Search results
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Population change in gentoo penguins Pygoscelis papua at South Georgia: potential roles of adult survival, recruitment and deferred breeding
, South Georgia from 1977-1992 are used, in conjunction with empirical (and some hypothetical) data on ... years were associated with reduced availability of krill, one with very cold winter and spring ... conditions. Comparing model and reality indicates that deferred breeding could account for the discrepancy in ... , it is likely that some immigration occurred. Detailed field studies from 1987-1991 established that ...
Meeting Document : WG-CEMP-93/08 : Author(s): J.P. Croxall and P. Rothery (United Kingdom)
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On the scientific observation and krill escape mortality in the krill fishery
highlighted the magnitude of the scientific uncertainties and data gaps that are hampering progress with ... mortality should be introduced on all krill fishing vessels that carry scientific observers onboard. To ... Abstract: For several years (2006-2009) the Ukraine has been proposing that international or ... data that can fill existing uncertainties, the Ukraine proposed to enhance Conservation Measure 51-06 ...
Meeting Document : CCAMLR-XXIX/45 : Author(s): Delegation of Ukraine
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A survey plan of Japanese RV Kaiyo Maru in 2004/05 for the Ross Sea and adjacent waters, Antarctica
and February 2005. Transect lines along 180, 175E and 165E will be set to cover hot spots where ... shelf off the Victoria Land and the Bay of Whale Bay. The 175E line, especially, will be surveyed in ... ): M. Naganobu, K. Taki and T. Hayashi (Japan) Title: A survey plan of Japanese RV Kaiyo Maru in 2004 ...
Meeting Document : WG-EMM-04/47 : Author(s): M. Naganobu, K. Taki and T. Hayashi (Japan)
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Small scale krill surveys: simulations based on observed euphausiid distributions
l(a) and l(b). Although these are not E. superba (being Meganyctiphanes) and are on a very small scale (60 m diameter ... that the coefficient of variation (CV) of mean krill density varies inversely with mean density, and is ... that with probability of Type I and Type II errors 0.1 and 0.2 respectively, about 100 transects would ... be required to detect changes of 40% in the mean if CVs are as high as those obtained in the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Author(s): Agnew, D.J. and S. Nicol
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Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass
-0, H ~ O ~ X O A H M O TWaTeJlbHO I43YYHTb BOnpOC 0 BnMRHHI4 MSMeHYMBOCTM TeMIIepaTypbI B paf io~e C'beMKI4 Ha pe3J'JIbTaTbI ... as being the most accurate and practicable for calibration of ship-borne scientific echosounders (Foote ... undertaken in temperate European waters. The most recent of these took place in August 1995 at Uggdalseidet ... de Q &arts-types. Ta6n~ya 2: Cpen~Ile BeJIHqMHbI YCkIJleHMX npeo6pa3osa~en~ S, M TS, a TaKXe MX ... therefore be made to ensure that echosounders are calibrated at temperatures as close as possible to those ... Paper Title: Variations in echosounder calibration with temperature, and some possible ... which suggest that echosounder transducer performance is dependent on ambient water temperature. Highly ... European calibration parameters were to be employed during surveys around South Georgia, and no account ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Author(s): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
and abundance of the stock being assessed. CCAMLR currently uses results from the krill yield model as a basis ... annual yield on (i) the probability of the spawning stock being reduced below a set proportion ... level given for a set probability of critical depletion being too high. However, this will not affect ... for uncertainty in the biological parameters and abundance of the stock being assessed. CCAMLR currently uses ... of the stock being assessed. CCAMLR currently uses results from the krill yield model as a basis for setting ... yield on (i) the probability of the spawning stock being reduced below a set proportion of the median ... level given for a set probability of critical depletion being too high. However, this will not affect ... K ~ @ O ~ K T ~ M , OKa3bIBaeMbIM 3aAaHHbIM 065eM0~ nOnrOCPOYHOr0 rOAOBOr0 BbIJIOBa Ha (i) BePOXTHOCTb CHaAa HepeCTOBOrO 3aIIaCa ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 1–8 : Author(s): Constable, A.J. and W.K. de la Mare
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Some specific features of the USSR krill fishery and possibilities of applying fishery statistics to studies of krill biology and stocks
krill fishery, it is shown that the catch-per-haul variables are associated with the fishing regime of ... the vessel rather than with krill abundance in a certain area. During preparations for regular fishing ... operations very short hauls (under 15 minutes) are practised. Such fishing practice, together with ... -term behaviour patterns have an impact. All these factors limit the extent to which CPUE can be used in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 237–252 : Author(s): Dolzhenkov, V.N., T.G. Lubimova, R.R. Makarov, S.S. Parfenovich and V.A. Spiridonov
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Effect of two natural repellents on the depredation of mackerel baits by white-chinned petrels (Procellaria aequinoctialis)
Abstract: Longline fisheries worldwide have interactions that can be harmful or fatal to seabirds ... mackerel (Scomber scombrus) baits treated with capsaicin and piperine mixtures, and untreated baits ...
Meeting Document : WG-FSA-07/18 : Author(s): N. Gasco (France) and J.P. Pierre (New Zealand)
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The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3
pa3 npeBblmaJI o6~Hti BblJIOB 3Toro BH;lla B patioHe CKaJI IIIar. IIo ~aHHbIM paHee npoBe~eHHblx ... npOMbICeJI MO:>KHO BeCTH TOJIbKO CeT5.lMH C TaKotf MeJIKotf 5.llJeetf, KOTOpa5.1 TaK:>Ke y,llep:>KHBaeT ... 53° to 54°S and longitude 40° to 44°W. There are no reports of P.b. guntheri being taken as by-catch ... that by-catches will be made it must be remembered that they are being made using gear designed for the target ... species. The small size of P.b. guntheri means that they can only be caught with net meshes so small that ... / Description: Fine-scale data supplied to CCAMLR for 1987/88 showed that the catches of P atagonotothen ... data and reports to the CCAMLR Working Group on Fish Stock Assessment indicated that this species was ... they would also catch undersized individuals of other, larger species. Survey results suggest that such ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 275–283 : Author(s): Everson, I. and C. Mitchell
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Report of the CCAMLR Performance Review Panel
are being effectively utilised ............... 77 Review Panel recommendations ... to the Antarctic Treaty Reykjavik Declaration 2001 Reykjavik Declaration on Responsible Fisheries ... in the Marine Ecosystem Acronyms ACAP 2001 Agreement on the Conservation of Albatrosses and Petrels ... ) and the end of August when the final report was transmitted to the Secretariat in time for its circulation ... performance review of the organisation during 2008. CCAMLR’s decision provided for the review to be carried ... recognised experts with CCAMLR experience; the Chair of the Antarctic Treaty Consultative Meeting’s Committee ... external experts with experience in relevant areas of science, fisheries management and legal matters. Page ... the content of the report rests exclusively with its authors. The views and recommendations contained ...
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