Search results
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Research plan for toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in 2012/13
structure, size, movement and growth of Dissostichus spp. in the centred area of Division 58.4.4 a & b ... . An approximate stock biomass level of Dissostichus spp. in the survey area was tentatively estimated ... experiment in SSRUs B and C in the 2012/13 season with slightly modified designs, considering security of ... hauls, due to understanding of differences in the physical and hooking conditions of tagged fish between ...
Meeting Document : WG-SAM-12/17 : Author(s): Delegation of Japan
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Antarctic neritic krill Euphausia chrystallorophias: spatio-temporal distribution, growth and grazing rates
for only 180 days per year, mean growth rates ranged from 0.070-0.075 to 0.019-0.022 mm per day during ... in January-February and exhibited a mean length in the range 10.8-16.8 mm. In situ feeding rates were ... , mean growth rates ranged from 0.070-0.075 to 0.019-0.022 mm per day during the first and the fourth ... a mean length in the range 10.8-16.8 mm. In situ feeding rates were estimated in the Lazarev Sea using ...
Meeting Document : WG-Joint-94/10 : Author(s): E.A. Pakhomov (Ukraine) and R. Perissinotto (South Africa)
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Multiple acoustic estimates of krill density at South Georgia during 2000/2001 reveal significant intra-annual and spatial variability
difference between the mean krill density derived from only those 4 transects surveyed early- and late-season ... difference between the mean krill density derived from only those 4 transects surveyed early- and late-season ...
Meeting Document : WG-EMM-01/15 : Author(s): A.S. Brierley, C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst (United Kingdom)
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Statistical problems in krill stock hydroacoustic assessments
of the random sample mean and random sample variance will often provide a biased estimate of the mean ... by the contagious distribution of the negative binomial or Poisson type models where mean and variance ... . The time-series information cannot be obtained by any other means and, so long as data are collected ... applied to establish biomass in a survey area and the second is the improvement in accuracy of target ... -strength measurements. In the case of statistical methods, there are no clear guidelines for deciding what ... does not invalidate the use of available methods to conduct surveys and analyze results. In the case of ... to be not the absolute amount of biomass present in an area, but rather how it is distributed. The ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 301–309 : Author(s): Macaulay, M.C.
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Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013
g m-2) and its distribution was highly skewed with many zero observations. Within each survey the mean krill ... the densest krill swarms detected in any one year drove the mean krill density estimates for the WCB ... in that year. WCB krill density (µ, mean density for the area) showed several years (1997-8, 2001-2003, 2005 ... g m-2) and its distribution was highly skewed with many zero observations. Within each survey the mean krill ...
Meeting Document : WG-EMM-14/P04 : Author(s): S. Fielding, J. Watkins, P. Trathan et al.
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Variability in krill length distribution in 48.1 derived from data collected by scientific observers
Abstract: Information on the length distribution of krill in the catch, and the spatial and ... temporal patterns of krill length in the population is essential to assess krill population status and ... generalised additive mixed models (GAMM) to evaluate the spatial and temporal patterns of length in Antarctic ... Subarea 48.1 needs to be modified in order to gain a comprehensive understanding of the temporal and ...
Meeting Document : WG-EMM-15/16 : Author(s): P. Ziegler, S. Kawaguchi D. Welsford and A. Constable (Australia)
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Krill – biology, ecology and fishing
of any penguin species can be attributed to the operation of the krill fishery. That does not mean ... with it. When you add up all the individual estimates you also add up the uncertainties (which may mean ... success to detect changes in the relative consumption of krill. What does ‘recruitment’ mean and what ... to the operation of the krill fishery. That does not mean that CCAMLR is not concerned about those documented ...
Page : Site Section: Fisheries
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New Zealand’s exploratory fishery for toothfish within the SPRFMO Convention Area: update and future directions
will be shared with CCAMLR and had been used in the stock assessment of Antarctic toothfish in the Ross ... collected in more detail than the timing of the voyages has allowed so far. In addition, to maximise the ... include those components of the Antarctic toothfish stock residing in the SPRFMO Area as well as in the ... Abstract: The 2-year programme of exploratory fishing provided for by SPRFMO CMM 4.14 has been ...
Meeting Document : SC-CAMLR-XXXVI/BG/18 : Author(s): M. Cryer, A. Dunn and J. Fenaughty
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Preliminary results from a krill net sampling survey in CCAMLR Area 48.1 in 1989/90 season
Strait and in the SW shelf waters. Mean biomass was 10.1 tonnes per nautical square mile, i.e ... and in the SW shelf waters. Mean biomass was 10.1 tonnes per nautical square mile, i.e. an estimated stock ...
Meeting Document : SC-CAMLR-IX/BG/09 Rev. 1 : Author(s): Delegation of EEC
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e-cc-vi-aD.pdf
... the difficulty of this problem and the necessity of its serious study in order to find ways and means ... Staff Regulations to allow the Executive Secretary flexibility in setting hours of work for positions ... secretarial duties since late 1983. The Committee agreed that in view of this long period of employment the ... agreed with the Executive Secretary’s assessment of the efficiency and competence of the staff member in ... introducing a new category of staff. 8. It was suggested that the necessary flexibility in working hours
application/pdf attached to:SCAF-87Meeting Report : SCAF-87