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Phytoplankton distribution in the mixed layer: implication to krill abundance
Paper Title: Phytoplankton distribution in the mixed layer: implication to krill abundance ... Abstract / Description: A one dimensional Lagrangian model of random walk is presented to study the ... distribution of phytoplankton in the Antarctic Ocean. Since little is known about mixed layer dynamics in the ... Antarctic Ocean, we estimate the depth of the mixed layer and its turbulence intensity from an Ekman layer ... layer, otherwise there is no physical forcing. The step size ZP(n) follows a normal distribution with ... continuous medium within the mixed layer. No significant change in the density of particle was observed ... the Antarctic ocean. 4. SUMMARY Our simulation is still in an early stage. No suggestions can be ... SC-CAMLR-VII/BG/26 PHYTOPLANKTON DISTRIBUTION IN THE ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 331–356 : Autor(es): Yamazaki, H. and T.R. Osborn
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
the season in August. Killer whale interactions appear to be more consistent with no obvious pattern ... Paper Title: Estimating the impact of depredation by killer whales and sperm whales on longline ... data collected on longliners between 2003 and 2009 were analysed to look at the levels of depredation ... , and often appear to actively seek out fishing vessels and ‘strip’ the line of a large number of ... on observed sets which had no cetacean interactions, Cy,l is the declared catch in year y on ... sets having interactions of type l and sets having no cetacean interactions. The three interaction ... confirm the much higher impact of killer whales, with CPUE usually being reduced by 50%, but no ... with no general trend during the time period from 2003 to 2009 (Table 2). The large difference in ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Autor(es): Moir Clark, J. and D.J. Agnew
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Vertical migrations of mackerel icefish (Champsocephalus gunnari) on the South Georgia shelf
had yielded almost no catches at all. The information obtained on vertical migrations of C. gunnari ... Paper Title: Vertical migrations of mackerel icefish (Champsocephalus gunnari) on the South ... Georgia shelf Abstract / Description: High values of coefficient of variation resulting from the ... calculation of mackerel icefish biomass (Champsocephalus gunnari) from trawl survey data on the South Georgia ... observed at night. Fishing during this period with bottom trawls had yielded almost no catches at all. The ... this period yielded almost no catches at all. The second peak from 11:00 to 16:00 hr was observed only ... (CHAMPSOCEPHALUS GUNNARI) ON THE SOUTH GEORGIA SHELF J.A. Frolkina and V .I. Shlibanov* * Abstract High ... values of coefficient of variation resulting from the calculation of mackerel icefish biomass ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 3–14 : Autor(es): Frolkina, J.A. and V.I. Shlibanov
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Performance and geometry of the FP-120 trawl used during UK fish stock assessment surveys around South Georgia, Subarea 48.3
Paper Title: Performance and geometry of the FP-120 trawl used during UK fish stock assessment ... surveys around South Georgia, Subarea 48.3 Abstract / Description: Methods for calculating the horizontal ... opening (and, thus, swept area) of a bottom trawl are discussed. In situ measurements of the FP-120 trawl ... used during the 1993/94 UK fish stock assessment survey around South Georgia on the MV Cordella are ... Data Points No. of Data Points No. of Data Points No. of Data Points opportunity to test the ... AND GEOMETRY OF THE FP-120 TRAWL USED DURING UK FISH STOCK ASSESSMENT SURVEYS AROUND SOUTH GEORGIA ... Kensington London SW 7 INA, UK Abstract Methods for calculating the horizontal opening (and, thus ... , swept area) of a bottom trawl are discussed. In situ measurements of the FP-120 trawl used during the ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 51–69 : Autor(es): Pilling, G. and G. Parkes
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Low genetic diversity and temporal stability in the Antarctic toothfish (Dissostichus mawsoni) from near-continental seas of Antarctica
Paper Title: Low genetic diversity and temporal stability in the Antarctic toothfish ... data on the DNA analysis of recent (2011–2013) samplings of Antarctic toothfish (Dissostichus mawsoni ... (2011), 882A (2011, 2012) and 883C (2012). No significant genetic differences between geographic ... analysis of the most informative subset of nuclear genetic markers of SNP variation presented in Kuhn and ... generally not a migratory fish and most fish are caught within 50 km of the release site. CCAMLR Science ... km from the release site (Dunn et al., 2005a, 2007; Hanchet et al., 2008). The first genetic study ... locus MLL (^GATC recognition site). To assess locus CK7, the PCR product was digested with Csp6I, (G ... . It has a circumpolar distribution south from the Antarctic Convergence (Gon and Heemstra, 1990) and ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 1–9 : Autor(es): Mugue, N.S., A.F. Petrov, D.A. Zelenina, I.I. Gordeev and A.A. Sergeev
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Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003
Paper Title: Seabird mortality in the Patagonian toothfish longline fishery around Crozet and ... Kerguelen Islands, 2001–2003 Abstract / Description: The legal Patagonian toothfish (Dissostichus ... eleginoides) longline fishery operating in the French Exclusive Economic Zones (EEZs) of Crozet and Kerguelen ... August 2003. Overall, the white-chinned petrel (Procellaria aequinoctialis) was the most frequently ... with no moon. However, this relationship varied between seasons, as suggested by the signifi cant ... a large proportion of the birds caught are breeding adults from these sites. Thus, for the petrels ... (2005): 53–80 53 SEABIRD MORTALITY IN THE PATAGONIAN TOOTHFISH LONGLINE FISHERY AROUND CROZET AND ... Dejean, BP 400 97 458 Saint-Pierre Cedex La Réunion, France Abstract The legal Patagonian toothfi sh ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 53–80 : Autor(es): Delord, K., N. Gasco, H. Weimerskirch, C. Barbraud and T. Micol
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Distribution and size–age composition of Antarctic krill (Euphausia superba) in the South Orkney Islands region (CCAMLR Subarea 48.2).
+, 4+, 5+) dominated in Antarctic Circumpolar Current (ACC) waters in the northern parts. No 1+ age ... Paper Title: Distribution and size–age composition of Antarctic krill (Euphausia superba) in the ... South Orkney Islands region (CCAMLR Subarea 48.2). Abstract / Description: The distribution, size–age ... composition and biological condition of Antarctic krill (Euphausia superba) caught by the Russian krill ... Circumpolar Current (ACC) waters in the northern parts. No 1+ age cohort was found in catches in 2009 or in ... Understanding the population structure of Antarctic krill (Euphausia superba) is one of the major issues for ... the management of krill fisher- ies. This includes locating areas with high and low krill spawning ... success. Determining the distribu- tion of different age classes of krill is critical for studying the ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 123–134 : Autor(es): Sologub, D.O. and A.V. Remeslo
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Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution
simulated data from the Dirichlet-multinomial distribution Abstract / Description: The incorporation of ... ‘effective sample size’ (ESS) in integrated assessments is an approximate but simple way of modelling the ... heterogeneity within fishing year was simulated using samples from the Dirichlet-multinomial (D-M) distribution ... its variants. One of the methods is based on the lack-of-fit of predictions of class probabilities ... of ESS were no longer possible. the dirichlet-multinomial model Consider initially a single year ... methods are compared using the simulation Candy 122 model with no process error or systematic error ... thE dirichlEt-multinomial distribution S.G. Candy Department of the Environment, Water, Heritage ... and the Arts Australian Antarctic Division 203 Channel Highway, Kingston 7050 Tasmania, Australia ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Autor(es): Candy, S.G
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Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill
the annual size distributions of krill in penguin diets. Simulations with either no fishing, or with ... projections and the CCAMLR decision rules for Antarctic krill Abstract / Description: The generalised yield ... model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ... (Euphausia superba) fishery. The current precautionary catch limit was based on supplying the GYM with a ... studies and in the annual size distributions of krill in penguin diets. Simulations with either no ... all years of the recruitment vector in a single trial. Four values of gamma were modelled: no catch ... Island recruitment proportions with no additional CV on the recruitment vector and natural mortality ... from all four regions were all above the CCAMLR depletion decision rule at no catch, at the trigger ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Autor(es): Kinzey, D., G. Watters and C.S. Reiss
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Characteristics of seasonal variation in diurnal vertical migration and aggregation of Antarctic krill (Euphausia superba) in the Scotia Sea, using Japanese fishery data
of Antarctic krill (Euphausia superba) in the Scotia Sea, using Japanese fishery data Abstract ... / Description: Seasonal variation in the diurnal vertical migration and aggregation of Antarctic krill ... (Euphausia superba) associated with the daylight phase over the diurnal cycle (i.e. brightness categories ... ) was examined for the Scotia Sea (South Shetland Islands (SS), South Orkney Islands (SO) and South ... (Euphausia superba Dana) under the coastal fast ice off the Ongul Islands in Lutzow-Holm Bay, Antarctica ... AGGREGATION OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) IN THE SCOTIA SEA, USING JAPANESE FISHERY DATA K. Taki ... -ku, Shizuoka, 424-8633 Japan Email – takisan@affrc.go.jp Abstract Seasonal variation in the diurnal ... vertical migration and aggregation of Antarctic krill (Euphausia superba) associated with the daylight ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 163–172 : Autor(es): Taki, K., T. Hayashi and M. Naganobu