Résultats de la recherche
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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
the 50-500 m isobaths than Everson039;s estimates, though changes in area are specific to the depth ... , estimated biomass and variability will be higher within a sampling stratum for species with higher ... depths, it follows that species with the greatest positive percentage change in biomass estimates are ... given strata j and the area Ajof that strata (de la Mare, 1994). Similarly, variance irB2 of abundance ... of the raw data follows that of Jones et al. (1999). Briefly, raw data of the combined information ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 197–204 : Auteur(s): C.D. Jones
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On the estimation of some demographic parameters for Adelie penguins
factors of lower adult survival rates in the year of first breeding, and the possibility that such ... breeding may be deferred one year if conditions are poor. A Bayesian approach for estimation of the model ... for illustrative purposes. The results for this case would likely be improved by the provision of more ...
Meeting Document : WG-EMM-95/42 : Auteur(s): Thomson, R.B., Butterworth, D.S.
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Conservation Measure Conservation Measure 10-02 (2004)
Licensing and Inspection Obligations of Contracting Parties with regard to their Flag Vessels ... in paragraph 1 and with the CCAMLR conservation measures. In the event that there is evidence that ... and inspection obligations of Contracting Parties with regard to their flag vessels operating in the ... fishing by its flag vessels in the Convention Area except pursuant to a licence3 that the Contracting ... data in accordance with CCAMLR requirements; (iv) operation of a VMS system on board the vessel in ...
Conservation Measure : 10-02 (2004)
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Updating the Antarctic krill biomass estimates for CCAMLR Subareas 48.1 to 48.4 using available data
. The index also suggests that realised exploitation rates were below 0.5% (i.e. catch was <0.5% of ... biomass) and that the potential exploitation rates implied by the operational catch limit (the trigger ... also suggest that exploitation rates are low and that there is no evidence of a systematic change in ... the krill stock. This evidence suggests that the trigger level is a highly precautionary operational ...
Meeting Document : WG-EMM-15/28 : Auteur(s): S. Hill, A. Atkinson, C. Darby, S. Fielding (United Kingsom), B. Krafft, O.R. Godø, G. Skaret (Norway), P. Trathan, J. Watkins (United Kingdom)
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Demography of Antarctic krill in the Lazarev Sea (Subarea 48.6) and the Elephant Island area (Subarea 48.1) in 2004
decline after the good krill years in 2001 and 2002. Krill density was lower in the Lazarev Sea, even ...
Meeting Document : WG-EMM-04/23 : Auteur(s): V. Siegel (Germany), V. Loeb (USA), B. Bergström (Sweden), S. Schöling (Germany), M. Haraldsson (Sweden), J. Kitchener (Australia), M. Vortkamp (Germany)
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Importancia de los estudios patológicos en depredadores tope del ecosistema marino Antártico
documentos enviados la reciente reunión del WG-EMM-2001, ante el hallazgo de anticuerpos contra enfermedades ...
Meeting Document : SC-CAMLR-XX/BG/18 Rev. 1 : Auteur(s): Delegación de Chile
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WG-CEMP-86
Y. Shimadzu and T. Hoshiai (Japan) WG-CEMP-86/07 The Soviet Proposals on the Program of the ... Ecosystem Monitoring of the Commonwealth Sea and Prydz Bay T. Lubimova (USSR) WG-CEMP-86/08 Adopted Agenda ...
Meeting
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Beyond MSY: a consideration of definitions of management objectives
recruitment or growth overfishing. Account also needs to be taken of the uncertainties associated with any ... Article II of the CCAMLR Convention. The criteria will depend on whether the main concern is with ... doing this. It may also be noted that because recruitment effects are not dealt with, FO . l may not ... be determined. Sissenwine and Shepherd propose the use of the median line, i.e. that with equal ... be met by taking an amount R-S t' so that the escapement (i.e. recruitment op less catch) will ... maintained at S t' then catches op will vary. It can be argued that they are not being sustained, and that ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Auteur(s): Gulland, J.A.
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Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning
be used to prioritise protection for bioregions that are currently under-represented in marine ... important differences between pelagic bioregions in terms of the fraction that was open to fishing, and the ... protected areas (MPAs). However, conservation planning should take account of uncertainties that result from ... , to ensure that protected areas can be selected to meet conser- vation objectives with minimal cost ... MPAs, stating that: ‘CCAMLR MPAs shall be established on the basis of the best available scientific ... ecosystem processes to determine the different regions and habitat types that must be represented (e.g ... that can meet the defined conservation objectives with minimal displacement of these activities. In ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Auteur(s): Grant, S.M., S.L. Hill and P.T. Fretwell
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Beach litter accumulation at sub-Antarctic Marion Island – 1998/99
strong seasonal effect with most items arriving during the winter. Litter retention studies showed that ... still double that recorded during 1984. This recent decrease was mainly due to a decrease in the number ... the most prevalent, followed by items with oriental script. Monthly accumulation studies showed a ...
Meeting Document : CCAMLR-XVIII/BG/22 : Auteur(s): Delegation of South Africa