Résultats de la recherche
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Beyond MSY: a consideration of definitions of management objectives
largest stock in the data series, the MNR for plaice being indeterminate but certainly less than 30 ... (Csirke and Sharpe 1984) suggests that MNR for clupeoid species occurs at stock sizes some 30-50% of the ... F that would prevent the spawning biomass per recruit falling below any desired percentage (say 30 ... North Sea plaice for two ages of first capture are shown in Figure 2. Apart from a constant, these ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Auteur(s): Gulland, J.A.
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Fitting Euphausia superba into Southern Ocean food-web models: a review of data sources and their limitations
are the wet mass m–2 (i.e. bio- mass density) and no. m–2 (numerical density). The current paradigm ... 2) sample from the near surface (typically ~10 m depth for acoustics) down to ~200 m and in areas ... estimates for this area (see Table 2). Survey CCAMLR Area (see Figure 1) Area surveyed (million km2 ... outdated method for estimation of krill biomass Atkinson et al. 222 Table 2: Estimates of total ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Auteur(s): A. Atkinson, S. Nicol, S. Kawaguchi, E. Pakhomov, L. Quetin, R. Ross, S. Hill, C. Reiss, V. Siegel, G. Tarling (submitted to the 2008 Joint CCAMLR-IWC Workshop)
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Homogeneity of Adélie penguins as krill samplers
27 31/1/90 39.98 27.10 4 30 09/1/90 42.65 14.75 4 25 19/1/90 32.11 31.78 5 41 18/1/90 40.02 ... depredadores. 1 Instituto Antartico Argentino, Cerrito 1248, 1010 Buenos Aires, Argentina 2 Facultad de ... . Finally, we will test the hypothesis that Ad6lie penguins are uniform with respect to prey selection. 2 ... ). Sources of variation were arranged in a nested ANOV A as follows: Level 2: Level 1: Level 0 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 253–257 : Auteur(s): Marschoff, E. and B. Gonzalez
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Feeding and food intake of Electrona carlsbergi (Tåning, 1932) Myctophidae
aspects of reproduction and feeding of Myctophidae in the Southwest Atlantic. Voprosy ikhtiologii, 30 (2 ... various methods. 2. MAlERIALS AND METHODS Materials for studying feeding of E. carlsbergi were ... the present paper. Recalculation of parameter A (see Table 2) for temperature of E. carlsbergi ... habitat was made by introducing the temperature correction factor (Winberg, 1983). Table 2 contains the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 411–416 : Auteur(s): Gerasimova, O.V.
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Analysis of haul data from the South Georgia krill fishery
CCAMLR Science, Vol. 5 (1998): 9-30 ANALYSIS OF HAUL ... Science, 3: 13-30. Hamner, W.M., P.P. Hamner, S.W. Strand and R.W. Gilmer. 1983. Behaviour of ... Ocean between 15 and 30°E during FIBEX. In: Siegfried, W.R., P.R. Condy, and R.M. Laws (Eds ... peuvent @tre valables a des fins de gestion. De ce fait, il pourrait @tre utile de proceder 2 une ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Auteur(s): Trathan, P.N., I. Everson, E.J. Murphy and G.B. Parkes
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
) reach about 30–35 cm total length at age 2+ (Horn, 2002), compared with A. georgiana which grows to ... than 30 cm) would considerably aid the interpretation of early band formation near the apex of thorns ... analytically by the constant 2, so CV = 1.4142 IAPE. Von Bertalanffy growth curves were fi tted to the data ... determine Pelvic length (cm) 0 20 40 60 80 100 T ho rn le ng th ( m m ) 0 2 4 6 8 10 12 14 ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 183–194 : Auteur(s): Francis, M.P. and C. Ó Maolagáin
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By-catch of fish in longline catches off the Kerguelen Islands (Division 58.5.1) during the 1995/96 season
the Japanese longliner Anyo Mauu No. 22, and covered the whole area from 17 February to 30 April ... 343 Experimental Deep-sea Fishing Cruise 17 Feb 96 - 30 Apr 96 300 - 1 700 % 0 0 0.01 ... Cruise 19 Oct 95 - 07 Mar 96 380 - 540 179 No. 1 0 2 143 1 0 1 22 193 0 2 22 ... (Figure 2), giving a recorded maximum value of 45 fish/hour (i.e. 464 fish recorded per longline set ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 175–193 : Auteur(s): Duhamel, G., P. Pruvost and D. Capdeville
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Distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) from a trawl survey of the South Georgia shelf in June–July 1985
vertical opening was 6 m. The area covered in 30 minutes was 0.004416 square miles. Fishing operations ... -bottom (2-5 m off the sea-bed), mid-Water and near surface. The duration of each haul was 10 minutes at ... 553.2 specimens on the average were found at shallow depths of 100-200 m (Table 2). The accuracy of ... 326-375 376-425 426-475 Table 2 - 62 - Juvenile mackerel icefish catches in relation to depth ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 55-63 : Auteur(s): Boronin, V.A., G.P. Zakharov and V.P. Shopov
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Target strengths of Antarctic krill (Euphausia superba)
SC-CAMLR-VII/BG/30 TARGET STRENGTHS OF ANTARCTIC KRILL ... kHz TS (dB} at 120 kHz Event Mean no. - no. 1 7 1 9 20 26 28 30 36 37 43 47 50 52 54 ... explanation. 2. EXPERIMENTAL DESIGN Earlier studies on the target strength of euphausiids and other small ... occasion. The krill were kept in a cluster of four holding pens. Each was cylindrical in form, with 2 m ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Auteur(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote
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Krill fishing in the Scotia Sea in relation to bathymetry, including the detailed distribution around South Georgia
restricted area of about 30 x 20 km. There were also a few isolated hauls made outside this area. During ... . 1996. Environment-krill relations in the South Georgia marine ecosystem. CCAMLR Science, 3: 13-30 ... (Figure 2) the maps highlight the areas noted by Ichii et al. (1994), while around the South Orkney ... oceanographic relationships in the Southern Ocean. GIS Europe, 2 (6): 34-36. Trathan, P.N., J.P. Croxall and ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 1–17 : Auteur(s): Murphy, E.J., P.N. Trathan, I. Everson, G. Parkes and F.H.J. Daunt