Search results
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Significant conservation benefits obtained from the use of a new fishing gear in the Chilean Patagonian toothfish fishery
= 0,00 0,20 0,40 0,60 0,80 1,00 1,20 1,40 0 50 100 150 200 250 BBA abundance around vessels ... ., 2003; Kock et al., 2006), with depredation levels of almost 100% recorded on some lines (Secchi ... ‘Net sleeve’ Ø~2–3 cm Ø~70–74 cm Ø~30 cm Ø~10–15 cm ~100–120 cm Hooks Snoods ~20 cm ~15 cm ... (dr) is: * 100 nd dr nd nt = + where nd is the number of damaged fish, ascer- tained ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 79–91 : Author(s): Moreno, C.A., R. Castro, L.J. Mújica and P. Reyes
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Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data
0 () -0 ~ ~ ..0 E ::I Z '"C ~ Cii 20 E 't:i w o 100 200 300 400 500 Area of Sector (sq. nmi) Figure 17: Estimated number ... perYJI5IpHO co6HpalOTc5I nOHCKOBbIMH cY,llaMH, MorYT 6bITb HCnOJIb30BaHbI ,llJI5I Ol.(eHKH KOJIHl-leCTBa ... (spatial scale 100 m) which then aggregate into concentrations of krill (spatial scale 10 nm) in a large ... time); coefficients of variation range between 50% and 100%. The distributional model used ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Author(s): Mangel, M.
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Comparative feeding ecology of Patagonian toothfish (Dissostichus eleginoides) in the southwestern Atlantic
(September-December), at depths of 100 to 200 m. Adult D. eleginoides feed on fish, macro-crustaceans ... "s. The highest concentration found ( > l tonne/n mile2) was between 53" and 55"s in depths greater than 200 ... m, with catches being more frequent at depths of 150 to 200 m. The same study also found that fish commonly ... m. In this zone, 74.4% of the longline sets in which D. eleginoides were caught were set between 1 100 and 1 290 ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 105–124 : Author(s): García de la Rosa, S.B., F. Sánchez and D. Figueroa
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Fish stock assessment survey in Subarea 48.3
"'P" --~:~~: ................................ . Catch Rates (kg/30 mins) o o et 11 et • 0.1-9.9 10-99.9 100-199.9 200-499.9 500 ... ) 0 0.1-9.9 0 10-99.9 • 100-199.9 III 200-499.9 0 500-1999.9 •. > 2000 42 " , , , 12 11 ... mins) o 0.1-9.9 o et 11 et 10-99.9 100-199.9 200-499.9 500-1999.9 > 2000 ... /30 mins) 0 0.1-9.9 55 ---i 0 10-99.9 • 100-199.9 iI 200-499.9 e 500-1999.9 A > 2000 56 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 25–67 : Author(s): Everson, I., G. Parkes, K.-H. Kock, S. Campbell, Z. Cielniaszek and J. Szlakowski
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Biology and harvesting of Dissostichus eleginoides around the Kerguelen Islands (Division 58.5.1)
:. .............. \i,f····· ........................................................................................................... j J ,~l~,(.~r \:';.~~'"'I' I sector o 50 100 150 200 Lt (2 eIn interval) ~ Trawler Longliner Figure 3: Distributions de ... 100 cm sont ainsi ages d'environ 11 ans et les individus de 160 cm depassent une lecture de 17 ans ... , ce qui permet d'imaginer l'age respectable que peuvent atteindre des specimens de plus de 200 cm ... . Les groupes de taille les plus frequemment observes dans les captures au chalut (30-60 a 50-100 cm ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 85–106 : Author(s): Duhamel, G.
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Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries
-200 -100 0 100 200 300 400 500 Birthday (Julian days) Fr eq ue nc y Figure 2: Frequency of fi sh ... whitsoni from the Ross Sea. 0 100 200 300 400 500 600 700 0 5 10 15 20 25 30 Age (years) To ta ... Subarea 48.3. 0 100 200 300 400 500 600 700 0 0.05 0.1 0.15 0.2 0.25 0.3 Otolith weight ... 3 3.5 4 4.5 5 200 300 400 500 600 700 800 900 1000 Total length (mm) W ei gh t ( kg ) Macquarie ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Author(s): van Wijk, E.M., R. Williams and A.J. Constable
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Results of a longline survey on seamounts in the southeast Atlantic and in Subarea 48.6 and Division 58.4.4
one set was made between 700 and 1 200 m on the abrupt slope of the Bouvet Island area. Ob and Lena ... -frequency Distributions by Depth Statistical analysis of the length distributions per 100 m depth strata ... : 200-300 m, 300-600 m, 600-800 m, 800-1 500 m and 1 500-1 900 m. Although this stratification ... Banks of young individuals that inhabited depths between 200 and 600 m. We concluded that the presence ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 99–116 : Author(s): López Abellán, L.J. and J.F. González Jiménez
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Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01
a Simrad EK500 scien- tifi c echosounder operating hull-mounted 38, 120 and 200 kHz transducers ... have to be surveyed in a 100 km survey area in order to attain stability in sampling variance (see ... of the eastern box was moved westwards by 16.66 km (reducing the box width from 100 km to 83.33 km ... fur seals were believed to forage, by transposing the central box 105 km south and 100 km west ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Author(s): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst
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Midwater trawl catchability in relation to krill and possible ways of assessing gross catch
()()() m, a vertical extent of 200 m and a concentration of 23.25 11m3, was chosen for the analysis. The mean length ... . Krill filters just as freely through broad-meshed netting (mesh bar 1 200 to 400 mm) as it does through ... cbIpeBbIe pecypcbI IQ)I{HOrO OKeaHa 1-1 np06JIeMbl I-IX pal.\I-IOHaJIbHOrO I-ICnOJIb30BaHI-ISI. KepQb: 89 ... (metres) 9.8 11.0 17 Horizontal opening between trawl boards (metres) 100 60 70 Horizontal opening ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Author(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov
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Measurements of differences in the target strength of Antarctic krill (Euphausia superba) swarms at 38 kHz and 120 kHz
commonly been conducted at echosounder frequencies of between 50 and 200 kHz, with 120 kHz being probably ... integrated off-line. Integrations were restricted to the upper 100 m, the maximum range of the EKS-120 ... , using measurements of receiver gain corresponding to 5-m depth channels between 5 and 100 m. For each ... in the two integrator systems. One integration was done between 5 and 100 m over an interval in which ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 75–86 : Author(s): Hampton, I.