Search results
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Status of the FIBEX acoustic data from the West Atlantic
. As it is now more than 12 years since the FIBEX data were collected and more than nine years since the Post ... presented in WG-Krill-92/20 was updated before publication in Selected Scientific Papers, 1992 (SC-CAMLR ... activity in recent years (Everson and Goss, 1991). Vessel/Stratum Walther Herwig Dr Eduardo ... . ACKNOWLEDGEMENTS We are extremely grateful to all the nations and individuals who have provided FIBEX data ... : Data from the FIBEX acoustic survey in the West Atlantic sector have been re-examined to check the ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 35–48 : Author(s): Trathan, P.N. and I. Everson
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Age and growth of Antarctic euphausiacea (crustacea) under natural conditions
Peninsula and the south-eastern Weddell Sea. Life spans range from two years for Euphausia frigida to six ... years for the krill Euphausia superba. Growth in length and weight was calculated by non-linear ... for the species Euphausia triacantha, and a three-year life span proposed. Male Euphausia crystallorophias have ... and the south-eastern Weddell Sea. Life spans range from two years for Euphausia frigida to six years ... 3TOi TOQKH 3peHHH. SbIn 3aHOBO npoaHanH3HpoBaH ce30HHbli POCT AnH BHAa Euphausia triacantha ... and the south-eastern Weddell Sea. Life spans range from two years for Euphausia frigida to six years ... triacantha, and a three-year life span proposed. Male Euphausia cr¥stallorophias have a shorter life span ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 369-370 : Author(s): Siegel, V.
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The CCAMLR-2000 Krill Synoptic Survey: a description of the rationale and design
. Full analysis of the results of the CCAMLR-2000 Survey will take several years and will result ... . Full analysis of the results of the CCAMLR-2000 Survey will take several years and will result ... analysis of the results of the CCAMLR-2000 Survey will take several years and will result in a significant ... Eastern Scotia Sea 62'5, 40°W 0" 49"s 62"s 56"W 20°W Antarctic Peninsula 65"S, 50°W 330" 52"s 68"s 79 ... Sea WGS84 Metres 54"30'S 59"30fS 40°W 62"W 0, 0 Antarctic Peninsula WGS84 Metres 59'30's 64'30'5 50 ... 30.00 6.25 4.50 15.75 17.50 South Georgia2 29.25 0.75 6.50 9.25 17.50 South Orkney Islands2 7.75 18.25 ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 1–23 : Author(s): Trathan, P.N., J.L. Watkins, A.W.A. Murray, A.S. Brierley, I. Everson, C. Goss, J. Priddle, K. Reid, P. Ward, R. Hewitt, D. Demer, M. Naganobu, S. Kawaguchi, V. Sushin, S.M. Kasatkina, S. Hedley, S. Kim and T. Pauly
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
scale readings gave a result of one year more. This could arise from the difficulty in differentiating ... in 19 Potter Cove specimens. In some cases scale readings gave a result of one year more. This could ... .4-33.9 32.13 3 31-31.6 31.2 5 30.1-33.2 32 30.4-38 34.2 32.5 + 46 +9 + 20 >-' Ut Ul Table ... 20.5 20 20.2 21.7 21 25.7 25.6 25.8 25.5 25.6 27.1 22.3 29.5 29.1 29.5 29.6 29.5 30.6 23.2 20 ... 16 18 20 22 24 26 28 30 32 34 36 38 TOTAL LENGTH (cm) Figure 3: Distribution of length frequencies ... compared in 19 Potter Cove specimens. In some cases scale readings gave a result of one year more ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Author(s): Barrera-Oro, E.
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Preliminary report on biological observations and exploratory fishing data collected in the South Georgia area during the 1985/86 cruise of MT Carina
was represented by three length groups: 20–24, 32–41 and 42–56 cm. N. gibberifrons was also represented by three ... . P. georgianus was represented by three length groups : 20–24, 32–41 and 42–56 cm ... 45 140 h 30' 178.9 17.9 1273 635 -..J 300 76 191 26 1 44 0\ III 11 55 172 h 20'- 290.0 26.4 1683 ... 0 ___ I I i I I I i i I '/9f£J/86 (XII-!) n-687 2 4 6 8 Age grcups (years) 200 O~~~I~~~I~~~I==~~I==~~ 20 3J 40 50 ... 8 20 30 40 ~ Total length (cm) Length and age frequency distribution of Pseudochaenichthys ... of C. aceratus was 25-72 cm. P. georgianus was represented by three length groups : 20-24, 32-41 and 42-56 cm ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 65-97 : Author(s): Kreft, K. and J. Szynaka
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Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries
and McDonald Islands (Division 58.5.2) in 1992 and 1993. The range of estimated ages was 4 to 25 years ... of estimated ages was 4 to 25 years. There were no significant differences in growth parameters calculated ... whitsoni from the Ross Sea. 0 100 200 300 400 500 600 700 0 5 10 15 20 25 30 Age (years) To ta ... Distal Proximal Dorsal Ventral van Wijk et al. 142 0 5 10 15 20 25 30 -500 -400 -300 ... by the dashed lines. 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 200 250 300 350 400 450 ... end of each bin. 0 5 10 15 20 25 30 200 250 300 350 400 450 500 550 600 650 700 Total length ...
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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Statistical problems in krill stock hydroacoustic assessments
to be not the absolute amount of biomass present in an area, but rather how it is distributed. The issue of patchy years ... to be not the absolute amount of biomass present in an area, but rather how it is distributed. The issue of patchy years ... in an area, but rather how it is distributed. The issue of patchy years vs more even distribution would ... surveys in two consecutive years giving identical biomass for a surveyed area, in one, the biomass ... . If such an individual encounters a patch (a patch dominated year) it can quickly obtain sufficient food for its needs ... of patches in 1984. The shaded area is approximately 20 n miles from Seal Island (the estimated foraging ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 301–309 : Author(s): Macaulay, M.C.
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Potential nursery areas for fish in the Prydz Bay region
. This species was abundant (up to 9 100 were caught in a 30 minute haul) especially near the shelf break ... antarcticum. This species was abundant (up to 9 100 were caught in a 30 minute haul) especially near the shelf ... of P. antarcticum catches. 375 -64 individuals/30 minute trawl 1 5 0 10 0 20 0 Q) "Cl 0 B 30 ... minute trawl 1 5 0 10 0 0 Cl) 20 -d 0 E 000 0 30 0 :.;::l 0 .s 0 00 0 0 0 °0 0 40 0 0 50 ... in a 30 minute haul) especially near the shelf break. The dominant size class was of 45 mm standard ... espece etait abondante (un trait de 30 minutes a capture jusqu'a 9 100 poissons), notamment a proximite ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 369–380 : Author(s): Williams, R.
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Fish distribution and biomass in the Heard Island zone (Division 58.5.2)
, abundance and biology of the most important species, covering a number of years and seasons. Five species ... , but total abundance varied greatly between years. Channichthys rhinoceratus has a similar distribution ... of the most important species, covering a number of years and seasons. Five species were found to be abundant ... greatly between years. Channichthys rhinoceratus has a similar distribution, but abundance is lower ... CCAMLR Science, Vol. 2 (1995): 1-20 FISH DISTRIBUTION ... important species, covering a number of years and seasons. Five species were found to be abundant ... greatly between years. Channichthys rhinoceratus has a similar distribution, but abundance is lower ... . C K ~ T O B ~ I ~ OXBaTblBanll 60nbruy1o nnOqaAb Pi XapaKTepH30BaJIIICb cpen~efi YPiCJleHHOCTbIo B BOQaX MenbYe 300 ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 1–20 : Author(s): Williams, R. and W.K. de la Mare
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Statistical power to detect changes in growth rates of Antarctic fur seal pups
changes (between years) in pup growth rates, the loss of power associated with obtaining weight samples ... years) in pup growth rates, the loss of power associated with obtaining weight samples on only three ... ------- ------- Females ------- mean mean Date n weight (kg) s.d. n weight (kg) s.d. 1988: 2 Jan 30 9.91 1.60 20 8.78 ... + + 15 20 25 CHANGE IN 30 35 40 GROWTH 45 50 RATE Figure 2: If the weighing period is limited ... CURVES: 4 weighing dates 28-day intervals 50 pups/day 15 20 25 30 35 40 45 50 CHANGE IN GROWTH ... Numerical simulations were used to investigate the power of methods for detecting changes (between years ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 399–409 : Author(s): Boveng, P., J.L. Bengtson and M.E. Goebel