Search results
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Methodology of data collection on net selectivity and accidental mortality of fish passing through the mesh of the codend
passing through the mesh of the codend Abstract / Description: This paper contains advice on determining ... of fish passing through the trawl codend. It contains proposals on standardising data collection ... Methodology of data collection on net selectivity and accidental mortality of fish passing through ... an experiment to determine the accidental mortality of fish passing through the trawl codend. It contains ... KPOMKaM K era HH~HeH rrnaTH. ITepe~Hhlhl H 3agHhlw KPOMKH STOH ~aCTH gnHHoH h2' paBHoH illHpHHe ... @ - OT 0 ~o 145 MM. HOMep ~yrra o 1 2 3 4 ,IJ;Hana30H 0-55 65-100 105-145 H3MepeHHR, MM 30-80 90 ... IIIBOB, nO~HnHH H ToneHaHTOB. Bcero H3MepReTcR 30 R~e:tl:: 10 B Ha~ane, 10 B cepe~HHe H 10 B KOH ... 6 16 26 7 17 27 8 18 28 9 19 29 10 20 30 - 114 - ___ .n, ____ _6~ _ '\_ h -y. a l cl ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 99-121 : Author(s): VNIRO (USSR)
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Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels
in the Crozet EEZ per fi shing sector and marine mammal species. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90 ... (n = 552, range 1–20) and 4.1 ± 3.4 (n = 737, range 1–30) individuals respectively. Table 1: Number ... 4. 0 (9 8. 7) 11 3 < 0. 00 1 0. 27 3 0. 00 1 4 2 80 8 44 2 20 9. 1 (1 34 .0 ) 31 6 2 58 1 62 ... whales killer whales sperm whales Fishing sector Le ve l o f i nt er ac tio n 90% 80% 70% 60 ... Exclusive Economic Zones: an assessment of depredation levels Abstract / Description: Interactions between ... together. An extensive photo-identifi cation effort, primarily focussing on killer whales, allowed a total ... small number of individual killer whales were responsible for most of the interactions with the fishery ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 67–82 : Author(s): Roche, C., C. Guinet, N. Gasco and G. Duhamel
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Small scale krill surveys: simulations based on observed euphausiid distributions
transects passing through three distributions each of which is given four rotations. The results indicate ... . The simulation involves a number of random paths of parallel or radially arranged transects passing through three ... 0 0.0 0.1 20% change in mean density 30% 40% 50 ... involves a number of random paths of parallel or radially arranged transects passing through three ... arperaU;Hl1 3B
30BaHO B u;eJI5IX MO,l{eJIHpOBaHH5I ... opraHH30BaHHbIX pa3pe30B, npOXO,l{5III\HX lIepe3 TpH pacnpe,l{eJIeHH5I, Ka:>K,l{Oe H3 CCAMLR Secretariat, 25 ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Author(s): Agnew, D.J. and S. Nicol
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The influence of bait quality on the sink rate of bait used in the Japanese longline tuna fishing industry: an experimental approach
. The addition of a 20 g lead sinker to a conventional 20 g tuna hook reduced the sink time of bait bearing ... floated, however, even when thawed. The addition of a 20 g lead sinker to a conventional 20 g tuna hook ... of added weight (sinkers) on the sink rates of bait. Lead sinkers weighing 10 g, 20 g, 30 g, 40 g and 50 ... and closed circles refer to thawed bait. lwashi 80 S $60 ! - C . r40 i7, 20 ... of the fish prevented them from sinking. With saba, 80% of small baits and 20% of large baits floated when ... . Fish with inflated swim bladders floated, however, even when thawed. The addition of a 20 g lead ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 123–129 : Author(s): Brothers, N., A. Foster and G. Robertson
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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 ... Paper Title: Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch ... in Australian sub-Antarctic trawl fisheries Abstract / Description: Estimates of age and growth were obtained ... whitsoni from the Ross Sea. 0 100 200 300 400 500 600 700 0 5 10 15 20 25 30 Age (years) To ta ... . The range of estimated ages was 4 to 25 years. There were no signifi cant differences in growth parameters ... otolith (estimated age: 14 years) viewed using transmitted light. The ageing transect illustrates ... with a birthday in each 30-day period. Age estimates were subsequently adjusted by taking into account ...
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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A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels
–40 –20 Sv (dB) 0 5 10 15 20 -100 -90 -80 -70 -60 -50 Ping number M VB ... noise –120 –100 –80 –60 –40 –20 Sv (dB) 0 50 ... (m 2 ) R P 5 4 3 30 Wang et al. Figure 7: Frequency distribution of mean Sv (a) and variation of MVBS (b) for 20 ... results obtained from the interference noise removed data. -120 -100 -80 -60 -40 -20 0 500 1000 1500 ... data has been recognised as an important way to estimate the distribution and relative abundance of ... the utility of fishing-vessel-based acoustic data for a range of objectives. File: Wang et al.pdf ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Author(s): Wang, X., J. Zhang and X. Zhao
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Preliminary results of investigations of the Federal Republic of Germany on Notothenia rossii marmorata (Fischer, 1885) in January/February 1985
consisted of age classes V – VIII. It seems doubtful if the conservation measures adopted in 1984 ... consisted of age classes V – VIII. It seems doubtful if the conservation measures adopted in 1984 ... to rebuild the stock around South Georgia might be successful. Although reported catches in recent years have ... years have been low, N. rossii around South Georgia is still largely affected by the fishery. Stock size ... age class. Age at recruitment t mnv thus be in the order of abouL 5 years. r , 4. Discussiun ... j •• ~3 /( /( Table 4: 150 (cm) 6' 0 + Asa (years)
age at sexual maturity (L 50 , A 50 ... 1.11 0 w ..... .... 0 a. 0 .... a. 4 6 8 4 6 8 age(years) fig. 8: Age at sexual maturity ... and is still close to length at sexual maturity. The major part of the population consisted of age classes ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 33-57 : Author(s): Kock, K.-H.
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Analysis and modelling of the Soviet Southern Ocean krill fleet
that fishing vessels begin to indicate in their log books the amount of between trawl time spent searching ... that fishing vessels begin to indicate in their log books the amount of between trawl time spent searching ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 127–235 : Author(s): Mangel, M.
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The Kerguelen database
frequency distributions of the species are also provided for the period 1979/80–1985/86. File: 02 ... for the period 1979/80–1985/86. ... 1985 % 1986 10 20 30 40 50 L( cm) V VII IX XI XIII xv XVII VI VIII X XII XIV XVI XVIII Age ... " YUII ~ -..J % 20 10 Figure 10 - 48 - LFD and ageing of N. squamifrons from the southern ... ). This is very useful as age determination with oto1iths is difficult. We have obtained the following data ... to only one age group. The LFD and ageing of N. squamifrons are illustrated in Figure 10 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 23-54 : Author(s): Duhamel, G.
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Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea
0 2 4 6 8 10 12 14 16 N u m b e r o f d e a d c h ic k s 0 10 20 30 40 50 60 70 80 ... 7/1 17/1 27/1 6/2 16/2 N u m b e r o f d e a d c h ic k s 0 10 20 30 40 50 60 70 80 ... /99 0 2 4 6 8 10 12 14 16 N u m b e r o f d e a d c h ic k s 0 10 20 30 40 ... : comparison between years. J. Anim. Ecol., 62: 634–646. Watanuki, Y., A. Kato, Y. Naito, G. Robertson ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Author(s): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi