Search results
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Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation
. Demer and Conti, 2003): 12 1 1 2 ( ) ( ) e 4 J (2 cos ) d cos pos j pos i bs j r j tilt ... f. 1 · 1 0– 3 1 Fa tn es s fa tn es s 1. 4 4 Fr eq ue nc y f 0 fr eq 0 H z 12 0 · 1 03 ... l-f re qu en cy 3 8 an d 12 0 kH z, T S da ta fr om en ca ge d an im al s M iy ... og ic al sa m pl es a nd vo lu m e ba ck sc at te rin g at 3 8 an d 12 0 kH ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Author(s): Calise, L. and G. Skaret
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Assessments of the stocks of Notothenia rossii marmorata and Champsocephalus gunnari in the South Georgia area
within the 500m depth contour around South Georgia in January/February 1985 of 12,781 tonnes ... stock size of 255,000 tonnes. The estimated current replacement is 1,680 and 12,000 tonnes per annum ... 1985. Document SC-CAMLR-IV/BG/12. 21 pp. Kock, K.H. 1985b. Preliminary results of investigations ... 0.20 1.00 9 0.91 1. 00 0.18 1.00 10 0.74 1.00 0.15 1.00 11 0.42 1. 00 0.0$ 1. 00 12 0.34 1.00 0.07 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 1-21 : Author(s): Cooke, J.G.
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The error of the biomass estimate as a function of survey parameters and the statistics of a density field of krill aggregations
) ft1/ ~ R (hydroacoustic survey) 0'= tft CvlRftfl/S ., (11 ) where t; = V.1fa( , c = £12 ad'. and lJ ... condition: ( 12) Anisotropic fields Up to now we have been discussing isotropio density tields ... :replaced by VR",Rm • For hydroacousi;1c sur- vey (the third variant) we hava instead of (11) and (12 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 213-228 : Author(s): Kizner, Z.I.
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A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery
= …. (12) Here L is the fixed feedback gain (i.e. how much output is fed back to the input, see Figure ... 2) with the property that, if vk = 0 for all k, then Equa- tion 12 solves the problem of minimising the objec- tive ... stability constraints. Automatica, 42 (12): 2169–2174. Cunningham, S. and J.J. Maguire. 2002. Factors ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Author(s): Hill, S.L. and M. Cannon
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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
of females. Relative fecundity ranged from 6 to 12 oocytes (L. Pshenichnov, unpublished data) and was thus ... . Kock et al. 12 Kock, K.-H. and C.D. Jones. 2004. Fish stocks in the southern Scotia Arc region ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 1–20 : Author(s): Kock, K.-H., L. Pshenichnov, C.D. Jones, K. Shust, K.E. Skora and Zh.A. Frolkina
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Size and density of krill layers fished by a Japanese trawler in the waters north of Livingston Island in January 1988
of 17.14 g/m3 (N=30, SO=12.70 g/m3) (Figure 3c). The mean ratio of layer thickness to net height was 0.43 ... . As the net height was 28 m, the layer thickness must be 12 m, which is close to the value obtained from ... on an echogram by a Japanese trawler. ~ w 12 1 10 en ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 339–345 : Author(s): Endo, Y. and Y. Shimadzu
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Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea
1997/98 21.4 5131 –5.047 60.2 2.548 –4.611 1998/99 12.0 5420 –4.747 14.8 2.415 –4.716 1999/2000 12 ... 1 0. 03 86 12 2 0. 03 65 11 6 0. 03 13 99 0. 03 13 10 0 So ut h O rk ne ... A re a (S G P A ) 0. 00 80 25 0. 02 07 66 0. 34 23 10 85 0. 38 27 12 13 ... 0. 38 27 12 13 So ut h G eo rg ia W es t ( SG W ) 0. 03 20 10 1 0. 59 59 18 ...
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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Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning
: 224 pp. CCAMLR. 2011. Schedule of Conservation Meas- ures in Force, 2011/12. CCAMLR, Hobart ... ) Grant et al. 12 Table 3 (continued) Subarea/ division SSRU or other management unit Catch ... occurs 3 4 14 13 14 12 9 2 2 4 7 Total area as % of Convention Area 2.0 2.5 13.7 28.7 31.7 5.6 ... Front; 12 Northern Temperate and 14 Chatham Rise) do not occur within the Convention Area ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Author(s): Grant, S.M., S.L. Hill and P.T. Fretwell
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A simulation study of the method of deriving natural mortality rate using data for Champsocephalus gunnari in Subarea 48.3
weight: Cy = L Wa+.!. y Na,y Sa,y FA 1-e -Za,y) / Za,y 2' (12) (iv) Correlation between fishing ... is estimated from equation (12) with the use of the present value of Cy; (c) fishing effort Ey is deduced ... fishing mortality. ICES CM 1982IG:2, pp. 12. 77 SHLIBANOV, V.I. 1989. Growth and natural mortality ... 167.08 18.20 39.62 207.12 12.42 128.89 3.13 3 428.08 120.92 47.05 34.01 276.94 70.06 14.47 29.09 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 69–83 : Author(s): Gasyukov, P.S. and R.S. Dorovskikh
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Seabird interactions with trawl and longline fisheries for Dissostichus eleginoides and Champsocephalus gunnari
) during the same period with catches taken by a mixture of longlining (12%) and trawling (88%). A trawl ... deployment shows a mean by-catch of 0.28 birds per deployment (0.12 b i rds / l 000 hooks) in November ... fished in the vicinity of Macquarie Island from 1 January to 12 February 1995 with only two short ... on the bottom and covered 12 to 15 miles, essentially along the same track. The vessel did not use a netsonde ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 93–99 : Author(s): Williams, R. and D. Capdeville