Search results
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Influence of tag numbers, size of tagged fish, duration of the tagging program, and auxiliary data on bias and precision of an integrated stock assessment
annual recruitment and year class strengths. (3) For a simulated lightly fished stock, CASAL assessments ... , however the precision of SSB status estimates in the final assessment year was relatively low. Bias ... and year class strengths. (3) For a simulated lightly fished stock, CASAL assessments with good quality ... the precision of SSB status estimates in the final assessment year was relatively low. Bias and precision ...
Meeting Document : WG-SAM-12/24 : Author(s): P.E. Ziegler (Australia)
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Analysis of observer coverage for Japanese krill fishing vessels
stage cluster sampling units (i.e., vessel, year, subarea, and haul), and examined changes ... had the largest impacts, and year coverage had moderate impacts on CV for both mean krill length ... cluster sampling units (i.e., vessel, year, subarea, and haul), and examined changes in the coefficients ... the largest impacts, and year coverage had moderate impacts on CV for both mean krill length and fish bycatch ...
Meeting Document : WG-SAM-10/17 : Author(s): T. Okuda, M. Kiyota and H. Okamura (Japan)
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Summary of monitoring and research activities at Svarthamaren, Dronning Maud Land
covered by the monitoring system the mean number of pairs producing a chick each year is about 132,000 ... . On average 52% of the reproductive fraction of the population breeds each year indicating that the total ... covered by the monitoring system the mean number of pairs producing a chick each year is about 132,000 ... . On average 52% of the reproductive fraction of the population breeds each year indicating that the total ...
Meeting Document : WG-EMM-97/78 : Author(s): Lorentsen, S., Tveraa, T., Røv, N.
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Changes to the Statistical Bulletin
: (1) publication of data by CCAMLR season rather than by split-year (agreed at SC-CAMLR-XXI); and (2) a revision ... data records include a reference to the split-year and month when fishing occurred. However, in a small ... : (1) publication of data by CCAMLR season rather than by split-year (agreed at SC-CAMLR-XXI); and (2) a revision ... data records include a reference to the split-year and month when fishing occurred. However, in a small ...
Meeting Document : SC-CAMLR-XXII/BG/07 : Author(s): Secretariat
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Population numbers of fur seals at Prince Edward Island, Southern Ocean
intrinsic rate of natural increase of 13.7% per year, Antarctic fur seals appear to be in the rapid ... rate of natural increase of some 9.5% per year since 1987/88. Author(s): M.N. Bester, P.G. Ryan ... intrinsic rate of natural increase of 13.7% per year, Antarctic fur seals appear to be in the rapid ... rate of natural increase of some 9.5% per year since 1987/88. ...
Meeting Document : WG-EMM-03/18 : Author(s): M.N. Bester, P.G. Ryan and B.M. Dyer (South Africa)
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Beach litter survey Signy Island, South Orkney Islands, 1993/94
, a total of 6 items were found (0.30 kg). It is clear that almost all debris found originates from ... (0.30 kg) . It is clear that almost all debris found originates from accidental or deliberate dumping ...
Meeting Document : CCAMLR-XIII/BG/11 : Author(s): Delegation of United Kingdom
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Risk maps for Antarctic krill under projected Southern Ocean acidification
by the year 2100 unless emissions are mitigated. Risk maps, combining modelled hatch rates ... south of the Polar Front is predicted to be unsuitable for hatching by the year 2300, which would lead ... are predicted by models to rise to above 1500 μatm in some parts of krill’s depth range by the year ... south of the Polar Front is predicted to be unsuitable for hatching by the year 2300, which would lead ...
Meeting Document : WG-EMM-14/P06 : Author(s): S. Kawaguchi, A. Ishida, R. King, B. Raymond, N. Waller, A. Constable, S. Nicol, M. Wakit and A. Ishimatsu
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An initial examination of using CPUE as a fishery performance index for the krill fishery
as the difference between this overall mean and the mean for each year in which the vessel fished. An overall ... fishery performance index (FPI) was derived from the sum of the vessel-specific indices for each year ... between this overall mean and the mean for each year in which the vessel fished. An overall fishery ... performance index (FPI) was derived from the sum of the vessel-specific indices for each year. The annual FPI ...
Meeting Document : WG-EMM-16/10 : Author(s): CCAMLR Secretariat
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The Secretariat review of the Strategic Plan, associated activities and outcomes
at last year’s meetings of WG-SAM and WG-FSA the Commission adopted a recommendation from the Scientific ... at last year’s meetings of WG-SAM and WG-FSA the Commission adopted a recommendation from ...
Meeting Document : WG-EMM-11/09 : Author(s): Secretariat
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Hydrography and acoustic biomass estimates of Antarctic krill (Euphausia superba) near the South Shetland Islands, Antarctica, during January 2000: preliminary results
and CV in the Bransfield strait was 9 g/m2 and 20.3 %. Krill swarms of relatively high densities occurred ... and CV in the Bransfield strait was 9 g/m2 and 20.3 %. Krill swarms of relatively high densities occurred ...
Meeting Document : WG-EMM-00/52 : Author(s): D. Kang, Y. Lee, H.-C. Shin, W. Lee and S. Kim (Republic of Korea)