Search results
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
be used with caution. Further work is needed to determine whether the thorn ageing technique presented ... and should be used with caution. Further work is needed to determine whether the thorn ageing technique ... . Further work is needed to determine whether the thorn ageing technique presented here produces ... individual aged from thorns was 31 cm PL. Thorns from a 17.81 cm PL neonate A. georgiana found ... of this study are preliminary and should be used with caution. Further work is needed to determine whether ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 183–194 : Author(s): Francis, M.P. and C. Ó Maolagáin
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The utilization of seabird censuses for krill monitoring
the advice needed by the Commission and calls for indirect measures of krill population status. Ecosystem ... species present at different krill levels and latitudes. This restriction is needed if non-singular ... 1 4 1 ) 1 4 2 1 I 4 2 31 4 2 13 • 3 I 2 1 2l 11 1 2 I ) 1 4 I 5 3 I 1 425 13 4 2 31 4 1 3 I 1 2 1 I 41 ... . 3 3 , 4 l ) , 3 4 3 4 Figure 6 5 5 5 3 I lS 3 45 1 , 5 3 4 , 1 1 I ~! 4 5 31 5 41 l I 1 5 - 414 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 393-425 : Author(s): Marschoff, E.R., J.G. Visbeek and L.R. Fontana
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By-catch of fish in the krill fishery
was however taking large amounts of krill and fish. There is clearly a need for further information ... 11 4 54 55 35 2 220 155 40 31 27 225 1.58 50 11 4 54 49 34 49 240 580 35 35 27 600 1.33 51 4 54 55 ... 2.75 65 18 4 54 38 35 14 225 205 235 1.42 66 18 4 54 31 35 19 160 160 50 40 30 725 1.83 67 18 4 54 ... 470 545 2.25 86 10 5 55 0 33 47 3000 3000 70 150 1430 87 11 5 54 57 31 34 4700 4700 65 150 315 0.50 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 381–401 : Author(s): Everson, I., A. Neyelov and Y.B. Permitin
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Fish stock assessment survey in Subarea 48.3
for finfish within the CCAMLR area. The need for further assessment of the stocks within this subarea has ... that there were no outlying values resulting from isolated large catches. There was therefore no need to apply ... and therefore consider it highly unlikely that the first possibility is the cause. Any migration would need ... demersal fish surveys. Document WG-FSA-91/19. Hobart, Australia: CCAMLR. 31 PARKES, G. 1991c. Stock ...
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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On the power to detect changes using the standard methods for monitoring parameters of predatory species
, these conditions will not be attainable due to logistic impracticalities, so ex and p may need to be reduced ... that it would be preferable to take protective action when there was an apparent but false need rather than ... failing to take protective action when there was a true but undetected need for conservation measures ... will need to be revised to include a strategy for weighting the mean from each five- day period ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Author(s): Boveng, P. and J.L. Bengtson
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Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels
; Hucke-Gaete et al., 2004). However, further investigations are needed to address the problems ... 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 ... 2. 7 (1 61 .7 ) 31 3 < 0. 00 1 0. 06 8 0. 16 5 4 04 8 31 7 19 8. 6 (8 8. 4) 43 5 1 97 ... 4. 0 (6 9. 3) 10 3 95 8 50 21 7. 3 (7 1. 5) 6 60 9 80 11 9. 3 (7 1. 2) 6 0. 31 4 0. 76 3 0. 88 ...
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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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
needs to be used when the number of observations is zero. When the number of observations is greater ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Author(s): Ball, I
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Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation
parameterisation can give a high source of uncertainty, and there is an urgent need for development of accurate ... of uncertainty, and there is an urgent need for development of accurate and standard procedures to measure both ... parameterisation can give a high source of uncertainty, and there is an urgent need for development of accurate ... 1. 15 0. 29 3 0. 36 2 20 1. 2 0. 31 9 0. 39 4 30 1. 3 0. 37 4 0. 46 2 40 ... and temporal variability, the need for more measurements of density and sound–speed con- trasts ... model predictor is necessary. Correct application of the SDWBA model for krill still needs accurate ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Author(s): Calise, L. and G. Skaret
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Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea
., 2000). However, the degree to which trips lengthen is con- strained by the need to relieve the mate ... -climatological Observatory) taken about the same time each year (29 December 1998, 1 January 2001 and 31 ... , (b) 1 January 2001 and (c) 31 December 2002. (a) (c) (b) 30 0 30 ... ). Differences between years were not signifi cant. The mean crèching date, 14 January (SD ± 3.3 days; n = 31 ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Author(s): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi
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[node:field-journal-volume]:37-51
importance, and is in need of monitoring and management. However, little is known about its biology ... origin and lateral line (mean in parentheses) <27 22–31 (26) 25–59 (36) Pyloric caeca (mean ... for a few scales opposite the angles of the mouth); • smaller scales with 25–59 (22–31) in an oblique ... row count – lateral line to vent 22–31 26 11 Scale row count – second dorsal fin origin to lateral ...
Science Journal Paper : 37–51