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Assessing the power to detect systematic change in Adélie penguin foraging trip duration
or trips sampled diminished rapidly when sample sizes were greater than 30 penguins and three trips per ... penguin. Statistics were developed to test for three forms of change (step, trend and ramp). A test ... or trips sampled diminished rapidly when sample sizes were greater than 30 penguins and three trips per ... penguin. Statistics were developed to test for three forms of change (step, trend and ramp). A test ... the number of penguins or trips sampled diminished rapidly when sample sizes were greater than 30 penguins ... and three trips per penguin. Statistics were developed to test for three forms of change (step, trend ... échantillonnés a diminué rapidement lorsque la taille des échantillons était supérieure à 30 individus et trois ... sorties par manchot. Des statistiques ont été mises au point pour tester trois formes de changement ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Author(s): Southwell, C., J. Clarke and L.M. Emmerson
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
Champsocephalus gunnari B IIo~paHoHe 48.3 C MCnOJIb30BaHMeM VPA, 6bIJIM npe~npMHSlTbI nonbITKM ycoBepmeHcTBoBaTb ... r. (o~HOJIeTHHe OC06H B 1988 r.), 6bIJIa ~OBOJIbHO YCToH4MBa HeCMOTpSl Ha TO, 4TO npM HaCTpOHKe MCnOJIb30 ... levels based on fishing mortality Fo.1 were proposed under the assumption that these fish would form ... ., equation (1», however, the Laurec-Shepherd tuned VPA provides estimates of predicted qa from the series ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Author(s): Parkes, G.
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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
convert a series of detections of illegal fi shing effort into an estimation of the amount of illegal fi ... it occurs in the time series and the pattern of fi shery patrols. Because it does not explicitly give ... – Ej (9) This follows the same form as the calculated Dj except that here, Lj is the randomly ... every 30 days and lasting for 16 days. All dates are given in number of days from some arbitrary ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Author(s): Ball, I
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Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle
–300 and 301–500 m. The duration of each trawl was 30 min at a speed of 3–3.5 knots. For reference ... specimens of young fi sh were recorded (Trunov et al., 2000). Young fi sh of 9–15 cm formed dense ... at depths of 100–150 m (RV Evrika, 1988). In winter, catches of more than 100 individuals per 30 min ... s E as t N or th So ut h W es t E vr ik a M ea n le ng th (m m ) 62 58 61 55 30 / 3– 7/ 4/ 19 88 ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Author(s): Frolkina, Zh.A
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Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988
, analysis and interpretation of data, and preparation of scientific papers. This was the second of a series ... to bongo-net hauls (reduced speed from 6-8 knots to 3 knots for 45 min) spaced approximately every 30 ... September 1984. BIOMASS Report Series No. 40: 106 pp. 361 APPENDIX CALCULATION OF TARGET STRENGTH ... following the method described in BIOMASS Report Series No. 40. Mean volume back-scattering is here defined ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 357–377 : Author(s): Macaulay, M.C.
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Growth and natural mortality of Patagonian rockcod (Patagonotothen guntheri shagensis) from Shag Rocks shelf
)!{eJITOnepKl1 (Patagognothen guntheri shagensis) 6bIJIl1 paCClll1TaHbI npl1 l1CnOJIb30BaHl1l1 ,l{aHHbIX ... era BeJIl111l1Ha Bapbl1pOBaJIaCb B ,l{l1ana30He OT 0,63 ,l{O 1,06. B paclleTax l1CnOJIb30BaJIaCb cpe ... . shagensis forms aggregations during the warm season (December to March). The length of fish in catches ... are most abundant. Sexual maturity is attained by fish at 11 to 13 cm length, 20 to 30 g weight and age ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 111–121 : Author(s): Shlibanov, V.I.
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A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels
Science, Vol. 23 (2016): 17–30 17 A post-processing method to remove interference noise from acoustic ... of its surrounding samples. This is done via a series of operators, including ‘data range bitmap2 ... To assess the performance of the method, a series of descriptors of swarm structure, including mean volume ... 3. 30 /3 .8 8/ 4. 88 Pr oc es se d –5 8. 9/ –5 6. 3/ –5 3. 8 23 .9 /3 7. 8/ 10 ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Author(s): Wang, X., J. Zhang and X. Zhao
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Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000
nal ‘visible’ reconstruction from a stacked series of ‘hidden’ reconstructions. The re- construction ... ., 1994). A series of up to seven hidden reconstructions (N scales = 7), each blurred by a further ... nal visible space reconstruction was formed by weight-summing the hidden reconstructions ... , y = 30 km (Figure 1b). Factors contri - buting to the consistent appearance of krill at these ‘hot ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Author(s): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins
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Spawning locations of mackerel icefish at South Georgia
INTRODUCTION Over the past 30 years there has been a fishery, large in some seasons, for mackerel icefish ... was caught on 16 March, five more on the following day, two on 20 March and 14 on 30 March. 011 5 April ... a regular grid of 42 stations spaced at 30 n mile (55 km) intervals was sampled over the Soutl-t Georgia ... ). A further series of hauls was undertaken between 26 December 1986 and 4 January 1987 along transects ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Author(s): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock
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Homogeneity of body length composition of Antarctic krill within the commercial zone
13.275 0.2757 30 m 2 12 11.741 0.4667 31 b 2 9 28.563 0.0008** 32 b 2 12 20.588 0.0567 33 m 2 11 ... 20 Data set 2* 30 40 50 Length (mm) 60 15 10 5 n=182 x=48.7 n=187 x=49.1 n=170 ... 30 40 50 60 Length (mm) Figure 2: Comparisons of kriU length compositions for which significant ... - w.. 5 0 20 30 4D 50 60 Data set 53* Data set 49** ..-.. 15 ~ n=247 n=173 ....... 10 x=39.4 x=41 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 17–28 : Author(s): Ichii, T.