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From the Editor
an SDWBA model in conjunction with the Jolly and Hampton analysis approach. This approach pro- vides ... - publication critique of papers that it has published. Such critique is an essential part of the scientific ... process and acknowledges that, despite the best efforts of the peer-review process (and those ... of the editorial staff), published work may contain errors, alternative interpretations may not be adequately ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 199
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Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from 1994 to 1997, Dr Eduardo L. Holmberg surveys
and Thysanoessa sp., which are known to be important alternative food in years of krill scarcity, as well as fish ... , was only occasional or negligible and varied from year to year. The spatial distribution of the main prey ... 48.3, did not show a consistent pattern from year to year. Likewise, in the four surveys by the Dr ... in Subarea 48.3 during the period investigated can be defined as low in 1994 (equivalent to years of krill ... with material from the 1994 and 1995 surveys, correspond to age groups 1 to 3 years (Barrera-Oro et al., 1994 ... reviewed the paper. REFERENCES Barrera-Oro, E., E. Marschoff and R. Casaux. 1994. Age/length key ... -94/11. CCAMLR, Hobart, Australia: 10 pp. Barrera-Oro, E., E. Marschoff and R. Casaux. 1995. Age ... , 1995). In 1996 and 1997 fish between 16 and 20 cm predominated; in 1997 a peak between 25 and 30 cm ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Author(s): Barrera-Oro, E., R. Casaux and E. Marschoff
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Experimental evaluation of the effectiveness of weighting regimes in reducing seabird by-catch in the longline toothfish fishery around South Georgia
0 4 6 8 2 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 2 0 1 0 1 0 0 0 at Start of Setting DIM PRO 32 34 47 18 45 50 45 30 47 21 42 29 42 70 39 48 42 3 8 40 10 ... IIpllJlOB MOPCKMX IlTMq, HaAO MCIIOnb30BaTb PeXIIM s a ~ o n n e ~ ~ x xpyca He MeHee 8.5 ... ~ @ @ ~ K T H B H I , I ~ ~ p e m m 3 a ~ o n n e ~ ~ x . I I o ~ ~ e p ~ a e a e ~ c x BarnHocTb XOpOIIIerO IInaHMpOBaHHX An2 3KCIIepMMeHTOB TaKOT.0 Tkina, T.K. XOTII B CaMOM 3KCIIepMMeHTe ... measure (6 kg at 20 m intervals) was derived from a study of bird strikes in relation to weight size ... for toothfish (Dissostichus spp.). Three regimes were examined, with weights of 4.25, 8.5 and 12.75 kg ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 119–131 : Author(s): Agnew, D.J., A.D. Black, J.P. Croxall and G.B. Parkes
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Commercial fishing vessels as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel
of krill has varied dramatically over its 30- to 40-year history. The present annual catch ... in resource surveying has been given sub- stantial attention in recent years (ICES, 2007; Abe et al., 2011 ... years, most new research vessels, and also some fishing vessels, are being equipped with an instrument ... freezers (~ –80°C), will also need to be considered. Adequate working space for data analysis is essen ... readily available for conventional coverage of harvested stocks and their ecosystems. This paper describes ... fishing and research vessel could make a large amount of important data available for both management ... , through CCAMLR, and the broader scientific community and thus improve the basis for resource evaluation ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 11–17 : Author(s): Godø, O.R., C. Reiss, V. Siegel, J.L. Watkins
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
aimed at providing two indirect methods of assessment of depredated biomass over an 11-year period (2003 ... of depredated biomass over an 11-year period (2003 to 2013), accounting for spatial variations of depredation ... biomass over an 11-year period (2003 to 2013), accounting for spatial variations of depredation levels ... years. This is the case for many demersal longline fisheries at high latitudes on both hemispheres ... fishery operates year-round, but within the Crozet Islands EEZ, 35% of fishing activity occurs ... 568 511 1 679 ± 74 j,k,l 39.2 ± 2.7 105 26 30 683 633 2 568 ± 82 , , ,i j k llanded ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Author(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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Acoustic estimates of krill density at South Georgia, 1981 to 1998
from year to year over that time, ranging from ≈ 2 to ≈ 150 g m-2 (fresh mass). The 1982, 1991 ... year to year over that time, ranging from ≈2 to ≈150 g m-2(fresh mass). The 1982, 1991 ... in the east. Brierley et al. a density, general dens~ty, west dens~ty, east mean all years ,90 ... Georgia. CONCLUSION Acoustic surveys at South Georgia over the past 20 years suggest that krill ... widely from year to year over that time, ranging from =2 to =l50 g m-2 (fresh mass). The 1982, 1991 ... M ~ c c ~ ) . A~c~paJIb~b1e JIeTHMe IIepHOAbl 1982, 1991 M 1994 rr . XapaKTepH30BanHCb O C ~ ~ ~ H H O HM3KHMH ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 47–57 : Author(s): Brierley, A.S., J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson
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Attribtuion of acoustic echoes to squid in the south Atlantic
100 02:25 130 01:45 80 00:30 20 01:55 150 01:30 60 00:45 20 02:OO 70 - 100 02 ... patches. The fourth daytime haul was towed at 130 m, 80 m and 20 m, but all of these sections ... -32.3" -42.4 -30.0" -51.35 -54.60 -45.66 -46.53 -48.04 -47.62 -41" -53.20 -40.70 -69.5 ... @ ~ o H T ~ ~ ~ H o R 30He no~pai ioaa AHTKOMa 48.3, 3a OAHO TpaneHIle ~ ~ ~ H O ~ J I Y ~ I I H H ~ I M TpaJIOM 6brno ... order to characterise an acoustic signature that may be used to identify this species of squid ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 259–271 : Author(s): Goss, C., P. Rodhouse, J.L. Watkins and A.S. Brierley
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On the presence of Paralomis spinosissima and Paralomis formosa in catches taken during the Spanish survey Antártida 8611
of the 29 made around Shag Rocks and in 20 of the 104 hauls made at South Georgia. P. formosa was caught ... . P. spinosissima was caught in seven hauls of the 29 made around Shag Rocks and in 20 of the 104 hauls made ... to 90% mud, 25 to 30% sand and the remainder gravel. However, the presence of certain species ... in seven hauls of the 29 made around Shag Rocks and in 20 of the 104 hauls made at South Georgia ... ). La premiPre espPce etait presente dans sept des 29 traits effectues autour des ilots Shag et dans 20 ... ~e WXHOW T e o p r ~ a - B 20. BMA P. formosa 0 6 n a s n ~ s a n c r l AeamAbI- no O A R H O M Y pa3y ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 165–173 : Author(s): López Abellán, L.J. and E. Balguerías
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Modelling variability and estimating power to detect change in Adélie penguin fledgling weights
. The statistical models were developed from first principles and incorporated both within- and between-year ... or decrease after an impact. Fledgling weight was found to decline through the fledging period each year ... , but there was no evidence that the rate of decline differed between years. A consequence of this finding is that it may ... be possible to simplify future monitoring, such that fledgling weight is measured at a single time each year ... . Are age-related variations in breeding perform- ance greatest when food availability is limited? J. Zool ... 3 years 4 years 5 years b) 50 birds % change 0 4 8 12 16 20 0.0 0.2 0.4 0.6 0.8 1.0 c) 30 birds ... each year (30, 50 and 100), duration of post-impact monitoring (3, 4 and 5 years), and percentage ... and the limited gain from weighing more than 30 birds each year. This is the case for both one- and two-tailed ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 191–200 : Author(s): Emmerson, L.M., C. Southwell and J. Clarke
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Catch per unit effort and proportional recruitment indices from Japanese krill fishery data in Subarea 48.1
is the number of animals in age class i, and n is the age of the oldest age class in the stock (de la Mare ... /89. From 1989/90 to 1991/92, almost no age 2+ components were identified. In 1992/93 and 1993/94 ... ). Proportional recruits (R2) were calculated based on numbers of age 2+ krill identified by MIX analysis. R2 ... is the ratio of numbers of age 2+ krill to numbers of age 2+ and older krill combined. That is: where Ai ... period. The use of different fishing strategies in response to a demand for higher product quality and a ... general decrease in krill density in the study area were considered as possible reasons for this. On the ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 47–63 : Author(s): Kawaguchi, S., T. Ichii and M. Naganobu