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1. Scientific observations in CCAMLR fisheries – past, present and future

   is responsible for the conservation of Antarctic marine living resources, including their rational use ... as seabirds. Although manage- ment of seals and whales falls under the 1973 Convention for the Conservation ... of the Antarctic eco system for which it is responsible in developing conservation strategies. The conservation ... ’ and ‘pre cau tionary’ approach to the conservation of marine living re sources. These principles have set ... -independent studies are difficult and expensive to conduct. In addition, the size of the Convention Area, its ... observers on board fishing vessels has assumed prominence in the collection of essential data for fisheries ... management purposes. The Scheme of International Scientific Observation, adopted by CCAMLR in 1992, is ... own country. This paper outlines the history of the scheme in terms of its logistics, participation ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 81–98 : Author(s): Sabourenkov, E.N. and E. Appleyard

2. e-sc-xvi-a4-appD.pdf

   ... values rather than, for example, a permanent change in the mean of a data series. 2.7 The paper by Dr ... in the mean and/or standard deviation in a series is better detected by calculating standardised residuals ... using the mean and standard deviation from a selected baseline derived from the series. From ... of behaviour in a series to be detected (a change in the mean, a change in the variance, trend, etc.); (ii ... , a permanent change in the mean of a data series. 2.7 The paper by Dr de la Mare (WG-EMM-Stats-97 ... thanked for the considerable work involved in producing such a comprehensive set of documents. 2.3 In ... reviewing the compilation of incides the subgroup noted a small number of errors which were corrected in WG ... -EMM-97/25 Rev. 1. 2.4 The subgroup also made some specific comments: (i) in the illustration of application/pdf attached to:WG-EMM-Stats-97

   Meeting Report : WG-EMM-Stats-97

3. 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

4. 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)

5. 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)

6. 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.

7. 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.

8. 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)

9. 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

10. 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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