Resultados de la búsqueda
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Assessing the power to detect systematic change in Adélie penguin foraging trip duration
impact and thereafter remains constant (step change), (ii) the effect size is reached after 10 years of ... scenarios, analyses were undertaken for a varying number of years of post-impact monitoring (1–10, 15, 20 ... would take 10–15 years to detect a change with probability >0.80 for the crèche and guard stages ... accept a Type I error rate of 0.20 and monitor for up to 10–15 years after the impact to detect a ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Autor(es): Southwell, C., J. Clarke and L.M. Emmerson
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Length-at-age in juvenile Patagonian toothfish (Dissostichus eleginoides)
. 9 (2002): 1–10 LENGTH-AT-AGE IN JUVENILE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) J ... 1+ 32.5 0.17 121 2+ 41.3 0.38 113 3+ 55.0 1.39 26 4+ 61.3 1.21 10 Table 2: Age–length key for ... Total 6 121 113 26 10 2 1 1 Prop. 0.021 0.432 0.404 0.093 0.036 0.007 - - - 0.0035 - - - 0.0035 Table 3 ... year’s translucent zone). Total length (cm) 10 20 30 40 ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 1–10 : Autor(es): Ashford, J., C. Jones, S. Bobko and I. Everson
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Results of fish stock assessment survey, South Georgia, December 1987 - January 1988
striking. By 1985 the stock was estimated to be less than 10% of its pristine size (Kock 1985). The ... between 19 December 1987 and 10 January 1988. The sampling was based on a stratified random survey design ... 10% of this value (Kock 1985). It has continued to drop even at this low population level. The ... half the size of the 1986/87 population and the mean length has dropped by over 10 cm. The decreasing ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Autor(es): McKenna, Jr., J.E. and S.B. Saila
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Detection and quantitative estimation of krill concentrations by hydroacoustic instruments
following formula : max r max 10 0.2 Sr p • max = ·y·a ac J max where P ac acoustic power, Wt ... of echo signals the same as aboard the Odissey (Jmin = 10 -10 Wt/m2 with the speed of the vessel 8 ... -10 knots and the roughness of the sea up to force 4)], we can calculate -6 2 long (0= 5 . 10 m ... ). the range of detection of an individual krill 4.5 cm 4) By substituting P = 4500 Wt, y = 2500, -10 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Autor(es): Yudanov, K.I.
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
krill abundance had increased to the normal level. File: 07-Ichii-et-al.pdf ... estas profundidades. Como es 10 usual, las concentraciones de krill mas importantes se encontraron en ... this region with the yearly catches of 10 000 to 70 000 tonnes for the past eight years. This region ... levels (0, 10, 20, 30, 40, 50, 75, 100, 125, 150 and 200 m). Chl-a concentration was determined by ... horizontal integration intervals of 1 n mile and the depth range from 10 to 200 m or to the bottom if ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Autor(es): Ichii, T., H. Ishii and M. Naganobu
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Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny icefish (Chaenodraco wilsoni), at the tip of the Antarctic Peninsula – revisited
1989. Fisheries information from the area was con- fi ned to catches of 10 130 and 4 320 tonnes of ... adult females caught (n = 10) suggested that C. rastrospinosus was in the middle of the spawning ... shown in Figures 10 and 11. Males were more advanced in gonad development than females. The GSI ... A. skottsbergi 10 15.0 247 27.4 2.7 1 P. macropterus 33 11.0 2233 7.1 2.9 1 Table 3: Length ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 1–20 : Autor(es): Kock, K.-H., L. Pshenichnov, C.D. Jones, K. Shust, K.E. Skora and Zh.A. Frolkina
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Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects
’/10 000) and only hauls which had a reliability score for TowDistance of 1 or 2 were used in the ... - ability are greater for the trawl data. Figure 10 shows normal quantile–quantile plots for estimated ... most extreme SxY_re esti- mate in Figure 10(b) and 12 of –0.844 corresponds in Figure 9 to year 2001 ... in Stratum 2). Figures 10 and 11 show that for both sets of estimated random effects their ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Autor(es): Candy, S.G
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Geographical differences in the condition, reproductive development, sex ratio and length distribution of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Subarea 88.1)
gonad weight using motion-compensated scales (accuracy ±10 g). These measurements were made to provide ... to those sets where at least 10 fish were sampled, to reduce any bias caused by low sam- ple numbers ... the Ross Sea 95 -9 9 10 5-10 9 115 -119 12 5-12 9 13 5-13 9 14 5-14 9 15 5-15 9 16 5-16 ... 400 0 1600 1200 800 400 0 75 –7 9 85 –8 9 95 –9 9 10 5– 10 9 11 5– 11 9 12 5– 12 9 ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 27–45 : Autor(es): Fenaughty, J.M
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
were continuously integrated at intervals of 0.5 n mile for the depth range of 10 to 150 m or 10 m to ... preserved in a 10% buffered formalin-seawater solution for later examination in the laboratory ashore. 150 ... 91m2 (10-150m depth) o ~ 500 o 250 o 125 o 50 10 1 ......... .... ~ 3000 m ... ° I···· I (- / /. ft Krill 91m2 1 i -® (10-150m depth) o ~ 500 o 250 o 125 o 50 10 1 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 273–285 : Autor(es): Ichii, T., H. Ishii, J.L. Bengtson, P. Boveng, J.K. Jansen and M. Naganobu
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Acoustic data analysis and models of krill spatial distribution
swarms of volume 1-10 m3 may be quite common (Mauchline 1980). Recently Weber et a\. (1986) have used ... ; Oenman 1976). There is a relatively high variability of krill biomass at small scales less than 10 km ... normally much smaller, probably in the range of 0.1-10 km. Average densities of krill in a shoal is 1-100 ... areal sizes of 103-104 m2 can occur, but spherical or 315 laminar sizes of 1-10 m3 may be quite ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 311–329 : Autor(es): Morin, A., A. Okubo and K. Kawasaki