Search results
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Target strengths of krill at 136 and 20 kHz
Paper Title: Target strengths of krill at 136 and 20 kHz Abstract / Description: Estimation ... the mean single-krill target strengths range from-71 to-77 dB at 20 kHz. Trawl hydroacoustic method ... Target strengths of krill at 136 and 20 kHz ... lengths from 43 to 47 mm the mean single-krill target strengths range from -71 to -77 dB at 20 kHz. Trawl ... _--'-_~~_~_-'---~_~~_ 20 25 30 :35 40 45 50 55 60 ~ MM Figure 6. Krill target strength at 120 and 136 kHz ... -60.3 -82.4 36.0 3.1 0.25 Table 4: Results of krill target strength assessment at 20 kHz. Trawl ... WG-KRILL-91/29 TARGET STRENGTHS OF KRILL AT 136 AND 20 ... range from -71 to -77 dB at 20 kRz. Trawl hydroacoustic method. For aggregations with mean lengths ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 141–157 : Author(s): Kasatkina, S.M.
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Comparative feeding ecology of Patagonian toothfish (Dissostichus eleginoides) in the southwestern Atlantic
between 46°-55°S and 60°-64°W, and around South Georgia between 53°-55°30' and 3°-45°W. The South ... ;S and 60°-64°W, and around South Georgia between 53°-55°30' and 3°-45° ... between 46"-55"s and 60"-64"W, and around South Georgia between 53"-55'30' and 35'-45"W. The South ... peliie entre 46"-55's et 60'-64OW, et autour de la Georgie du Sud entre 53"-55'30' et 35"-35"W. Le ... @e/c~noHe MeXAy 4 6 ° - 5 5 0 ~ . ~ . H 60"-64"3.~., H ROKPYr IOXHOW reoprm Memay 53°-55030'3.~. M 35'-45 ... '00' 42'23' 36'30' 45'00' 60'54' 62"15' 60'18' 64'20' 60'19' 62'39' Study Area/Vessel South Georgia ...
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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Acoustic data analysis and models of krill spatial distribution
. The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales smaller than 1 km ... . The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales smaller than 1 km ... resembles a white noise at scales of 2-20 km, although at scales smaller than 1 .km the spectrum appears ... ressemble a un son blanc aux echelles de 2 a 20 km, mais aux echelles inferieures a 1 km, le spectre semble ... KPHJI$l. B .l{Hana30He 2-20 KM cneKTp BOJIHOBbIX q,flceJI HanOMHHaeT OeJIbIM llIYM, XOT ... . A escalas de 2-20 km, el espectro del numero de ondas se parece a un ruido blanco, aunque a escalas ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 311–329 : Author(s): Morin, A., A. Okubo and K. Kawasaki
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Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
of spawning-only females from the slope. 5 10 15 20 25 30 35 0. 00 0. 02 0. 04 0. 06 0. 08 0. 10 Age ... 2006 131 131 2007 250 250 2009 92 12 104 February 2002 12 8 20 2006 ... not be abundant in a recently spawned ovary. These cells range in size from 20–150 μm. Later in the season, some ... Length 762 136.4 20.7 134.8–138.1 Age 17.2 6.7 16.7–17.7 All Male Length 56 120.4 19.7 114.8–126.7 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Author(s): Parker, S.J. and P.J. Grimes
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Can toothfish catches be used to predict the presence of vulnerable benthic invertebrate taxa?
– Gorgonians NULL NA NA 1331 642.95 NA Toothfish (3rd) 3 5.62 1328 637.34 0.01 Latitude (2nd) 2 72.20 ... . A total of 1 332 segments with known toothfish catch was available (1 272 present and 60 absent ... of positive observations. 150 °E 160° E 170°E 180° 170°W 160°W 150°W 80° S 75° S 70° S 65° S 60 ... ° S 150 °E 160° E 170°E 180° 170°W 160°W 150°W 80° S 75° S 70° S 65° S 60° S 1 2 3 4 Figure ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 87–96 : Author(s): Parker, S.J. and M.H. Smith
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Biological characteristics of Antarctic fish stocks in the southern Scotia Arc region
-Antarctic species predominated in the fish fauna. Species groups differed by up to 55-60% from one shelf ... predominated in the fish fauna. Species groups differed by up to 55-60% from one shelf area to the other ... or peri-Antarctic species predominated in the fish fauna. Species groups differed by up to 55-60% from ... . Les groupes d'especes diffPrent jusqu'a 55-60% d'un secteur du plateau a un autre, en raison ... B IIepBbIe 4 rOAa IIpOMbICna H IIpeKpaCHyIO BO3MOWHOCTb An2 0~60pa 06pa7rlo~ M 3 3TMX YJIOBOB. B TeveHHe ... ~ ~ ~ ~ A H O - ~ H T ~ ~ K T M ~ ~ C K B ~ B n e p a - a ~ ~ a p ~ ~ ~ l u e c ~ ~ e B H A ~ I . Mexay r r r enb@a~~ p a 3 ~ ~ u a B BHAOB~IX rpynnax AoxoAMna no 55-60%, B OCHOBHOM 3a cqeT pa3~111 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 1–41 : Author(s): Kock, K.-H., C.D. Jones and S. Wilhelms
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Analysis of changes in biomass of fish stocks in the South Georgia area in 1976/77-1986/87
). >- L 100 80 2 60 x 40 20 158114 t \ \ \ \ \ \ \ \ \ . \ \ \ . 1976/17 ... npOTpaJIeHHhlX nJIO~aAeH. B TeqeHHe 60JIbWHHCTBa npOaHaJIH3HpOBaHHhlX ce30HOB npoBeAeHHaH OQeHKa OXBaThlBaJIa ... MHorO'IHcneHHoro rOAOBoro KJlaCCa B npOMhlcnOBblH 3anac. BenH'IHHa 6HOMaCCbl APyrHx npHAoHHblX BHAOB 60 ... subdivisions (56, 57, 60-62 acc. to Everson 1984), exploited regularly by the Polish fishery, in the 11 years ... biomass density of C. gunnari stock. High biomass density appeared with 2-4 year intervals after ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 185-211 : Author(s): Mucha, M. and W. Ślósarczyk
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Operational interactions of sperm whales and killer whales with the Patagonian toothfish industrial fishery off southern Chile
le s (in di vi du al s) 0 10 20 30 40 50 60 70 80 90 E ffo rt ( ha ul s ob se ... rv ed ) (a) 0 5 10 15 20 25 30 35 40 45 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ... Month K ill er w ha le s (in di vi du al s) 0 10 20 30 40 50 60 70 80 90 E ffo rt ... + 173.06 R2 = 0.8552 0 5 10 15 20 25 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 127–140 : Author(s): Hucke-Gaete, R., C.A. Moreno and J. Arata
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Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)
Total Total 52 114 672 563.03 79.00 1 193.60 1 570.05 2 842.65 24.79 23.72 Scientific ... 2 7 4 7 35.01 3.98 91 36.00 1 22 22 22.00 2 48 91 72.68 11.80 2 8 75 78 76.50 2.12 2 2 0 35 26.67 4.80 ... 2.43 1.14 2.07 0.43 0.58 0.60 0.25 4.37 3.85 0.35 1.80 Arana and Vega (Roshchin ... longline sets in the Antarctic region (60°53'-61'58's and 54'47'-60°20'W) at depths ranging between 600 ... system) were used for the operation, with variable quantities of fish hooks (1 440 to 4 320), No. 9 ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Author(s): Arana, P.M. and R. Vega
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Results of the CCAMLR Antarctic fish otoliths/scales/bones exchange system
H Toro :>Ke BH,lIa PbI6bI B Pa3JIHlIHbIX JIa60paTOpH5IX. 3Ta CHCTeMa OXBaTbIBaJIa lIeTbIpe BH,lIa ... 12.0 deviation = 1 year (%) 2 60.0 X 26.2 25.6 7.0 3 54.2 47.6 X 16.7 6.0 4 71.2 50.0 55.3 X 20 ... 35.5 23 14/05/85 37.4 24 14/05/85 36.8 25 17/05/85 26.7 26 20/05/85 37.7 27 07/08/85 36.6 28 07 ... F 2 9/- 12/12 -/7 10/9 8/10 20 81 35.6 400 M 1 1 2/- 1 Oln r -/7 9/1 0 9/10 24,65 43.2 870 F 1 1 01 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 197–226 : Author(s): Kock, K.-H.