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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 ... CCAMLR Science, Vol. 1: 1-5 ACOUSTIC ESTIMATES OF KRILL ... BIOMASS IN THE ELEPHANT ISLAND AREA: 1981 - 1993 R.P. Hewitt Southwest Fisheries Science Center La ... 92093, USA (Supported by the Hertz Foundation) Abstract Acoustic estimates of krill biomass in the ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 1–5 : Автор(ы): 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 : Автор(ы): 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 ... 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 ... survey. Document WG-Krill-92/4. CCAMLR, Hobart Australia. Croxall, J.P. 1984. Seabirds. In: Laws, R.M ... PRECAUTIONARY MEASURES FOR THE KRILL FISHERY I. Everson British Antarctic Survey High Cross, Madingley Road ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 1–11 : Автор(ы): 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 : Автор(ы): 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 ... WG-KRILL-91/32 MIDWATER TRAWL CATCHABILITY AS AN ASPECT ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Автор(ы): 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 ... WG-KRILL-90/18 KRILL (EUPHAUSIA SUPERBA DANA) RESOURCES ... V.P.Timonin* Abstract Results of krill (Euphausia superba Dana) resource surveys carried out along the ... for exploitable krill aggregations. Two research vessels were simultaneously involved in the survey ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 149–162 : Автор(ы): 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 ... KRILL SYNOPTIC SURVEY: A DESCRIPTION OF THE RATIONALE AND DESIGN P.N. Trathan W , J.L. Watkins ... Kingdom Email - pnt@mail.nerc-bas.ac.uk R. Hewitt and D. Demer Southwest Fisheries Science Center ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 1–23 : Автор(ы): 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
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A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey
Antarctic krill (Euphausia superba) across the Scotia Sea using data from the CCAMLR 2000 Krill Synoptic ... reconstruction of krill distribution, given the data. The Bayesian framework also allows intrinsic calculation of ... Paper Title: A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across ... Survey of Area 48 (CCAMLR-2000 Survey) and to map the density distribution of krill across the survey ... Scotia Sea using data from the CCAMLR 2000 Krill Synoptic Survey of Area 48 (CCAMLR-2000 Survey) and to ... an objective choice of the most probable reconstruction of krill distribution, given the data. The ... recon- struction, since the data consist of point estimates of krill density derived from echo ... data can be considered as an image in which krill densities are plotted on a rectangular grid, with ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Автор(ы): Heywood, B.G., A.S. Brierley and S.F. Gull
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Midwater trawl catchability in relation to krill and possible ways of assessing gross catch
Paper Title: Midwater trawl catchability in relation to krill and possible ways of assessing ... the basis of data obtained from AtlantNIRO expeditions from 1983 to 1990 in the Scotia Sea. A ... methodology was developed for and applied to determining the rate of krill filtration through the trawl rope ... and netting and also the probability that krill will come into contact with various parts of the net ... (Methodical Instructions ... 1983) was employed for the collection of data on krill escapement through the ... distributional characteristics of targetted krill concentrations and based on data from 250 hauls in various ... pass through the rope and broad-mesh sections. Data on krill retention by fine-meshed chafers ... , escapes. These data indicate that krill filtration in the belly of the trawl is an unavoidable ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Автор(ы): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov
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The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
, Antarctica, and its overlap with the krill fishery Abstract / Description: The foraging ranges of six female ... when the sea became ice free to the coast. Concentrations of krill, Euphausia superba, which have in ... . Robertson Land Coast (approximately 150 000 pairs) and any future harvest of krill in the region. The ... in the South Shetland and South Orkney Islands and reflects the distance offshore of krill, one of ... and the locations of previous krill fisheries. 2. METHODS The study was commenced in November 1991 ... , together with the position of the continental shelf break and the locations of previous krill fisheries ... BECHERV AISE ISLAND, MAC. ROBERTSON LAND, ANTARCTICA, AND ITS OVERLAP WITH THE KRILL FISHERY K.R ... the sea became ice free to the coast. Concentrations of krill, Euphausia superba, which have in the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 337–344 : Автор(ы): Kerry, K.R., J.R. Clarke and G.D. Else
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