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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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Fishery Report 2018: Champsocephalus gunnari Heard Island (Division 58.5.2)
6. Length frequencies for C. gunnari from the last 10 years are presented in Figure 1. These length ... - 0* 0 2013 1 679 591 2014 1 1267 1123 2015 2 309 10 2016 1 482 463 2017 1 561 528 2018 1 526 ... -per-unit-effort are shown in Figure 2. 4 Parameter estimates Fixed parameters 10. The ... used in the 2018 Champsocephalus gunnari assessment. Points are locations of hauls, with 10 stations ...
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Fishery Report: Dissostichus eleginoides (TOP) Kerguelen Islands (Division 58.5.1)
management advice ............................................. 10 7.1 Conservation measures ... ............................................................ 10 7.2 Management advice ................................................................ 11 ... . (Source: STATLANT data for past seasons, fine-scale data for current season are incomplete, WG-FSA-11/10 ... , resulting in a high level of total removals (>10 000 tonnes per season). There has been a sharp decline in ...
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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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Fishery Report 2017: Champsocephalus gunnari Heard Island (Division 58.5.2)
McDonald Islands are shown in Figure 2. 4 Parameter estimates Fixed parameters 10. The ... used in the 2017 Champsocephalus gunnari assessment. Points are locations of hauls, with 10 stations ... Length-to-weight ‘a’ 9.157 × 10-10 kg/mm Length-to-weight ‘b’ 3.316 5 Standing stock 12 ... -10/12, Appendix 1), using data from the 2017 survey. The estimates of the mean and one-sided lower ...
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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