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Beyond MSY: a consideration of definitions of management objectives
North Sea plaice for two ages of first capture are shown in Figure 2. Apart from a constant, these ... recruit curve of Figure 2 for a high age at first capture does not reflect the behaviour of the total ... 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 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Автор(ы): 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 outdated method for estimation of krill biomass Atkinson et al. 222 Table 2: Estimates of total ...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 : Автор(ы): 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
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 ... penguins (Level 2) were recaptured at least once during the experiment, yielding a total of 23 samples ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 253–257 : Автор(ы): 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 : Автор(ы): 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 ... peuvent @tre valables a des fins de gestion. De ce fait, il pourrait @tre utile de proceder 2 une ... . For example, in 1994 two vessels from Japan left on the same day (vessels 2 and 3). Within their ... short distance (Figure 2). In 1994 the fishery was restricted to a submarine bank north of Cape ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Автор(ы): 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 ... 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 ... 4; few thorns (11%) were scored as having a readability of 1 or 2. The fi nal sample size of aged ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 183–194 : Автор(ы): 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 ... Cruise 19 Oct 95 - 07 Mar 96 380 - 540 179 No. 1 0 2 143 1 0 1 22 193 0 2 22 ... 343 Experimental Deep-sea Fishing Cruise 17 Feb 96 - 30 Apr 96 300 - 1 700 % 0 0 0.01 ... (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 : Автор(ы): 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 : Автор(ы): 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 ... 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 ... day. In addition, the light intensity at the same depth was recorded at 2-minute intervals. 5. DATA ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Автор(ы): 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
(Figure 2) the maps highlight the areas noted by Ichii et al. (1994), while around the South Orkney ... 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 ... 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 : Автор(ы): Murphy, E.J., P.N. Trathan, I. Everson, G. Parkes and F.H.J. Daunt
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