Résultats de la recherche
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A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula
Paper Title: A fine-scale model of the overlap between penguin foraging demands and the krill ... using the total catch of krill taken within 100 km of penguin colonies in their breeding season ... distribution of the krill fishery in Subarea 48.1 (South Shetland Islands). As this index has proven unsuitable ... the krill resource and is based on a detailed model of penguin foraging patterns combined with catch ... alimentacion de 10s pingiiinos y la distribution de la pesqueria de kril en la SubArea 48.1 (islas Shetland ... refleja la interaccion funcional entre estos dos Agnew and Phegan consumidores del recurso kril y se ... maximum bearings (Figure 1). Specific data on critical parameters for penguin foraging distances and ... 5 show the estimated distribution of foraging penguins in Subarea 48.1 at a ' Specific data for ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 99–110 : Auteur(s): Agnew, D.J. and G. Phegan
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Assessment of krill flux factors in waters of South Orkney Islands during summer 1996
Paper Title: Assessment of krill flux factors in waters of South Orkney Islands during summer ... February to 7 March 1996 to assess krill flux factors in Subarea 48.2. The study area (80 x 240 n miles ... the Weddell Sea. The study area covered sites where high krill concentrations had often been observed ... in the past. The geostrophic transport of krill across boundaries of the study area was calculated as ... passive phenomenon caused by water currents, and there are data on active krill migration (Kanda et al ... . Preliminary results of experiments on krill study in the South Orkney area (April, 1992). Document WG-CEMP ... statistical Area 58 of CCAMLR in the Southern ocean. Document WG-Krill-93/22. CCAMLR, Hobart, Australia ... between December 1990 and February 1991: outstanding coastal upwelling. Document WG-Krill-92/24. CCAMLR ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 195–204 : Auteur(s): Kasatkina, S.M., V.N. Shnar, M.I. Polischuk, A.M. Abramov and V.A. Sushin
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KRILLBASE: a multinational, circumpolar database of abundance of Antarctic krill and salps
contains data on krill from ~12,520 hauls and data on salps from ~10,832 hauls. These span 49 seasons in ... KRILLBASE includes additional standardised krill density data representing the expected density from a ... data have been collected on the abundance of the two taxa from net sampling surveys since 1926, but ... scientists has collated these disparate data into a central database called KRILLBASE, a composite ...
Meeting Document : SC-CAMLR-XXXV/BG/24 Rev. 1 : Auteur(s): A. Atkinson, S. Hill, H. Peat, R. Downie and L. Gerrish
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Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993
Paper Title: Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993 Abstract ... / Description: Acoustic estimates of krill biomass in the vicinity of Elephant Island are presented for the ... previous reports adjusted for the recently proposed definition of krill target strength (Greene et al ... distribution in the vicinity of Elephant Island during AMLR investigations 1988-92. Document WG-Krill-92/12 ... . Resumen Se presentan 10s calculos de biomasa del kril de la zona de isla Elefante realizados de 1981 a ... la definici6n de la potencia del blanco del kril propuesta recientemente (Greene et al., 1991). Los ... , for consideration by the Working Group at its 1993 meeting. DATA SOURCES Macaulay et al. (1984 ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 1–5 : Auteur(s): Hewitt, R.P. and D.A. Demer
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Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3
Paper Title: Towards an initial operational management procedure for the krill fishery in ... Subareas 48.1, 48.2 and 48.3 Abstract / Description: An operational management procedure for krill ... on the Krill CPUE Simulation Study. Annual TACs are restricted to an initial ceiling (C c) for a five ... 0.75 CPUE ref. An operating model of krill dynamics in the region is developed for simulation testing ... krill resource. Application of the estimator to these data provides an estimate of the relative size of ... account in the operating model which generates CPUE data as a function of the size of the krill biomass ... for fisheries management elsewhere in the world. For example, data are seldom adequate to allow ... that other information ("ancillary data") regarding krill and its predators in the region concerned is ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Auteur(s): Butterworth, D.S.
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Some thoughts on precautionary measures for the krill fishery
Paper Title: Some thoughts on precautionary measures for the krill fishery Abstract / Description ... : The concept of precautionary measures for krill is discussed. A precautionary catch limit, based on ... the potential yield model developed by the CCAMLR Scientific Committee's Working Group on Krill ... (WG-Krill) is discussed and it is concluded that such a method is appropriate in setting an overall ... Kril (WG-Krill) del Cornit6 Cientifico de la CCRVMA. Se concluye que, si bien este enfoque resulta ... ) Fish ? Taken together these figures indicate that a reasonable estimate of krill consumption might ... some sites, such as South Georgia; and (iv) fine-scale catch and effort data from the krill fishery ... restricted to such a situation. On a Southern Ocean scale data on the annual consumption of krill by ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 1–11 : Auteur(s): Everson, I. and W.K. de la Mare
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Selectivity of commercial and research trawls in relation to krill
, estimates of krill length based on data obtained using either commercial or research trawls will be biased ... Paper Title: Selectivity of commercial and research trawls in relation to krill Abstract ... / Description: This paper describes the results of fishing a single krill aggregation with a commercial trawl ... more large krill (35-58 mm) than catches of the research trawl (30-54 mm). The maximum difference in ... , estimates of krill length based on data obtained using either commercial or research trawls will be biased ... CV( E ) = 5.7%. Histograms of krill length distribution in each catch and summary length data are ... same MSBS value (-55 dB), krill density estimated on the basis of commercial trawl data will be lower ... than that obtained with the IKMT research trawl data. For the maximum observed difference in krill ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 161–169 : Auteur(s): Kasatkina, S.M
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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
Paper Title: Midwater trawl catchability as an aspect of a quantitative assessment of krill ... catchability and krill distribution patterns. A comparative analysis of trawl catchability for commercial ... high relative error. A standard method for conducting krill trawl census surveys needs to be developed ... total amount of krill entering the trawl should be carried out when selecting trawl construction. File ... distributional patterns of the targetted krill swanns were studied. Tables 2 to 4 give mean statistical data ... , document, WG-Krill-90/20. SIEGEL, v. 1982. Investigation on Post Spawning Concentration of the Antarctic ... to krill total exemption assessment. Document, WG-Krill-90/22. CCAMLR, Hobart, Australia. 265 ... from formulas 3 to 7, the error in biomass assessment from trawl survey data is determined by ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Auteur(s): Kasatkina, S.M.
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Krill (Euphausia superba Dana) resources and distribution in the Wilkes Land area in the seasons 1986 to 1989
Paper Title: Krill (Euphausia superba Dana) resources and distribution in the Wilkes Land area in ... the seasons 1986 to 1989 Abstract / Description: Results of krill (Euphausia superba Dana) resource ... mainly focused on the search for exploitable krill aggregations. Two research vessels were simultaneously ... involved in the survey with one vessel conducting commercial krill fishing. The whole survey area from the ... it is in subarea ll. Data for many years show that optimum conditions for the formation of krill ... document. Les campagnes ont tout particulierement porte sur la recherche de concentrations exploitables ... circulation is also incorporated in Figures 2 to 4. Unfortunately, hydrological data were not available for ... all periods of observation and, in some cases, they were incomplete. Such data were not available for ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 149–162 : Auteur(s): Dolzhenkov, V.N. and V.P.Timonin
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The CCAMLR-2000 Krill Synoptic Survey: a description of the rationale and design
Paper Title: The CCAMLR-2000 Krill Synoptic Survey: a description of the rationale and design ... Abstract / Description: The design of the CCAMLR-2000 Krill Synoptic Survey (CCAMLR-2000 Survey) is ... krill which are used in models to estimate sustainable yield in Area 48. The survey design includes two ... will take several years and will result in a significant increase in the knowledge of krill length ... and random sample survey analyses of Antarctic krill acoustic data. ICES J. Mar. Sci., 53: 415-421 ... . 1992. Krill biomass in Area 48 and Area 58: recalculatio~l of FIBEX data. In: Selected Scientific ... Sud et des iles Shetland du Sud. Dans ce document sont decrites les raisons ayant determine la ... rationale and design Resumen Este document0 describe el diseiio de la prospeccion sinoptica de kril ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 1–23 : Auteur(s): Trathan, P.N., J.L. Watkins, A.W.A. Murray, A.S. Brierley, I. Everson, C. Goss, J. Priddle, K. Reid, P. Ward, R. Hewitt, D. Demer, M. Naganobu, S. Kawaguchi, V. Sushin, S.M. Kasatkina, S. Hedley, S. Kim and T. Pauly