Resultados de la búsqueda
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Inter-annual variability in krill density at South Georgia: 1997–2012
resets ranged several orders of magnitude (0 to 10 000 gm-2) and its distribution was highly skewed with ... , mean density for the area) showed several years of moderate to high values (µ > 30 gm-2 ... ) interspersed with years (1999-2000, 2004, 2009-2010) of very low density (µ < 30 gm-2). Author(s): S ...
Meeting Document : WG-EMM-13/14 : Autor(es): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)
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Variability and predictability of Antarctic krill swarm structure
revealed 2 principal swarm types, which differed in both their dimensions and packing-concentrations. Type ... ) whereas type 2 swarms were an order of magnitude larger and had packing concentrations up to 10 times ... and large and superswarms within the type 2 group. A minor group (swarm type 3) was also found ... . Larger (type 2) swarms were more commonly found during nighttime or when it was overcast during the day ...
Meeting Document : WG-EMM-10/P10 : Autor(es): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper
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Further development and progress towards evaluation of an Antarctic toothfish (Dissostichus mawsoni) stock model for the Ross Sea
(single-area). The second and third scenarios (2-area and 3-area respectively) split the Ross Sea into ... either two or three discrete areas, with migrations of fish between areas. The 2-area model appeared to ... data simulated from the 2-area model. All the multi-area models investigated here could do with ...
Meeting Document : WG-FSA-SAM-05/12 : Autor(es): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)
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Report of the Workshop for the International Coordinated Survey in conjunction with CCAMLR-2000 Survey
the highest and lowest surveys, biomass densities on three remaining surveys were 49.2 g m-2 (CV 19.5 ... %), 39.5 g m-2 (CV 15.2 %) and 43.0 g m-2 (CV 14.1 %) over a nine-week period. Maps of biomass density for ...
Meeting Document : WG-EMM-01/68 : Autor(es): Delegations of Japan, Rep. of Korea, USA and Peru
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An evaluation of reduced target strength estimates reported for krill (Euphausia superba)
strength from the data and fall into three categories: 1) Errors in measurements and assumptions; 2 ... directivity effects as a result of items under category 1; an estimated 2-3 dB bias due to systematic errors ... under category 2; and an estimated 3-4 db error due to category 3. Thus there is reason to believe that ...
Meeting Document : WG-KRILL-90/13 : Autor(es): M.C. Macaulay (USA)
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Spatio–temporal dynamics of Antarctic krill fishery: identification of fishing hotspots
and temporal pattern of the fishery is only described in meso to macro scales (>>10 4 km 2 ... (>10 ton∙km-2) during years when the catch limit is reached. The analysis show that the krill ... that the catch density (ton∙km-2) inside the FHs is correlated with the total catch obtained ...
Meeting Document : WG-EMM-16/52 : Autor(es): F. Santa Cruz, B. Ernst and J.A. Arata
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Acoustic estimates of krill density at South Georgia, December/January 1998/99
krill density there. Densities (east = 11.1 g m-2, west = 12.0 g m-2) were towards the lower end of the ...
Meeting Document : WG-EMM-99/20 : Autor(es): A.S. Brierley and C. Goss (United Kingdom)
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Annex to WS-DmPH-18 report: Towards the development of a stock hypothesis for Antarctic toothfish (Dissostichus mawsoni) in Area 48
Abstract: Annex paper to the WS-DmpH-18 meeting report (part 2 of 2) Author(s): M. Söffker, A ...
Meeting Document : WG-SAM-18/33 Rev. 1 : Autor(es): M. Söffker, A. Riley, M. Belchier, K. Teschke, H. Pehlke, S. Somhlaba, J. Graham, T. Namba, C.D. van der Lingen, T. Okuda, C. Darby, O.T. Albert, O.A. Bergstad, P. Brtnik, J. Caccavo, A. Capurro, C. Dorey, L. Ghigliotti, S. Hain, C. Jones, S. Kasatkina, M. La Mesa, D. Marichev, E. Molloy, C. Papetti, L. Pshenichnov, K. Reid, M.M. Santos and D. Welsford
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Cruise report of multidisciplinary ecosystem survey in the eastern Indian sector of the Antarctic (CCAMLR Division 58.4.1) with a focus on Antarctic krill during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
season for 53 days. The survey consisted of 2 survey periods: Leg 1 (from 15 December 2018 to January ... 2019; 24 days) and Leg 2 (from 26 January to 23 February 2019; 29 days). Leg 1 was commenced at ice ... edge on 80°E and ended at ice edge on 120°19.0’E. Leg 2 was commenced at 63°00.0’S on 150°00.0’E and ... the Totten Glacier) were also conducted during Leg 2. RMT tows were carried out at 72 stations (40 ...
Meeting Document : WG-EMM-2019/42 : Autor(es): H. Murase, K. Abe, R. Matsukura, H. Sasaki, R. Driscoll, S. Driscoll, F. Schaafsma, M. van Regteren, Q. Yang, H. Ohshima, K. Ohshima, R. Sugioka, J. Tong, N. Yamamoto, H. Doiguchi, E. Briggs, K. Doi, D. Hirano, K. Katsumata, M. Kiuchi, Y. Ko, D. Nomura, M. Orui, H. Sato, S. Toyoda, K. Yamazaki, T. Ishihara, K. Hamabe, S. Kumagai, T. Miyashita, N. Yamada, Y. Koyama and H. Sasaki
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SUMMARY OF SCIENTIFIC OBSERVATIONS RELATED TO CONSERVATION MEASURES 24-02 (2008), 25-02 (2009), 25-03 (2009) AND 26-01 (2009)
limitations on Euphausia superba in Statistical Subareas 48.1, 48.2, 48.3 and 48.4”. Waste Disposal 2. The ... presence of bait box packaging bands on board vessels was reported by observers on 2 cruises, Jung Woo No ... . 2 and Jung Woo No. 3 (Table 1). Observers reported that all bait box packaging bands were cut and ...
Meeting Document : WG-FSA-10/08 : Autor(es): Secretariat