Search results
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Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of mass and time of arrival of adults
International, 2000; Woehler et al., 2001; Bingham, 2002; Clausen and Huin, 2003; Puetz et al., 2003 ... 2000/01 18 Nov 18 Nov 18 Nov 11 Dec 11 Dec 11 Dec 2001/02 7 Dec 16 Nov 16 Nov 7 Dec 7 Dec 7 Dec 2002 ... 250 2001/02 2 Oct 100 10 Oct 100 7 Feb 250 2002/03 2 Oct 100 11 Oct 100 7–8 Feb 250 2003/04 ... 100 7 Nov 100 2–5 Mar 250 2001/02 3 Nov 100 7 Nov 102 28 Feb–3 Mar 250 2002/03 8 Nov 100 14 Nov 80 ... with that of females. Although both species had low masses on arrival after the El Niño Southern ... filholi) over 22 years, suggesting that overwintering conditions may influence the proportions of birds ... foraging range than rockhopper penguins when breeding, and may be more influenced at this stage by wider ... -scale environmental phenomena. For macaroni penguins, breeding success was significantly correlated with ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 175–190 : Author(s): Crawford, R.J.M., B.M. Dyer, J. Cooper and L.G. Underhill
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Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000
et al. (2002), Trathan et al. (2001) and SC-CAMLR (2000). Maps of survey tracks and trawl station ... in 3-dimensional space 0.021 0.164 0.039 Estimates of trawl catchability 0.049 0.07 0.043 Calculated catch per ... , S. Kawaguchi, V. Sushin, S.M. Kasatkina, S. Hedley, S. Kim and T. Pauly. 2001. The CCAMLR-2000 Krill Synoptic ... million tonnes. It was shown that the removal of biomass up to a recommended precautionary limit could be ... February 2000 it was observed that krill was present in non-aggregated and scattered forms, as well as in ... patterns of krill aggregations and distribution of krill biomass density were analysed with a view to ... detecting potential fishing grounds where the recommended precautionary catch limit could be taken. Such ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Author(s): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky
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Commercial krill fisheries in the Antarctic, 1973 to 1988
to August). Trends in the fishery with respect to independent estimates of krill abundance and minke whale ... (April to August). Trends in the fishery with respect to independent estimates of krill abundance ... where fishing is predominantly confined to the winter months (April to August). Trends in the fishery ... ; a split-year being the twelve month period from 1 July in one year to 30 June in the next. The catch year ... the whole year round, the highest catch levels occur between April and August (Le. in late autumn through ... and Division 58.4.1 are comparable, suggesting some similarity in the type of fishing operation being ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 229–281 : Author(s): Miller, D.G.M.
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?
a very doubtful procedure and use of a discriminant function to determine sex is recommended as being ... to determine sex is recommended as being most practically robust. ... of a discriminant function to determine sex is recommended as being most practically robust. Resume Chez les ... ~bl Me)l{,lIY HCTHHHOH cpe,llHeH BeJIHqHHOH napaMeTpa KaKOrO-JIH60 nOJIa H Ha6JIIO,lIaeMOH Cpe,llHeH ... ~HIO, ypoBeHb TOqHOCTH KOTOPOH CBblme 80%. PaCCMaTpHBaeTC5I B03MO)l{HOCTb 06be,llHHeHH5I Bcex ... ,lIeJIaIOT 06be,llHHeHHe ,lIaHHbIX BeCbMa cOMHHTeJIbHOH npo~e,llypoH. PeKOMeH,lIyeTC5I HCnOJIb30BaTb ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Author(s): Agnew, D.J.
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An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data
being reached or exceeded before the conclusion of the season (SC-CAMLR, 2006c). In 2006, the CCAMLR ... 4 - 67 1 - 8 43 5 McKinlay et al. 64 Catch composition data suggest that the mix ... by-catch species are unlikely to be resolved with the types of data currently being col- lected. Although ... analyses in other exploratory toothfish fisheries should be investigated, as this study indicates that ... depletion analysis of stratified catch and effort data indicate that there is strong evidence for depletion ... result, coupled with high estimated levels of illegal, unreported and unregulated (IUU) fishing, and ... evidence of poor recent recruitment, indicates that the stock is likely to have been overfished. Several ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 55–78 : Author(s): McKinlay, J.P., D.C. Welsford, A.J. Constable and G.B. Nowara
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Results of fish stock assessment survey, South Georgia, December 1987 - January 1988
1970039;s. A survey to monitor these stocks was carried out from December 1987 to January 1988 ... longueurs, Patagonothen brevicauda guntheri. 3arOJIOBKFI K TaOJIFIl.{aM OI1.eHKH Cpe,llHeti Be ... r. - 51HBapb 1988 r. CpaBHeHHe OI1.eHOK cpe,llHeti BeJIHqHHhl 6HoMacchl npOMhlCJIOBoti qaCTH 3anaca, cpe ... . (a) Pacnpe,lleJIeHHe BeJIHqHH YJIOBa 3a O,llHO TpaJIeHHe, ChampsocephaJus gunnari. PaCCT05lHHe Me)l{,lIY ... KOHTypaMH paBHo 50 Kr (,lIHana30H 0-350). ( b) Pacnpe,lleJIeHHe BeJIHqHH YJIOBa 3a O,llHO TpaJIeHHe ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Author(s): McKenna, Jr., J.E. and S.B. Saila
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Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea
c Committee and the Commission (SC-CAMLR, 2001; CCAMLR, 2001), and a workshop was convened under the aus ... ., 1999; Boyd and Murray, 2001). While it may be preferable to index krill biomass and/or hydrographic ... Orkney Islands and the South Shetland Islands were set as being equal to the densities estimated ... was set as being equal to the estimated density for the Antarctic Peninsula stratum, and krill biomass ... increase, a trade-off may be drawn between options that displace the fishery from its current operating ... that considerable refi nement of these estimates is possible. Qualitative conclusions are that: under ... the fi rst two options a substantial portion (>65%) of the catch limit would be allocated to three ... ) and (iv) a similar portion of the catch limit would be directed to pelagic SSMUs beyond the foraging ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Author(s): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins
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Calibration of an acoustic echo-integration system in a deep tank, with system gain comparisons over standard sphere material, water temperature and time
°C. A second pump was used to vertically circulate the tank water, keeping it well mixed so that temperature ... . Therefore, if no data were collected exactly on axis, the nearest data to the axis were used after being ... , respectively, all else being equal. Therefore, while using a currently accepted procedure for calibrating ... Paper Title: Calibration of an acoustic echo-integration system in a deep tank, with system gain ... outlines the theory and procedures for calibrating an echo integration acoustic system with a standard ... sphere. It presents the results of an extensive calibration of a Simrad EK500 scientific echosounder with ... with the Cu sphere are, with the exception of the long pulse length, lower than those from the WC ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 127–144 : Author(s): Demer, D.A. and R.P. Hewitt
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The foraging range of Adélie penguins – implications for CEMP and interactions with the krill fishery
are being monitored at a number of sites around Antarctica, a spatial overlap between the foraging areas ... Paper Title: The foraging range of Adélie penguins – implications for CEMP and interactions with ... feeding chicks regularly travelled up to 120 km offshore to the continental shelf and returned with krill ... , Euphausia superba. Locations of penguins on foraging trips were compared with historical records of fine ... -scale krill catch data for the regions of interest. The potential for overlap with krill fishing occurs ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 75–87 : Author(s): Kerry, K.R., J.R. Clarke, S. Eberhard, H. Gardner, R.M. Lawless, S. Corsolini, S. Focardi, E. Franchi, D. Rodary and R. Thomson
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Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)
of the larger areas) being open to fishing. This paper reviews the results of this experiment and explores ... them being at about 90°E. The western stock may be centred around Prydz Bay, and appears to be of very ... areas) being open to fishing. This paper reviews the results of this experiment and explores several ... in the area, one in Division 58.4.1 and one in Division 58.4.2, with the division between them being at about ... of 10° longitude divisions of the larger areas) being open to fishing. This paper reviews the results ... , with the division between them being at about 90°E. The western stock may be centred around Prydz Bay, and appears ... to local depletion of toothfish in an area, with animals only being replaced by immigration over ... . If m < 0, then the biomass for the local area being fished (BLOC) is given by: ˆ LOC c B = m - (4) Using an estimate ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Author(s): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán