48.2 in 2016 (second season)
2016. Investigated area will be demarcated on two blocks- Northern and Southern. During the season of ... year 2016 we propose to remain the majority of surveys in the Northern Block as were conducted in year ... will be carried out within three years. Implementation of the tagging program in the long-term ... ratio 5 fish per ton in the Northern Block. Author(s): Delegation of Ukraine Title: Plan of research ...
Meeting Document : WG-FSA-15/45 : Auteur(s): Delegation of Ukraine