Resultados de la búsqueda
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Revised estimates of seabed areas within the 500 m isobath of the South Orkney Islands (subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish
examined, the point estimate of total biomass increased from 5 to 30% for eight species and decreased by 20 ... eight species and decreased by 20% for one. Une carte bathymetrique revisee des iles Orcades du Sud ... presented by Everson (1987). These estimates were based on constructing isobaths by hand based on ... converted to planar square areas by measuring the distances between isobaths and converting to square ... 1999, there was no weighting by data series, and any replicated data points were averaged. Data used ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 197–204 : Autor(es): C.D. Jones
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
surveys within the 500 m isobath of the South Orkney Islands, most recently by the Federal Republic of ... the 500 m isobath of the South Orkney Islands, most recently by the Federal Republic of Germany in ... tonnes of C. gunnari, supported mainly by 1973/74 and 1974/75 cohorts (Kock, 1991). Both cohorts were ... largely exhausted within two years, and overall catches declined by almost two orders of magnitude ... bottom trawl surveys conducted by the Federal Republic of Germany (Kock, 1986) in 1976,1978 and 1985 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Autor(es): Jones, C.D., K.-H. Kock and E. Balguerías
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Optimization of survey sampling design in the detection of interannual variability and prey size selectivity in the diet of penguins
the assumptions of balanced design and the variance component of ‘penguin-by-date’ interaction equal ... and the variance component of "penguin-by-date" interaction equal to the variance component of ... of Ad6lie penguins from Bahfa Esperanza was made using a nested ANOV A design with data grouped by ... variability due to penguin selectivity because the design used was not intended to calculate the "penguin-by ... detection is also discussed. 2. DETECTIONOFINTERANNUAL VARIATIONS IN THE MEAN SIZE OF KRILL EATEN BY ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 551–559 : Autor(es): Marschoff, E. and B. Gonzalez
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?
difference between the real mean characteristic for a sex, and the apparent mean derived by sexing the birds ... for a sex, and the apparent mean derived by sexing the birds using discriminant analysis. When ... recognised this problem, in 1991 noting that analyses by Scolaro et al. (1990) and Kerry et al. (1992) had ... were supplied by Dr Knowles Kerry (Australian Antarctic Division) to whom I am grateful. These data ... were collected between 22 and 31 December 1990 at Bechervaise Island, Mawson Base (67'36°W 62'49°E) by ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Autor(es): Agnew, D.J.
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Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia
value recommended by CCAMLR. File: 10cassia.pdf ... L oo = 207.01 cm, K = +0.0748 and t o =-0.2898. The maximum age of D. eleginoides was found to be ... by CCAMLR. Resume Comparaison des lectures d'bges d'ecailles et d'otolithes de 105 specimens de ... was highlighted by the CCAMLR Working Group on Fish Stock Assessment (SC-CAMLR, 1991,1992,1993,1994 ... ). It was noted that this refinement could be achieved by comparing age readings from scales and ... otoliths of the same fish, as well as readings conducted by different readers. According to Moreno and ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Autor(es): Cassia, M.C
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A functional division of Electrona carlsbergi (Tåning, 1932) area of habitat in relation to the latitudinal zonation of the Southern Ocean
of E. carlsbergi were analysed by length composition, sex ratio and maturity stages in relation to ... analysed by length composition, sex ratio and maturity stages in relation to the location where samples ... by the theory that the reproductive part of the E. carlsbergi distribution area coincides with the ... the area bounded by 40°00' to 42°30'S and 16°00' to 17°00'W was also carried out. The distance ... of the South Atlantic, of a fairly broad S TFZ bounded by two temperature/salinity fronts, together ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 369–395 : Autor(es): Zemsky, A.V. and S.A. Zozulya
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Modelling variability and estimating power to detect change in Adélie penguin fledgling weights
. If practical, these findings could have substantial benefits by simplifying data collection. File ... or decrease after an impact. Fledgling weight was found to decline through the fledging period each ... could have substantial benefits by simplifying data collection. Résumé Des modèles statistiques de ... five periods are given in Table 1) as recommended by the CEMP Standard Methods (CCAMLR, 1997). All ... . Under these assumptions, variation in fledgling weight can be described by the model equation: Table 1 ... five-day period, all years combined. Years indicated by * are included in the final analysis. Shaded ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 191–200 : Autor(es): Emmerson, L.M., C. Southwell and J. Clarke
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Ciencia
and its use by the Commission in achieving its objectives. The main route for scientific advice in ...
Page : Site Section: Science
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Results of study of the oogenesis characteristics of Antarctic toothfish (Dissostichus mawsoni Norman 1937) (Nototheniidae) from Subareas 88.1 and 88.2 (Ross Sea)
mawsoni) reproductive system, caught in December-March, 2004-2005 by the longliner VOLNA in subareas 88.1 ...
Meeting Document : WG-FSA-07/49 : Autor(es): S. V. Piyanova and A.F. Petrov (Russia)
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Report on a random stratified trawl survey to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari conducted in the Heard Island region (Division 58.5.2), May–June 2007
abundant species in the catch was D. eleginoides, followed by Lepidonotothen squamifrons, Channichthys ...
Meeting Document : WG-FSA-07/46 : Autor(es): G.B. Nowara and T. Lamb (Australia)