Search results
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Preliminary acoustic results from the New Zealand IPY-CAML survey of the Ross Sea region in February-March 2008
into the Ross Sea region in support of the International Polar Year Census of Antarctic Marine Life (IPY-CAML ... shallower than 500 m. A weak layer at about 80 m depth was found to be associated with juvenile silverfish ... of 40–80 mm standard length. The other major source of acoustic backscatter on the Ross Sea shelf ... region in support of the International Polar Year Census of Antarctic Marine Life (IPY-CAML). The 50 day ...
Meeting Document : SG-ASAM-09/05 : Author(s): R. O’Driscoll, G. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet (New Zealand)
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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 ... KPHJI$l. B .l{Hana30He 2-20 KM cneKTp BOJIHOBbIX q,flceJI HanOMHHaeT OeJIbIM llIYM, XOT ... >-u z w ~ 0 w n:::: lL- Figure 5: 80'- :r 50 40 30 201- 10H 1111111111111111111111111 0 1.5 -0.5 0.5 2.5 ... 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 ...
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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Fishery Report 2014: Dissostichus eleginoides Kerguelen Islands French EEZ (Division 58.5.1)
on this stock assessment in the last few years, and on their commitment to carry out ageing, which is currently ... under way. The Working Group recommended that year-class strength should not be estimated until age ... and maturity stage as well as collection of otoliths for age determination of the target and most frequently ... . Specific ageing is in development to confirm this assumption. Stock assessment status 18. Three biomass ...
Document : Site Section: Publications
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Transhipment implementation report
5. This paper summarises the transhipment notifications received between 1 August 2018, and 31 July 2019 ... and publication in 2019/20. Author(s): CCAMLR Secretariat Title: Transhipment implementation report Microsoft ... summarises the transhipment notifications received between 1 August 2018, and 31 July 2019 and identifies ... and publication in 2019/20. ...
Meeting Document : CCAMLR-38/BG/15 : Author(s): CCAMLR Secretariat
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Conservation Measure Conservation Measure 24-01 (2017)
Adopted at Meeting: CCAMLR-XXXVI Period in Force: 2017- 2018 ... the fishing period. (d) When the review process in paragraph 3(a) is complete, beginning with the 2018/19 ... to scientific research and is adopted in accordance with Article IX of the Convention. 1. General application ... to review and comment on its Research Plan. The plan shall be submitted to the Secretariat by 1 June ... , for review by the relevant working group(s) of the Scientific Committee. Plans submitted after 1 June ...
Conservation Measure : 24-01 (2017)
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On the instantaneous natural mortality rate of Champsocephalus gunnari, South Georgia (Subarea 48.3)
composition of catches from 1964/65 to 1968/69 and the age/length key for the first half of 1972 were used ... /69 and the age/length key for the first half of 1972 were used in the calculations. The results ... to 1968/69 and the age/length key for the first half of 1972 were used in the calculations. The results ... /65 a 1968/69 et de la cle ages/longueurs pour la premiere moitie de 1972. Les resultats ont offert ... and Dorovskikh, 1989) for M. This research was carried out using age/length composition data from catches ... used (Table 1) as was the age/length key for the first half of 1972 (Table 2). Unlike the authors ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 313–326 : Author(s): Frolkina, G.A. and R.S. Dorovskikh
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Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects
distribution, random vessel effects and random stratum-by-year effects Abstract / Description: The current ... of standardised CPUE estimates and their precision can be obtained from the ‘fishing year’ parameter estimates ... of the imbalance in the number of hauls in the year-by-vessel cross-classification. Further, the inclusion ... of an area stratum by fishing year interaction as an additional random effect in the GLMM is investigated ... as i-d ev ia nc e, -2 Q + 0.5 1.0 1.5 2.0 25 80 00 26 00 00 26 20 00 26 40 00 26 60 00 0.5 0.6 ... 20 30 40 50 -0 .6 -0 .4 -0 .2 0. 0 0. 2 0. 4 0. 6 Ship index R an do n ef fe ct e st ... im at e 0 10 20 30 ... -2 0 0 20 40 60 80 10 0 Normal Quantiles P ea rs on R es id ua ls -4 -2 0 2 4 -2 0 0 20 40 60 ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Author(s): Candy, S.G
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Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
D. mawsoni. Mean fish lengths at ages 0.5, 1.5, 2.5, and 3.5 years were estimated to be 14, 28, 37, and 46 cm ... . Mean fish lengths at ages 0.5, 1.5, 2.5, and 3.5 years were estimated to be 14, 28, 37, and 46 cm TL ... ) have been aged assuming that one translucent zone is formed annually in the otoliths of this species ... in the otoliths of D. mawsoni appears to be a valid method for determining the age of this species. Author ...
Meeting Document : WG-FSA-02/33 : Author(s): P.L. Horn, C.P. Sutton (New Zealand) and A.L. DeVries (USA)
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Temperature-dependent growth of Thysanoessa macrura: inter-annual and spatial variability
data from four separate years (1995, 1998, 2001, 2004) that varied widely in temperature and primary ... of T. macrura varied between years and water masses, ranging from-0.037 mm day-1 in Weddell Sea water in 2004 ... during all years. Growth rates were strongly correlated with temperature but were not significantly ... in regions exhibiting warming trends, such as the Antarctic Peninsula. This contrasts with published data ...
Meeting Document : WG-EMM-13/39 : Author(s): R.M. Driscoll, C.S. Reiss and B.T. Hentschel (USA)
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A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia
Paper Title: A comparison between otoliths and scales for use in estimating the age ... of Dissostichus eleginoides from South Georgia Abstract / Description: Age composition is fundamental ... to understanding the population dynamics and productivity of a fish stock. The use of scales to estimate age can ... result in large errors in age data for long-lived species, usually due to compression of scale circuli ... the use of otoliths and scales in estimating tootlifish age 0 10 20 30 40 50 10 20 30 40 50 Reader ... in the commercial fishery were between 3 and 8 years. However, a validated age method using otoliths demonstrated ... scales indicated white suckers grew quickly at ages 4-7 years, few surviving beyond an age of 9 years ... , and demonstrated that the oldest age was 23 years. Large numbers of fish in unexploited populations survived ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Author(s): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson