Search results
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Potential nursery areas for fish in the Prydz Bay region
fish were caught in the top 50 m over the shelf, and more than 95% were Pleuragramma antarcticum ... . Nearly all juvenile fish were caught in the top 50 m over the shelf, and more than 95% were Pleuragramma ... ......, ~ - Q) C) - ~ Q) 10 ~ - ~ - -51- - o I-r-----I I I I I o 20 40 60 BO 100 Standard length (mm) Figure ... FREQUENCY 15 10 5 o h-----' o 20 'la 60 Ba lOO 120 standard length (mm) Figure 7: Length ... WG-FSA-9l/35 POTENTIAL NURSERY AREAS FOR FISH ... for nototheniid and channichthyid fish. Nearly all juvenile fish were caught in the top 50 m over the shelf ...
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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Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea
density at South Georgia. y = 0.6958Ln(x) - 2.2483 R2 = 0.317 -3 -2 -1 0 1 2 3 0 20 40 60 80 100 ... -3 -2 -1 0 1 2 3 0 20 40 60 80 100 Krill biomass density (g m-2) C 1 st ab d ra d d ev ia te Krill biomass ... Shetland Islands. y = 0.2849Ln(x) - 0.7947 R2 = 0.1163 -3 -2 -1 0 1 2 3 0 20 40 60 80 100 Krill ... biomass density (g m-2) A 2 st an d ar d iz ed d ev ia te -3 -2 -1 0 1 2 3 0 20 40 60 80 ... (Euphausia superba) in the Scotia Sea, CCAMLR established a precautionary catch limit of 4 million tonnes and ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Author(s): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins
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Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990
: 40 tonnes urvey 8 9 70 AkademiJc Knipovich Survey 60 - 50 - 10 - 30 - 20 - 10 ... 0 A +++ +++ B +++ +++ C +++ +++ 53 30 42 0 A +++ +++ B 53.52 42.40 * C 53.68 42.35 ! 53 30 41 0 A 53.53 41.78 * A 53.72 41.57 ... 0 A 54.89 35.69 A 54.72 35.54 B 54.62 35.21 B 54.51 35.83 B 54.68 35.31 ** C 54.43 35.27 54 30 34 ... )l{eCTBa He60JIbllUX YJIOBOB U JIUllb HeCKOJIbKUX KpynHbIx YJIOBOB. He60JIbllOe KOJIUtleCTBO KpynHbIx ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Author(s): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)
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Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass
0 23.1 [38.1] 38 Simrad ES38B Split 2 2 1.0 (medium) 3.8 (wide) 1 -20.7 0 60.0 [38.1 ... "C). Une tendance similaire a ete decelee 2 35 kHz. Si les parametres d'etalonnage europeens devaient 6tre ... ~e H x a p a ~ ~ e p ~ 3 y e ~ c x s p e ~ e ~ ~ o f i C T ~ ~ M ~ ~ H O C T ~ ~ napaMeTpoB ycaneHMX. M e m ~ y IlepHOAaMM pa60~b1 a A H T ~ P K T H K ~ AaHHblfi npu6op KaJIll6poBanI4 ... BHeCeHMR ~3MeHeHPlfi AnR YYeTa MeXperHoHaJIbHbIX pa3nHYHfi B CKOPOCTM 3ByKa. B A ~ H H O ~ ~ pa60Te IIPe ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Author(s): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe
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Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)
moyenne ont Agnew et al. 72 été effectuées d’une part, en comparant des taux de capture normalisés ... by approximately 20% overall (with estimates from R being higher). However, there was a clear correlation between ... is 60%, sustainable yield under the CCAMLR deci- sion rules is now 4.5% of initial vulnerable biomass ... mawsoni) in the Ross Sea region. CCAMLR Science, 15: 35–53. Hilborn, R. and C.J. Walters. 1992 ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Author(s): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán
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Food and feeding of the mackerel icefish (Champsocephalus gunnari) around South Georgia in January/February 1991
80 60 40 20 0 Month 11-111 11-111 11-111 111-IV VIII 1-111 XII-I 11-111 Ill IV-V 11-111 ... 33.7 1 839 21.6 2 777 20.0 3 803 20.7 4 152 3.9 The proportion of empty stomachs varied ... of this variation may be due to variations in sample size (60 to 3 877) and an unrepresentative coverage ... studies was commonly of the order of 10 to 20% (Kock, 1981; Wilhelms, 1986; Kozlov et al., 1988). Higher ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 15–23 : Author(s): Kock, K.-H., I. Everson, S. Campbell, G. Parkes, Z. Cielniaszek and J. Szlakowski
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New data on spawning, hatching and growth of Champsocephalus gunnari on the shelf of the Kerguelen Islands
1971/72, yielded annual catches up to 30 000 tonnes in the first years of exploitation (Gerasimchuk ... by bottom trawl (30' duration; 12 to 20 stations, depending on weather and bottom conditions, total 150 ... of 1991/92 (Figure 3) . This group was also r - - - ' , ' i " " " ' " " " ' I " " 0 10 20 30 ... ). l J l l l l l / , , , 3 I " " " " I " " . I ' I ' ' " ' E a 0 10 20 30 2. 0 Total length (cm) 3 5 m 77 Figure3: Monthly LFDs for C. gunnari ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 21–34 : Author(s): Duhamel, G
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
estimated subarea biomass in up to 20% of years due to high variability in krill biomass indices. The actual ... in up to 20% of years due to high variability in krill biomass indices. The actual exploitation rate ... ., 2015)* 48.3 (Fielding et al., 2014) 1996 35.5 1997 46.5 31.7 1998 20.7 38.9 1999 7.8 9.7 ... exceed 9.3% of conservatively estimated subarea biomass in up to 20% of years due to high variability ... . the total weight of reproductively mature individuals) after 20 years of fishing should not be below 75 ... biomass falling to 20% of the reference level at any time should be no more than 10%. Constable et al ...
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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Detection and quantitative estimation of krill concentrations by hydroacoustic instruments
, is capable of registering individual krill at a depth of 50–60 m while the vessel is in motion. According ... of 50–60 m while the vessel is in motion. According to theoretical calculations, the range ... 3 2.107 L 1----. .1- _______ . __ .... __ . ___ _ 30 35 'ID so Figure 1 60 70 80 90 tDO ·120 ISO ... at a depth of 50 - 60 m while the vessel is in motion. According to theoretical calculations, the range ... des appareils hydroacoustiques sur le navire de recherche Odyssee. On a etabli que le sonar SK-l20 ... , jusqu'a la profondeur de - 124 - 50 a 60 m. Selon les calculs theoriques, la portee de detection du ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Author(s): Yudanov, K.I.
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Biogeographic patterns of benthic invertebrate megafauna on shelf areas within the Southern Ocean Atlantic sector
habitats into zoogeographical provinces date back to the early 20th century (Koehler, 1912; Hedgpeth ... was on the back deck and the benthos was shov- elled into baskets. Up to 20 baskets of benthos were transferred ... or unsortable organic mat- ter was also weighed and, for the latter, character- ised (e.g. 60% bryozoan ... 10.60 (1) 26 450–500 10.40 (1) 2 100–200 21.70 (2) 27 300–500 47.08 (3) 3 100–250 33.96 (3) 28 ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 167–192 : Author(s): Lockhart, S.J. and C.D. Jones