Resultados de la búsqueda
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On acceptable scattering of longlines geo-referencing in the toothfish fishery in the CAMLR Convention Area
Abstract: The issues of longlines geo-referencing during the exploratory fisheries of the ... toothfish in the Convention Area are discussed. Cases of differences in the coordinates of settings and ... haulings are considered. The estimation of the maximum possible variation of the coordinates in the depths ... range of 550-3000 m was performed. It is shown that the differences of coordinates of settings and ...
Meeting Document : WG-SAM-2019/22 : Autor(es): O. Krasnoborodko
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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
this new method are similar to those of the Agnew and Kirkwood (2005) method, and this suggests that ... the current method is adequate under circumstances of low evasion and when good knowledge exists that ... zero observations reflect zero illegal fishing. The new method performs better in the case of zero ... detections and can potentially better handle the evasion of detection by illegal activity. Both the new and ...
Meeting Document : WG-FSA-05/P7 : Autor(es): Ball, I.
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Food consumption estimates of southern elephant seal females during their post-breeding aquatic phase at South Shetland Islands
, King George Island (25 de Mayo). During lactation females spent a mean of 6021±1365 Mj, which resulted ... in a loss of 35% of the initial mass, comprising 63% of initial body fat and 20% of initial body ... to recover an average of 55% of the mass, including 46% of the fat, 71% of the protein and 47% of the ... gained while at sea. However, protein loss expressed in absolute terms or as a proportion of that present ...
Meeting Document : WG-EMM-04/33 : Autor(es): A.R. Carlini, G.A. Daneri, M.E.I. Márquez (Argentina), H. Bornemann (Germany), H. Panarello, R. Casaux (Argentina), S. Ramdohr and J. Plötz (Germany)
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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
is adequate under circumstances of low evasion and for when good knowledge exists that zero ... observations reflects zero illegal fishing. The new method performs better in the case of zero detections and ... can potentially better handle the evasion of detection by illegal activity. Both the new and the ... current method suffer from the type of observations method used, which directly affects the system. This ...
Meeting Document : WG-FSA-04/63 : Autor(es): I. Ball (Australia)
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003
Abstract: A preliminary assessment of yield of Patagonian Toothfish, Dissostichus eleginoides ... result of a randomly stratified trawl survey completed between 16 April and 10 May 2003. The 2003 ... estimate of abundance of recruits indicates a continuation of a period relatively low recruitment since ... preliminary estimate of sustainable long-term yield assessed using the standard method. The preliminary ...
Meeting Document : WG-FSA-03/33 : Autor(es): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)
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Report of the Workshop for the International Coordinated Survey in conjunction with CCAMLR-2000 Survey
Abstract: Vessels from Japan, Republic of Korea, Peru and the USA had participated in the conduct ... of five acoustic/oceanographic surveys from late December 1999 and to early March 2000 in conjunction ... %), 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 ... each of the surveys are presented, and examination of these maps suggests three consistent area of high ...
Meeting Document : WG-EMM-01/68 : Autor(es): Delegations of Japan, Rep. of Korea, USA and Peru
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The ‘CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean’
Abstract: The "CAML / SCAR-MarBIN Biogeographic Atlas of the Southern Ocean" Claude De ... of primary importance for monitoring biodiversity and detecting impacts of environmental changes ... , developing the bio/ecoregionalisation of the Southern Ocean, designing marine protected areas, conducting ... comparative biogeographic analyses or discovering marine biodiversity hotspots. At the end of five years of ...
Meeting Document : WS-MPA-11/15 : Autor(es): C. De Broyer (Belgium) and P. Koubbi (France)
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Comparative biological characteristics of Electrona carlsbergi (Tåning) (Myctophidae) from the notal and Antarctic areas in the Southern Ocean Atlantic sector
Abstract: Some biological peculiarities of E. carlsbergi from the Antarctic and notal areas of ... the Southern Ocean Atlantic sector have been studied on the basis of the data for 1987-1989. Mean ... length of fish from the Antarctic area increased while drifting eastward in the Antarctic circumpolar ... current waters. Fish specimens from 62 to 97 mm long were registered in catches. About 95% of specimens ...
Meeting Document : WG-FSA-90/21 : Autor(es): K.V. Gorchinsky, V.M. Kiseleva and A.A. Filin (USSR)
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Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer
Abstract: Four successive surveys of the pelagic marine environment were conducted over a 100-by ... were collected to describe the thermohaline structure, the distribution of phytoplankton biomass and ... primary productivity, the distribution and demography of krill, and the foraging patterns of krill ... predators. A hydrographic front, north of Elephant Island and aligned southwest-to-northeast, persisted ...
Meeting Document : WG-CEMP-90/11 : Autor(es): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)
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Larval development and spawning ecology of euphausiids in the Ross Sea and its adjacent waters in 2004/05
Abstract: The horizontal and vertical distributions of larvae and reproductive timing of ... . Occurrences of larvae of Euphausia frigida and E. triacantha were confined to the northern oceanic area where ... distribution further southward to the area where cooler Lower Circumpolar Deep Water prevailed. Larvae of ... juvenile or adult stages. Eggs and larvae of E. superba occurred with gravid females along the slope, but ...
Meeting Document : WG-EMM-10/P06 : Autor(es): K. Taki, T. Yabuki, Y. Noiri, T. Hayashi and M. Naganobu