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Considerations on the design and evaluation of surveys for estimating recruitment of Patagonian toothfish (Dissostichus eleginoides) with preliminary outcomes for the Heard Island plateau region (Division 58.5.2)
Abstract: Assessments of long-term sustainable yield using the Generalised Yield Model and the ... setting of total allowable catches (TAC) for Patagonian Toothfish, Dissostichus eleginoides, for the Heard ... design for Division 58.5.2 is reviewed and estimates of optimal distribution of trawl stations among ... strata provided for estimates of abundance of individual pre-recruitment age classes and total abundance ...
Meeting Document : WG-FSA-SAM-04/19 : Автор(ы): Candy, S., Constable, A.J., Davies, C.R.
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Plan of research program of the Russian Federation in Subarea 48.5 (Weddell Sea) in season 2014/2015
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... subareas, where stock assessment should be carried out. In spite of hard ice conditions at most part of the ... Weddell Sea during most time of the year, this large water area is very similar with the Ross Sea. This ... from results of the fist and the second stage of this program, highlight the Weddell Sea as one of the ...
Meeting Document : WG-SAM-14/07 : Автор(ы): Delegation of the Russian Federation
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Plan of research program of the Russian Federation in Subarea 48.5 (Weddell Sea) in season 2014/2015
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... subareas, where stock assessment should be carried out. In spite of hard ice conditions at most part of the ... Weddell Sea during most time of the year, this large water area is very similar with the Ross Sea. This ... from results of the first and the second stage of this program, highlight the Weddell Sea as one of the ...
Meeting Document : WG-FSA-14/09 : Автор(ы): Delegation of the Russian Federation
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Model-based mapping of assemblages for ecology and conservation management: A case study of demersal fish on the Kerguelen Plateau
of Common Profile (RCP) to quantify and map the distribution of demersal fish assemblages in an ... ecologically significant region of the Southern Ocean to a) gain ecological and management insights and b ... ) evaluate the utility of the new method for ecoregionalisation. The RCP approach is a multi-species, model ... -based approach that can overcome many limitations of traditional distance-based approaches. It ...
Meeting Document : WS-SM-18/P02 : Автор(ы): N.A. Hill, S.D. Foster, G. Duhamel, D. Welsford, P. Koubbi and C.R. Johnson
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SELECTIVITY OF CONVENTIONAL AND CONTINUOUS TECHNIQUES OF KRILL FISHERY
Abstract: Combination of conventional and continuous techniques during krill fishery at the ... Russian commercial vessel "Maxim Starostin" allowed to compare the size structure of the ... Antarctic krill (Euphausia superba) caught by these two techniques. Results of comparison are discussed in ... relation to the selectivity of fishing gears and the space-time variability of krill. Differences between ...
Meeting Document : WG-EMM-11/14 : Автор(ы): D. Sologub (Russia)
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On biogeographic patterns of benthic invertebrate mega fauna on shelf areas of the Southern Ocean Atlantic sector
Abstract: The ideal approach to bioregionalisation of Antarctic and Southern Ocean shelf ... communities incorporates a range of data on physical, environmental and biological properties, as well as the ... interaction of these properties. Here, benthic invertebrate megafaunal communities of shelf habitats within ... the Atlantic sector of the Southern Ocean were analysed quantitatively from scientific survey trawl ...
Meeting Document : WS-BSO-07/10 : Автор(ы): S.J. Lockhart and C.D. Jones (USA)
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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 ... anticyclonic circulation formed by the Weddell waters. Confinement of the fish to the boundary of water masses ... between the shelf waters and ACC was also traced. Favourable conditions for formation of dense ...
Meeting Document : WG-FSA-05/77 : Автор(ы): Zh.A. Frolkina (Russia)
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Foraging strategies of chinstrap penguins at Signy Island, Antarctica: importance of benthic feeding on Antarctic krill
Abstract: Chinstrap penguins Pygoscelis antarctica are one of the major consumers of Antarctic ... trip patterns and diving behaviour of chinstrap penguins breeding at Signy Island, Antarctica, using ... time-depth recorders. Foraging trips of penguins could be divided into 2 groups, short diurnal (7.8 h ... ) and longer overnight (19.9 h) trips, with diurnal trips (74%) being dominant in number (263 out of 355 ...
Meeting Document : WG-EMM-03/37 : Автор(ы): A. Takahashi (Japan), M.J. Dunn, P.N. Trathan (United Kingdom), K. Sato, Y. Naito (Japan), J.P. Croxall (United Kingdom)
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Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) biomass
Abstract: A large-scale acoustic survey of zooplankton stocks of the waters around South Georgia ... various definitions of strata. The total biomass in the area of 155 786 km2 was estimated to be 1.8225 x ... 106 t (Coefficient of Variation = 9.5%). This gives an estimate of mean density throughout the region ... of 11.7 t km-2. Although the estimate of the mean is not sensitive to the definition of strata, the ...
Meeting Document : WG-KRILL-91/30 : Автор(ы): E. Murphy, I. Everson and A. Murray (United Kingdom)
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The Role of Fish as Predators of Krill (Euphausia superba) and Other Pelagic Resources in the Southern Ocean
number of food studies were conducted. Currently, the best estimates of krill consumption by fish are 23 ... – 29. 106 tonnes of krill and other pelagic prey taken annually by demersal fish and 7 – 44. 106 tonnes ... confidence limits. Major shortcomings of the consumption estimated for mesopelagic fish are the validity of ... hydro-acoustic biomass estimates conducted in the late 1980’s and the lack of quantitative food ...
Meeting Document : CCAMLR-IWC-WS-08/09 : Автор(ы): Collins, M.A., Williams, R., Agnew, D.J., Kock, K.-H., Belchier, M., Shust, K.V., Welsford, D., Hanchet, S., Pshenichnov, L., Barrera-Oro, E.
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