Resultados de la búsqueda
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The recent decline in recruitment of Gobionotothen gibberifrons in the South Shetland Islands (CCAMLR Subarea 48.1)
’s. In 2012, the proportion of immature fish (<30 cm) in the population was less than 10 ... caused a number of years of very low recruitment around Elephant Island and the lower South Shetland ...
Meeting Document : WG-FSA-12/20 : Autor(es): K.-H. Kock (Germany) and C.D. Jones (USA)
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Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements
conducted regularly in some areas for nearly 20 years, and there is now a good appreciation of the range ... abundance has been subject to considerable research over the last 20 years (Greene et al., 1998), and it ... able to narrow the estimates of production from 75- 1 350 million tonnes per year (a factor of 20) to ... values within that range. In recent years there has been considerable research into the distribution ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Autor(es): Nicol, S., A.J. Constable and T. Pauly
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e-sc-xiii-a7.pdf
... addressed. Unfortunately, although there are sufficient years (up to 20) of predator data to contribute to ... recent years with the development and validation of acoustic techniques. Individual or groups of ... similar to that observed in previous years. It was noted that catches had been taken outside the ... was five times lower than the densities in the preceding four years. It was concluded that
application/pdf attached to:WG-KRILL/CEMP-94
Meeting Report : WG-KRILL/CEMP-94
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Cierre de la reunión de especialistas en asuntos antárticos celebrada en Hobart
Committee subsequently reviewed the outcomes of that meeting, together with several other specialist working ... determined by the last survey in 2000. A major new research program will run over the next few years to ... second year in which there were no reports of illegal fishing in the Convention Area. The Commission ...
Page : Site Section: The Organisation
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Simulations to evaluate model performance for Antarctic toothfish stock assessment in the Amundsen Sea region
next few years to predict progress towards a robust assessment model using the two-area model. The ... to be developed to assess the ASR for 2018, as recommended by Scientific Committee in 2016. Author(s ...
Meeting Document : WG-SAM-17/40 : Autor(es): S. Mormede and S. Parker
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
subarea, derived from the subarea catch limit, appears to exceed this level in up to 20% of years due to ... conservative estimates of the regional biomass in recent years. This suggests that the trigger level would be ... (or “trigger level”), established in 1991, is 0.62 million tonnes year-1, equivalent to ~1% of the ...
Meeting Document : WG-EMM-16/21 : Autor(es): S. Hill, A. Atkinson, C. Darby, S. Fielding, B. Krafft, O.R. Godø, G. Skaret, P. Trathan and J. Watkins
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An assessment of the merits of length and weight measurements of Antarctic krill Euphausia superba
animal has little effect upon length-weight relationships. The use of categories of sex and maturity ... prediction. Surprisingly, the stage of the moult cycle of the animal has little effect upon length-weight ... Universitat Kiel, Dusternbrooker Weg 20, 2300 Kiel, Federal Republic of Germany. Les relations publiees des ... prediccion. Sorpendentemente, la etapa del ciclo de muda del animal tiene poco efecto sobre las ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 371-373 : Autor(es): Morris D.J., J.L. Watkins, C. Ricketts, F. Buchholz, and J. Priddle
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Resolution Resolution 31/XXVIII (2009)
labor a fin de promover análisis rigurosos basados en principios científicos. En particular, se anima ...
Resolution : 31/XXVIII (2009)
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CCAMLR ecosystem monitoring and management: future work
scale during the early stages of the fi shery and to 0 1 2 3 0 1 2 3 D en si ty 0 10 20 30 ... Living Resources (CCAMLR) since 1982. Article IX of the Convention on the Conservation of Antarctic ... assessing such evidence during the formative years of CCAMLR. Decisions were made only in reaction to ... sheries. Article II of the Convention specifi es that the conservation objectives include the ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Autor(es): Constable, A.J
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NEW REGIONAL-SCALE SURVEYS OF THE ADÉLIE PENGUIN BREEDING POPULATION IN PRYDZ BAY: A STEP TOWARDS IMPROVED ESTIMATION OF KRILL CONSUMPTION IN EAST ANTARCTICA
conducted 30 years ago. To understand current levels of prey consumption in east Antarctica it is therefore ...
Meeting Document : WG-EMM-11/32 : Autor(es): C. Southwell, J. McKinlay, K. Newbery, L. Emmerson and J. Lieser (Australia)