Search results
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
approximately 3.5 million km 2 which is divided into four subareas (labelled Subareas 48.1 to 48.4) for ... subareas to monitor krill biomass in survey grids covering between 10 000 and 125 000 km 2. Cautious ... provided data on krill biomass in 2 million km2 of Sub- areas 48.1 to 48.4 in January 2000. (iii ... al., 2002, 2004a). It was conducted in early 2000 and covered an area of about 2 million km2. This ... (Table 2 and Figure 1). These monitoring programs provide valuable information about year-to-year ... Table 2: Summary of local krill monitoring programs in Subareas 48.1 to 48.3. Subarea Organisation ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Author(s): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins
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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
. For 1 < λ < 2 this model is equivalent to assuming a compound Poisson-gamma distribution (i.e ... effort as an offset. For 1 < λ < 2 this model is equivalent to assuming a compound Poisson-gamma ... avec le log compensateur de l’effort de pêche. Pour 1 < λ < 2, ce modèle équivaut à présumer une ... логарифмической функции связи с коррекцией на логарифм усилия. Для 1 < λ < 2 данная модель эквивалентна ... logarítmica compensada por el logaritmo del esfuerzo. Para 1 < λ < 2, el modelo equivale a suponer que la ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Author(s): Candy, S.G
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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
were 3.25 km, 13.3 m and 228.0 g wet weight/m 2, respectively. The krill layers fished by the trawler ... the fishing ground north of Livingston Island in January 1988. 2 . MATERIALS AND METHODS The co ... recorded by an echogram is shown in Figure 2. Note the stratified appearance of the layer. The towed ... 200M 'J,"" 200 Figure 2: A typical krill layer, extending to 2.0 km in length, recorded on an ... echogram by a Japanese trawler. ~ w 12 1 10 en 8 a: w >- <1: -' 6 u... 0 0 4 z 2 0 0 ...
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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Revised estimates of the area of the South Georgia and Shag Rocks shelf (CCAMLR Subarea 48.3)
variety of primary sources including multi-beam swath bathymetry. Sea floor area (km 2 <500 m depth ... resulting grid (Figure 2) is available as an ArcGis shapefile in LLC projec- tion, or as an xyz ASCI file ... from nautical charts (Table 2) from which total sea floor area (<500 m depth) was calculated as 42 ... dataset for South Georgia. Ant. Sci., 21 (2): 171–174. GEBCO. 2003. General Bathymetric Chart of the ... – 35 0 35 0– 40 0 40 0– 45 0 45 0– 50 0 T ot al s 1 53 43 0 0 0 0 0 0 0 0 4 4 8 2 53 42 0 0 1 ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 167–175 : Author(s): Belchier, M. and P. Fretwell
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Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean
52 ± 4% of the total biomass. The mean density of M. carinatus on BANZARE Bank was 176 ± 14 kg/km 2 ... est estimee a 16 658 2 1 325 tonnes. M. carinatus semblait @tre reparti uniformement sur le banc. B ... O M ~ C C ~ cocTasHna 16 658 -c 1 325 T. Pacnpenene~~e M . carinatus no ~ c e 2 6aH~e 6b1no ... typically benthopelagic and are found predominantly along continental slopes between depths of 200 and 2 ... located in the southern Indian Ocean on the border of Divisions 58.4.1 and 58.4.3 (Figure la). At 2 300 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 171–178 : Author(s): van Wijk, E.M., A.J. Constable, R. Williams and T. Lamb
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Long-term monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
one- and two-year-old krill (R 1 and R 2 respectively). Statistically significant fluctuations in ... . Comparaison des rbsultats des classes d'2ge 1 (R,) et 2 (R2). Cette etude confirme egalement, au moyen de ... sampling and/or data handling and if calculation of R, (proportion of recruits for 2-year-old krill) may ... primarily in oceanic regions (Figures 1 and 2). This general picture is also observed in the Elephant ... consists of immature and small adult stages and mostly belong to age group 2+, which therefore shows a ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 19–35 : Author(s): Siegel, V., W. de la Mare and V. Loeb
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Directed research. Antarctic Marine Living Resources (AMLR). A program development plan
by-catch during commercial fishing operations; (2) biological surveys to validate the reliability of ... species taken as by-catch during commercial fishing operations; (2) biological surveys to validate the ... des operations commerciales de peche; (2) des etudes biologiques pour confirmer 'la fiabilite des ... operaciones de pesca comercial; (2) las prospecciones biologicas Nota - 370 - para confirmar la ... rrpOMhlcnOBhIX OnepaItHH; (2) 6HonorHt{eCKHe C'beMKH AnH rroATBep~AeHHH AocToBepHocTH AaHHblx rro ynOBY H ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 363-373 : Author(s): Office of Science and Technology, NMFS, NOAA, US Department of Commerce (USA)
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Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region
divided the Ross Sea region into 189 equal-area (24 000 km 2) cells. The underlying spatial distribution ... summer months, and annual catches have averaged about 2 700 tonnes since 2003. The catch limits for ... captured the ontogenetic move- ment whereby small fish (age 2) recruit to the Ross Sea shelf (shallower ... strata was between 450 and 2 820 m based on GEBCO depth (see also Figure 2c). Population processes ... Within each spatial cell, the number of tooth- fish in the population model aged 2 to 30 was recorded ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Author(s): Mormede, S., A. Dunn, S. Hanchet and S. Parker
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A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
. Standard length and weight were well correlated (r 2 = 0.99). Counts of growth zones in 304 thin-sectioned ... consecutive modes at 8–9, 30–40 and 50–70 mm in December, and assumed they rep- resented the 0+, 1+ and 2 ... groups were considered to represent 0+, 1+ and 2+ year classes. Guglielmo et al. (1998) found length ... the Ross Sea, Antarctica, during February 2008 (O’Driscoll et al., 2011). Figure 2 shows the sample ... measured about 2–3 mm in dia meter. It was therefore necessary to use a micro- scope when extracting ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Author(s): Sutton, C.P. and P.L. Horn
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Foraging behaviour and reproductive success in chinstrap penguins: the effects of transmitter attachment
of this study demonstrate that, for the size of transmitter used (1.4 cm 2 front section area); there ... study extends the study of Croll, Osmek and Bengtson (in press). 2. METHODS A total of approximately ... feathers. The transmitters (Advanced Telemetry Systems, Model 2) were attached to the birds on 28 and 29 ... and Figures 1 and 2. One-way analysis of variance tests performed within each period comparing the ... are shown in Table 2. Significantly fewer chicks survived the study period in both groups in which ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 291–303 : Author(s): Croll, D.A., J.L. Bengtson, P.L. Boveng, M.E. Goebel and J.K. Jansen