Search results
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Simulating performance of trend analysis for setting catch limits in exploratory toothfish research plans
Abstract: Catch limits for toothfish in research blocks were set for the 2017/18 season using a ... qualitative analysis of trends in biomass estimated in each research block and a series of simple decision ... developed and tested as a matter of priority for WG-SAM-18. We formalised and codified the rules and ... developed a simulation approach to examine the performance of the trend analysis rules for scenarios with ...
Meeting Document : WG-SAM-18/23 : Author(s): S. Hoyle, S. Parker, A. Dunn and S. Mormede
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A LARGE-SCALE SURVEY OF ADÉLIE PENGUIN BREEDING DISTRIBUTION IN EAST ANTARCTICA
across the Australian Antarctic Territory in east Antarctica found that approximately half of the species ... sites, increasing the number of known breeding sites in the survey region by 42% from 104 to 148. Author ... Abstract: A recent gap analysis of knowledge of the breeding distribution of the Adélie penguin ... ’ potential breeding habitat had no evidence of ever being searched. With such incomplete knowledge of the ...
Meeting Document : WG-EMM-11/34 : Author(s): C. Southwell and L. Emmerson (Australia)
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Orientation of Antarctic krill in an aquarium
. Although mature females with marked swelling of the cephalothorax were not included in the experiment, the ... center of mass was found to be situated more to the anterior than in males and immature females. The ... estimated on the basis of Kils’ model. Mature females with swollen cephalothorax demonstrated larger tilt ... angles relative to the horizontal plane than did males, as the center of mass is positioned more to the ...
Meeting Document : WG-KRILL-93/24 : Author(s): Y. Endo (Japan)
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Trade data analysis – A report of trends and supply chains in CDS data
Abstract: Analysis of the trends and supply chains in the CDS data for 2016 and 2017 has ... identified increased use of the CDS with increases in the number of DCDs (41%), DEDs (35%) and DREDs (193 ... States of America (USA) in both years followed by Viet Nam. Analysis of supply chains within the CDS ... %) between these years. Across both years Chile had the greatest number of DCDs landings, exports and the ...
Meeting Document : CCAMLR-XXXVII/BG/03 : Author(s): CCAMLR Secretariat
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Overview of global trade in toothfish (Dissostichus spp.)
imports globally have seen an increase of 16.08% and exports have seen an increase in 15.54%. The average ... USA as still the largest importer of quantity (29.72%), but a prevalence of imports in Southeast Asia ... GLOBEFISH unit, an analysis was conducted for the five-year period of 2012–2016 on the global trends of the ... . Captures the global trade of toothfish. The analysis showed that over this five-year period quantity of ...
Meeting Document : CCAMLR-XXXVI/BG/05 Rev. 1 : Author(s): CCAMLR Secretariat
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Preliminary assessment of Patagonian toothfish in Subarea 48.3
presented. The assessment results from this year’s analyses are very similar to those of 2011. SSB in the ... Abstract: A preliminary assessment of toothfish (Dissostichus eleginoides.) in Subarea 48.3 is ... terminal assessment year continues to be estimated at around 54% of virgin biomass, consistent with the ... outputs from the 2-fleet and 3-fleet assessments are very similar with the exception of the ...
Meeting Document : WG-FSA-13/30 : Author(s): R. Scott (United Kingdom)
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An assessment of Chaenocephalus aceratus and Pseudochaenichthys georgianus in Subarea 48.3
for these two species by assuming that 75% of the ‘unidentified fish’ caught by the Soviet Union in ... ) (bycatch) limit of 300 tonnes would seem to be appropriate to allow recovery of both species in the near ... because of a lack of reliable biological and catch data. This paper attempts to reconstruct the fishery ... the years 1977 to 1988 consisted of catches of C. aceratus and P. georgianus. Biological, age-length ...
Meeting Document : WG-FSA-90/06 : Author(s): D.J. Agnew (Secretariat) and K.-H. Kock (Germany)
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Estimates of bird by-catch by IUU vessels in Subarea 48.3, 1998–2001
by other vessels in 1997. Including the Isabel data and weighting the bootstrap estimates of bird ... catch rate by the number of hooks observed leads to revised estimates of total catch in 1999, 2000 and ... Abstract: Estimates of bird catches by IUU fishing made using the new method presented by Agnew ... and Kirkwood last year (WG-FSA-02/4 & 5) are updated to take account of the comments of the ...
Meeting Document : WG-FSA-03/56 : Author(s): D.J. Agnew (United Kingdom)
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Sexual dimorphism and sexual segregation in foraging strategies of northern giant petrels Macronectes halli during incubation
dimorphism, in terms of the intersexual food competition hypothesis, on foraging and fasting strategies of ... Abstract: Giant petrels (Macronectes spp) are the most sexually dimorphic of all seabirds. We ... used satellite-tracking and mass change during incubation to investigate the influence of sexual size ... , duration of foraging trips) was greater for females than for males. In contrast, foraging efficiency ...
Meeting Document : WG-FSA-99/38 : Author(s): J. González-Solís, J.P. Croxall and A.G. Wood (United Kingdom)
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Echo integration in low signal to noise regimes: methods of noise estimation and removal
that the physically meaningful quantity "noise power", being the apparent received power (dB ... integration intervals include only noise. Further, it is recommended that the physically meaningful quantity ...
Meeting Document : WG-EMM-97/74 : Author(s): Higginbottom, I., Pauly, T.