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  1. Using vessel acoustics to detect diving patterns of krill foraging predators automatically: Development of a novel method for quantifying impact of krill fishing on seals and penguins

    Abstract:  The aim of this work was to assess the possibilities of automatically generating a ... dataset of dive behaviour of air-breathing predators, based on acoustic data from a monitoring survey and ... from commercial krill fishing operations. Our results documents that some form of automatic detection ... of diving predators in the data is feasible. A relatively low detection probability of our algorithms ...

    Meeting Document : WG-EMM-15/25 : Автор(ы): T.A. Klevjer, O.R. Godø and B. Krafft (Norway)

  2. Report of the SC-CAMLR Observer (Japan) to the Fourth Meeting of the Scientific Committee of the Southern Indian Ocean Fisheries Agreement (SIOFA) (Yokohama, Japan, 25 to 29 March 2019)

    Abstract:  The Fourth Meeting of the Scientific Committee (SC4) of the Southern Indian Ocean ... Fisheries Agreement (SIOFA) was held at the National Institute of Fisheries Science, in Yokohama, Japan from ... the CCAMLR Secretariat’s Science Manager attended  at the invitation of the Executive Secretary of ... SIOFA, Jon Lansley, as part of the ongoing development of collaboration between CCAMLR and SIOFA. The ...

    Meeting Document : SC-CAMLR-38/BG/12 : Автор(ы): SC-CAMLR Observer (Japan)

  3. Hydroacoustic assessment of krill in Area 58 of the Indian Ocean sector of the Antarctic region

    Abstract:  On the basis of acoustically registered krill swarms along a 1097 nm transect in the ... area 58 of Indian Ocean Sector of Antarctic region, the biomass density of krill, their spatial and ... depth distribution are presented. The mean density of krill biomass between 60°00'S and 61°00' ... ; S parallels 34°00'E and 40°00'E meridian was recorded as 0.6t.km-2. Presence of krill was ...

    Meeting Document : WG-EMM-98/36 : Автор(ы): Z. Klusek and A. Anrose (India)

  4. Interannual variability of the South Georgia marine ecosystem: biological and physical sources of variation in the abundance of krill

    Abstract:  Interannual variability is a characteristic feature of the Southern Ocean ecosystem yet ... the relative roles of biological and physical processes in generating these fluctuations are unknown ... . There is now extensive evidence that there are years when there is a very low abundance of Antarctic ... krill (Euphausia superba) in the South Georgia area, and that the variation affects much of the ...

    Meeting Document : WS-AREA 48-98/8 : Автор(ы): E.J. Murphy, J.L. Watkins, K. Reid, P.N. Trathan, I. Everson, J.P. Croxall, J. Priddle, M.A. Brandon, A.S. Brierley (UK) and E. Hofman (USA)

  5. COMPARATIVE CHARACTERISTICS OF BASIC BIOLOGICAL PARAMETERS OF TWO TOOTHFISH SPECIES IN HIGH-LATITUDE SEAS OF THE ANTARCTIC

    Abstract:  Scientific data were obtained during the fishery cruise of Spanish long-liner «Tronio ... » in the areas of the Ross Sea and the Antarctic continental shelf (statistical subareas 88.1 and ... 58.4.1) outside the exclusive (marine) economic zones of foreign states, in the period from 5 November ... , 2007 till 24 March, 2008. In the paper size characteristics of Antarctic and Patagonian toothfishes ...

    Meeting Document : WG-FSA-08/12 : Автор(ы): A.K. Zaytsev (Ukraine)

  6. IMPLEMENTATION OF FOOSA (KPFM) IN THE EPOC MODELLING FRAMEWORK TO FACILITATE VALIDATION AND POSSIBLE EXTENSION OF MODELS USED IN EVALUATING KRILL FISHERY HARVEST STRATEGIES THAT WILL MINIMISE RISK OF LOCALISED IMPACTS ON KRILL PREDATORS

    main parts – an outline of the structure of EPOC, consideration of the general FOOSA structure that ... needs to be implemented and a description of the implementation of FOOSA in EPOC. The latter section ... predators, the krill fishery and the system for setting catch limits. The process of implementing FOOSA in ... a minimal realistic model. A number of revised functions are developed as options to reflect ...

    Meeting Document : WG-SAM-08/15 : Автор(ы): A. Constable (Australia)

  7. INDICATIVE ESTIMATES OF BIOMASS AND YIELD OF WHITSON’S GRENADIER (M. WHITSONI) ON THE CONTINENTAL SLOPE OF THE ROSS SEA IN SUBAREAS 88.1 AND 88.2

    being equal to 16% of the catch limit of Dissostichusspp. in these subareas. The 16% was based on the ... ratio of the by-catch limit for macrourids to the catch limit for Dissostichus spp. in Division 58.5.2 ... been based on the extrapolation of catch rates from a trawl survey of M. carinatus on Banzare Bank. Two ... bottom trawl surveys (IPY_CAML and BioRoss) have recently been carried out by New Zealand on parts of the ...

    Meeting Document : WG-FSA-08/32 : Автор(ы): S.M. Hanchet, D. Fu and A. Dunn (New Zealand)

  8. Definition of the problem of estimating fish abundance over an area from acoustic line transect measurements of density

    Abstract:  The problem of acoustic abundance estimation is briefly reviewed. Under proper ... particular problem of estimating fish abundance over an area from line-transect measurements of fish density ... is defined. Related problems of estimating the variance of the abundance estimate and of mapping the ... spatial distribution are also defined. A partial list of candidate methods for solving the several ...

    Meeting Document : WG-KRILL-91/08 : Автор(ы): K.G. Foote and G. Stefánsson (Norway)

  9. The influence of the shape of meshes on the selective properties of trawls with special reference to Antarctic krill

    Abstract:  The results of investigations are presented on selective properties of experimental ... trawls with a square- and diamond-shaped mesh, on the traumatic rate of krill passed through a mesh and ... screening rate was observed in the cod end instead of the belly,the selective properties of the retaining ... part of the trawl are improved and at the same time the selectivity range of retained fish gets lower ...

    Meeting Document : SC-CAMLR-VIII/BG/09 : Автор(ы): Delegation of USSR

  10. Report of the 1st and the 2nd stage of research fishing conducted by Russian Federation in SSRU 882A in 2010–2012 (this is a revision of WG-SAM-12/08)

    Abstract:  In accordance with decision of CCAMLR Scientific Committee in 2010 and in 2011 years ... Russian vessel “Chio Maru 3” (“Antei” Ltd.) has been conducted research fishing of toothfish. The primary ... objective of the works in the SSRU was estimation of toothfish`s distribution density and carrying out of ... biomass of toothfish in SSRU 88.2 A in significant and makes up from 2611.3 to 3112.3 t, which allows the ...

    Meeting Document : WG-FSA-12/15 : Автор(ы): E.F. Kulish and I.I. Gordeev (Russia)

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