Search results
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Assessments of the stocks of Notothenia rossii marmorata and Champsocephalus gunnari in the South Georgia area
, since a 20-fold reduction in the stock in the early 1970's led to only a 3-fold increase in per capita ... than this. The corresponding expected recovery times to 50% of initial biomass are approximately 20 ... 0.20 1.00 9 0.91 1. 00 0.18 1.00 10 0.74 1.00 0.15 1.00 11 0.42 1. 00 0.0$ 1. 00 12 0.34 1.00 0.07 ... rn 1970 0.84 0.16 0.76 0.24 1971 0.82 0.19 0.73 0.26 1972 0.84 0.20 0.75 0.28 1973 0.89 0.32 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 1-21 : Author(s): Cooke, J.G.
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Mitigation of seabird captures during hauling in CCAMLR longline fisheries
48.3 the 13 vessels that used Type I BEDs caught 43 seabirds, on the haul, while the 20 vessels using ... III Method 2005 20 2 (1) Sp 4 (19) 3 Sp; 1 A 2006 21 3 (14) Sp 6 (7) 2 Sp; 4 A 2007 10 ... 5 (9) Sp 4 (1) 4 A 2008 20 3 (19) Sp 6 (1) 1 Sp; 5 A 1 (0) Sp 161 Mitigation of seabird captures ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 155–162 : Author(s): Reid, E., B. Sullivan and J. Clark
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Integrating Count Effort by Seasonally Correcting Animal Population Estimates (ICESCAPE): a method for estimating abundance and its uncertainty from count data using Adélie penguins as a case study
nestlings…’, but the additional statement ‘…the observations were carried out… from 20 to 24 January 1979 ... repeatability of 1.4%, and, to be conservative, that the counts were made some time from 20 to 24 January 1979 ... November 1990, and 52 adults on 4 or 6 December 1990. Date uncer- tainty was taken to be ±1 day around 20 ... 0.10 0.20 Availability ratio R el at iv e fre qu en cy 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0.00 0.02 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 213–227 : Author(s): McKinlay, J., C. Southwell and R. Trebilco
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Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia
of these vessels each month was taken around Shag Rocks (70 to 80% of catches in April, June and August, and 55 ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Author(s): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce
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Target strengths of Antarctic krill (Euphausia superba)
was the "20 log r" type. The pulse repetition frequency was a constant 50 pulses/m in, with alternating ... case, Event number 20, the number increased by two specimens, believed entrapped by the cage during ... , was 0.5 m vertically and slightly more aslant as viewed from the transducer. For the particular "20 log ... strengths in uncompensated OD units are -20.3 and -19.3 dB at 38 and 120 kHz, respectively, with respective ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Author(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote
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Archival and satellite-linked data recorders
. The smallest transmitter commercially available measures approximately 50mm by 80mm by 13mm (Telonica, Mesa ... ::t...~ (4) Time-budget recorder 35x25x18 7.5 digital watch < US$ 20 direct obs (6) Table ... . » Wide operating temperature: -20°C to +35°C. » Simple serial interface to personal computer at rates ... resolution at shallow depths. » optional temperature channel: -SaC to +20 o C, resolution O.loC ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 475-493 : Author(s): Hill, R.D.
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Modelling krill recruitment
equal to the observed mean, and variance calculated according to equation (20) above. Since ... to equation (20 ) and then used to calculate the parameters for a beta distribution which in turn is used ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 49–54 : Author(s): W.K. de la Mare
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The use of predator-derived krill length-frequency distributions to calculate krill target strength
, there is a 20-year time series of data on the repro- ductive performance of krill-dependent predators ... results in a survey variance of 20% (Brierley et al., 1999). By integrating data from land-based ... : differences between species and techniques. Mar . Ecol. Puog. Ser., 140 (1-3): 13-20. Reid, K., K. Barlow ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 155–163 : Author(s): Reid, K. and A.S. Brierley
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The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters
Probability Random groups 1 611.46 611.46 0.32 0.57913 Penguins in groups 39 73702.28 1889.80 42.79 0.0 ... 1:=" ....... _ ..... --. -_ ........ _._ ............ -.:. .... ;.; ....... -.... -......... -;.. . .. -.... -... _ .............. ~ .... _._ ", ................... " .................... _ ••••••• 'H' . ... ~ ....... -.-........ -.... ~.- .... - 20 ... 1-............. _ .......... _ .... " ...... --............................................... " .... -................................ " ...................... " .... " .... " .............................. " ............... " ................ " .......... " ..................... " .... " .............. .. 1 0 1-.. "'" .' .'"."."." " ....... "--.... '" .. " .. " ............ " . --. " .. ""." .......... " ... "." ..... " .... -.. " .. --." .. --............... ' ... " ---......... " ............. " ..... -.. " .. ,,' ...... . .._ ...... o IL-______________ L-______________ ~ ______________ J-______________ ~ o 10 20 30 40 dec 13 1987 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Author(s): Marschoff, E. and B. González
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Areas of seabed within selected depth ranges in CCAMLR Subarea 48.3, South Georgia
' - 54°42' 53°36' - 54°58' 53°10' - 54°59' 53°50' - 54°25' 54°00' - 54°15' 54°02' - 54°20' 54°14 ... ' - 54°33' 54°20' - 54°33' 54°05' - 54°23' 54°03' - 54°23' 53°50' - 54°15' Longitude Range ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 459–466 : Author(s): Everson, I. and S. Campbell